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we briefly review the halo-independent formalism, that allows to compare data from different direct dark matter de- tection experiments without making assumptions on the properties of the dark matter halo. we apply this method to spin-independent wimp-nuclei interactions, for both isospin-conserving and isospin-violati... | update on the halo-independent comparison of direct dark matter detection data |
searches for dark matter at the lhc are commonly described in terms of simplified models with scalar, pseudo-scalar, vector and axial-vector mediators. in this work we explore the constraints imposed on such models from the observed dark matter relic abundance. we present these constraints over a range of mediator mass... | cosmological constraints on dark matter models for collider searches |
sabre (sodium-iodide with active background rejection) is a new nai(tl) experiment designed to search for galactic dark matter through the annual modulation signature. sabre will consist of highly pure nai(tl) crystals operated in an active liquid scintillator veto. the sabre experiment will follow a two-phase approach... | sabre: dark matter annual modulation detection in the northern and southern hemispheres |
we show that for a relatively light majoron (ll 100 ev) non-thermal production from topological defects is an efficient production mechanism. taking the type i seesaw as benchmark scheme, we estimate the primordial majoron abundance and determine the required parameter choices where it can account for the observed cosm... | light majoron cold dark matter from topological defects and the formation of boson stars |
the evidence for the dark matter (dm) of the hot big bang cosmology is about as good as it gets in natural science. the exploration of its nature is now led by direct and indirect detection experiments, to be complemented by advances in the full range of cosmological tests, including judicious consideration of the rich... | dark matter |
measurements from the gaia satellite have greatly increased our knowledge of the dark matter velocity distributions in the solar neighborhood. there is evidence for multiple cold structures nearby, including a high-velocity stream counterrotating relative to the sun. this stream could significantly alter the spectrum o... | direct detection anomalies in light of g a i a data |
we revisit the $l_\mu - l_\tau$ extension of the standard model that can simultaneously address anomalies in semileptonic $b$ meson decays and the nature of dark matter (dm). in the region favored by the $b$ anomalies, this scenario is excluded by a combination of low-energy flavor constraints and stringent dm direct d... | $b$ anomalies and dark matter in an $l_\\mu-l_\\tau$ model with general kinetic mixing |
as liquid xenon tpcs increase in target mass while pursuing the direct detection of wimp dark matter, the technical challenges arising due to their size call for new solutions and open the discussion on alternative detector concepts. proportional scintillation in liquid xenon allows for a single-phase design evading pr... | prospects of charge signal analyses in liquid xenon tpcs with proportional scintillation in the liquid phase |
we propose a new method for the discrimination of sub-micron nuclear recoil tracks from instrumental background in fine-grain nuclear emulsions used in the directional dark matter search. the proposed method uses a 3d convolutional neural network, whose parameters are optimised by bayesian search. unlike previous studi... | deep learning for direct dark matter search with nuclear emulsions |
we consider the possibility that neutrino masses arise from the exchange of dark matter states. we examine in detail the phenomenology of fermionic dark matter in the singlet-triplet scotogenic model. we explore the case of singlet-like fermionic dark matter, taking into account all coannihilation effects relevant for ... | phenomenological profile of scotogenic fermionic dark matter |
direct detection experiments are looking for nuclear recoils from scattering of sub-gev dark matter (dm) in crystals, and have thresholds as low as ~ 10 ev or dm masses of ~ 100 mev. future experiments are aiming for even lower thresholds. at such low energies, the free nuclear recoil prescription breaks down, and the ... | anharmonic effects in nuclear recoils from sub-gev dark matter |
we analyze interactions between dark matter and standard model particles with spin one mediators in an effective field theory framework. in this paper, we are considering dark particles masses in the range from a few mev to the mass of the z boson. we use bounds from different experiments: z invisible decay width, reli... | effective field theory analysis of dark matter-standard model interactions with spin one mediators |
two-phase noble liquid detectors, with large target masses and effective background reduction, are currently leading the dark matter direct detection for wimp masses above a few gev. due to their sensitivity to single ionized electron signals, these detectors were shown to also have strong constraints for sub-gev dark ... | lbeca: a low background electron counting apparatus for sub-gev dark matter detection |
cryogenic rare event search with superconducting thermometers (cresst) is a long-standing direct dark matter detection experiment with cryogenic detectors located at the underground facility laboratori nazionali del gran sasso in italy. cresst-iii, the third generation of cresst, was specifically designed to have a wor... | searches for light dark matter with the cresst-iii experiment |
the dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood. in this paper we make a systematic study of the impact of astrophysical uncertainties on electron recoil events at the direct detection experiments with xenon and semico... | halo uncertainties in electron recoil events at direct detection experiments |
the seesaw and leptogenesis commonly depend on the masses of the same particles and thus are both realized at the same scale. in this work, we demonstrate a new possibility to realize a tev-scale neutrino seesaw and a natural high-scale leptogenesis. we extend the standard model by two gauge-singlet scalars, a vectorli... | tev-scale neutrino mass generation, minimal inelastic dark matter, and high scale leptogenesis |
we study the phenomenological credibility of a vectorial dark matter, coupled to a z' portal through chern-simons interaction. we scrutinize two possibilities of connecting a z' with the standard model: (1) through kinetic mixing and (2) from a second chern-simons interaction. both scenarios are characterized by suppre... | z' portal to chern-simons dark matter |
the cryogenic dark matter search low ionization threshold experiment (cdmslite) achieved efficient detection of very small recoil energies in its germanium target, resulting in sensitivity to lightly ionizing particles (lips) in a previously unexplored region of charge, mass, and velocity parameter space. we report fir... | constraints on lightly ionizing particles from cdmslite |
we perform a systematic study of the electric and magnetic dipole moments of dark matter (dm) that are induced at the one-loop level when dm experiences four-fermion interactions with standard model (sm) charged fermions. related to their loop nature these moments can largely depend on the uv completion at the origin o... | dark matter electromagnetic dipoles: the wimp expectation |
we revisit the detection of luminous dark matter in direct detection experiments. in this scenario, dark matter scatters endothermically to produce an excited state, which decays to produce a photon. we explore ways in which the electron recoil signal from the decay photon can be differentiated from other potential ele... | low-mass dark matter (in)direct detection with inelastic scattering |
(α,n) reactions play an important role in nuclear astrophysics and applications and are an important background source in neutrino and dark matter detectors. measurements of total (α,n) cross sections employing direct neutron detection often have a considerable systematic uncertainty associated with the energy-dependen... | the 3he bf3 giant barrel (hebgb) neutron detector |
we summarize the evidence for dm-like anomalies in neutron multiplicity spectra collected underground with pb targets by three independent experiments: nemesis (at 210 m.w.e.) nmds (at 583 m.w.e.), and zeplin-ii (at 2850 m.w.e.). a new analysis shows small but persistent anomalies at high neutron multiplicities. adjust... | nemesis setup for indirect detection of wimps |
quantum mechanics allows for states in macroscopic superpositions, but they ordinarily undergo rapid decoherence due to interactions with their environment. a system that only interacts gravitationally, such as an arrangement of dark matter (dm), may exhibit slow decoherence. in this letter, we compute the decoherence ... | general relativistic decoherence with applications to dark matter detection |
direct detection of nuclear scatterings of sub-gev dark matter (dm) particles favors low-z nuclei. hydrogen nucleus, which has a single proton, provides the best kinematic match. the characteristic nuclear recoil energy is boosted by a factor of a few tens from those for larger nuclei used in traditional weakly interac... | light dark matter detection with hydrogen-rich targets and low-tc tes detectors |
direct detection experiments are gaining in mass reach. here we show that the inclusion of dark compton scattering, which has typically been neglected in absorption searches, has a substantial impact on the reach and discovery potential of direct detection experiments at high bosonic cold dark matter masses. we demonst... | impact of dark compton scattering on direct dark matter absorption searches |
the dual-phase xenon time projection chamber (tpc) is a leading detector technology in rare event searches for dark matter and neutrino physics. the success of this type of detector technology relies on its capability to detect both primary scintillation and ionization signals from particle interactions in liquid xenon... | performance of a radial time projection chamber with electroluminescence in liquid xenon |
photon detection is important for liquid argon detectors for direct dark matter searches or neutrino property measurements. precise simulation of photon transport is widely used to understand the probability of photon detection in liquid argon detectors. traditional photon transport simulation, which tracks every photo... | photon detection probability prediction using one-dimensional generative neural network |
we compare the general effective theory of one-body dark matter nucleon interactions to current direct detection experiments in a global multidimensional statistical analysis. we derive exclusion limits on the 28 isoscalar and isovector coupling constants of the theory, and show that current data place interesting cons... | global limits and interference patterns in dark matter direct detection |
xmass is a multipurpose liquid-xenon detector that currently aims to directly detect dark matter. in this paper, we describe the fabrication and characterization of reference sources used for the energy calibration and position reconstruction of the present xmass detector. several gamma-ray sources were produced in the... | micro-source development for xmass experiment |
we propose a new strategy to search for a particular type of dark matter via nuclear capture. if the dark matter particle carries baryon number, as motivated by a class of theoretical explanations of the matter-antimatter asymmetry of the universe, it can mix with the neutron and be captured by an atomic nucleus. the r... | dark matter capture by atomic nuclei |
from an assumed signal in a dark matter (dm) direct detection experiment a lower bound on the product of the dm-nucleon scattering cross section and the local dm density is derived, which is independent of the local dm velocity distribution. this can be combined with astrophysical determinations of the local dm density... | halo-independent tests of dark matter direct detection signals: local dm density, lhc, and thermal freeze-out |
we investigate catalysis of electroweak baryogenesis by fermionic higgs portal dark matter using a two higgs doublet model augmented by vector-like fermions. the lightest neutral fermion mass eigenstate provides a viable dark matter candidate in the presence of a stabilizing symmetry z_2 or gauged u(1)_d symmetry. allo... | catalysis of electroweak baryogenesis via fermionic higgs portal dark matter |
dark matter can scatter and excite a nucleus to a low-lying excitation in a direct detection experiment. this signature is distinct from the canonical elastic scattering signal because the inelastic signal also contains the energy deposited from the subsequent prompt de-excitation of the nucleus. a measurement of the e... | prospects for dark matter detection with inelastic transitions of xenon |
recently we studied the direct detection of multi-component dark matter with arbitrary local energy densities. although the generation of the dark matter relic abundance is model-dependent, and in principle could be only indirectly related to direct detection, it is interesting to consider the implications of the forme... | on the direct detection of multi-component dark matter: implications of the relic abundance |
in multi-component scalar dark matter scenarios, a single zn (n ≥ 4) symmetry may account for the stability of different dark matter particles. here we study the case where n is even (n = 2n) and two species, a complex scalar and a real scalar, contribute to the observed dark matter density. we perform a phenomenologic... | two-component scalar dark matter in z2n scenarios |
we study simple effective models of fermionic wimp dark matter, where the dark matter candidate is a mixture of a standard model singlet and an n-plet of su2 lwith n ≥ 3, stabilized by a discrete symmetry. the dark matter mass is assumed to be around the electroweak scale, and the mixing is generated by higher-dimensio... | well-tempered n-plet dark matter |
there is no known reason that dark matter interactions with the standard model should couple to neutrons and protons in the same way. this isospin violation can have large consequences, modifying the sensitivity of existing and future direct detection experimental constraints by orders of magnitude. previous works in t... | isospin-violating dark matter at liquid noble detectors: new constraints, future projections, and an exploration of target complementarity |
we propose to split the sparticle spectrum from the hierarchy between the gut scale and the planck scale. a split supersymmetric model, which gives non-universal gaugino masses, is built with proper high dimensional operators in the framework of so(10) gut. based on a calculation of two-loop beta functions for gauge co... | a split susy model from susy gut |
decays of radioisotopes on inner detector surfaces can pose a major background concern for the direct detection of dark matter. while these backgrounds are conventionally mitigated with position cuts, these cuts reduce the exposure of the detector by decreasing the sensitive mass, and uncertainty in position determinat... | surface background suppression in liquid argon dark matter detectors using a newly discovered time component of tetraphenyl-butadiene scintillation |
anais is a direct dark matter detection experiment aiming at the confirmation or refutation of the dama/libra positive annual modulation signal in the low energy detection rate, using the same target and technique. anais-112, located at the canfranc underground laboratory in spain, is operating an array of 3×3 ultrapur... | machine-learning techniques applied to three-year exposure of anais-112 |
for the interpretation of past and future direct searches for dark matter (dm) particles, it is important to be able to provide accurate predictions for event rates and spectra under a variety of possible and viable assumptions in a computationally efficient way. while there exists a few tools to compute dm induced nuc... | obscura: a modular c++ tool and library for the direct detection of (sub-gev) dark matter via nuclear and electron recoils |
results from direct detection experiments are typically interpreted by employing an assumption about the dark matter velocity distribution, with results presented in the mχ-σn plane. recently methods which are independent of the dm halo velocity distribution have been developed which present results in the vmin-g̃ plan... | halo-independent direct detection analyses without mass assumptions |
in recent decades, inorganic crystals have been widely used in dark matter direct search experiments. to contribute to the understanding of the capabilities of csi(na) and caf2(eu) crystals, a mono-energetic neutron beam is utilized to study the properties of nuclear recoils, which are expected to be similar to signals... | neutron beam tests of csi(na) and caf2(eu) crystals for dark matter direct search |
virialized ultra-light fields (vulfs) are viable cold dark matter candidates and include scalar and pseudo-scalar bosonic fields, such as axions and dilatons. direct searches for vulfs rely on low-energy precision measurement tools. while the previous proposals have focused on detecting coherent oscillations of the vul... | detecting dark matter waves with precision measurement tools |
we present a measurement of the cosmogenic activation in the cryogenic germanium detectors of the edelweiss iii direct dark matter search experiment. the decay rates measured in detectors with different exposures to cosmic rays above ground are converted into production rates of different isotopes. the measured product... | measurement of the cosmogenic activation of germanium detectors in edelweiss-iii |
the darkside-50 experiment at the laboratori nazionali del gran sasso is a search for dark matter using a dual phase time projection chamber with 50 kg of low radioactivity argon as target. light signals from interactions in the argon are detected by a system of 38 photo-multiplier tubes (pmts), 19 above and 19 below t... | the electronics, trigger and data acquisition system for the liquid argon time projection chamber of the darkside-50 search for dark matter |
we explore the possibility of a beyond the standard model scalar ($\phi$) as a possible explanation of the diphoton resonance at 750~gev invariant mass reported by the atlas and cms collaborations at the large hadron collider (lhc). we first present in a model-independent way the scalar-gluon-gluon and scalar-photon-ph... | the 750 gev diphoton excess in a two higgs doublet model and a singlet scalar model, with vector-like fermions, unitarity constraints, and dark matter implications |
the framework of nonrelativistic effective field theory (nreft) aims to generalize the standard analysis of direct detection experiments in terms of spin-dependent and spin-independent interactions. we show that a number of nreft operators lead to distinctive new directional signatures, such as prominent ringlike featu... | new directional signatures from the nonrelativistic effective field theory of dark matter |
the standard interpretation of direct-detection limits on dark matter involves particular assumptions of the underlying wimp-nucleus interaction, such as, in the simplest case, the choice of a helm form factor that phenomenologically describes an isoscalar spin-independent interaction. in general, the interaction of da... | discriminating wimp-nucleus response functions in present and future xenon-like direct detection experiments |
the μev-scale axion is a compelling cold dark matter candidate. the axion dark matter experiment (admx) searches for axions by stimulating the decay of galactic dark matter halo axions into detectable microwave photons by their conversion in a resonant cavity permeated by a strong, static magnetic field. the signal dep... | limits on axion-photon coupling or on local axion density: dependence on models of the milky way's dark halo |
parity (p )-violating pseudoscalar or pseudovector cosmic fields are invoked in different models for cold dark matter or in the standard model extension that allows for lorentz invariance violation. a direct detection of the timelike component of such fields requires a direct measurement of p -odd potentials or their e... | parity-nonconserving interactions of electrons in chiral molecules with cosmic fields |
we investigate the complex interactions between the stellar disc and the dark-matter halo during bar formation and evolution using n-body simulations with fine temporal resolution and optimally chosen spatial resolution. we find that the forming stellar bar traps dark matter in the vicinity of the stellar bar into bar-... | dark matter trapping by stellar bars: the shadow bar |
recent cdf ii collaboration results on $w$ mass measurements contradict standard model~(sm) prediction, requiring new physics to explain this anomaly. to explain this issue, in this paper we investigate the idea of using the $u(1)_{b-l}$ gauged sm extension. we demonstrate that $b-l$ extended models can explain the rev... | $b-l$ model in light of the cdf ii result |
rades (relic axion detector exploratory setup) is a project with the goal of directly searching for axion dark matter above the $30 \mu$ev scale employing custom-made microwave filters in magnetic dipole fields. currently rades is taking data at the lhc dipole of the cast experiment. in the long term, the rades cavitie... | scalable haloscopes for axion dark matter detection in the 30$\\mu$ev range with rades |
the detection of a single quantum of energy with high efficiency and low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the direct detection of low-mass dark matter. we report the first experimental demonstration of magneti... | quantum detection using magnetic avalanches in single-molecule magnets |
in some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. in this class of scenarios, the reach in parameter space of direct detection experiments is limited by the velocity of the dark matter particle, usually taken as the... | enhanced prospects for direct detection of inelastic dark matter from a non-galactic diffuse component |
we chose the μ-term extended next-to-minimal supersymmetric standard model (μnmssm) for this work, and we perform a phenomenological study based on the assumption that the observed standard model (sm)-like higgs is explained by the presence of a double overlapping resonance and in light of the recent (g − 2)μ result. t... | the mass-degenerate sm-like higgs and anomaly of (g − 2)μ in μ-term extended nmssm |
we propose hexagonal ice (h$_2$o) as a new target for light dark matter (dm) direct detection. ice, a polar material, is suitable for single phonon detection through dm scattering for which we consider light dark photon and light scalar mediator models. we report a rate sensitivity down to a dm mass of $\sim$kev, const... | broad-range directional detection of light dark matter in cryogenic ice |
sabre (sodium iodide with active background rejection) is a direct detection dark matter experiment based on arrays of radio-pure nai(tl) crystals. the experiment aims at achieving an ultra-low background rate and its primary goal is to confirm or refute the results from the dama/libra experiment. the sabre proof-of-pr... | simulation and background characterisation of the sabre south experiment |
for a class of macroscopic dark matter models, inelastic scattering of dark matter off a nucleus can generate electromagnetic signatures with gev-scale energy. the icecube detector, with its kilometer-scale size, is ideal for directly detecting such inelastic scattering. based on the slow particle trigger for the deepc... | icecube at the frontier of macroscopic dark matter direct detection |
pair production of higgs bosons at the large hadron collider (lhc) is known to be important for the determination of the higgs boson self-coupling and as a probe of new physics beyond the standard model (sm), especially the existence of new fundamental scalar bosons. in this paper we study in detail the pair production... | pair production of higgs bosons at the lhc in gauged 2hdm |
the proposed news apparatus, a spherical detector with a small central electrode sensor operating as a proportional counter, promises to explore new swaths of the direct detection parameter space in the gev and sub-gev dark matter particle mass range by employing very light nuclear targets, such as h and he, and by tak... | gev dark matter searches with the news detector |
we present a simple model of two dark matter species with opposite millicharge that can form electrically neutral bound states via the exchange of a massive dark photon. if bound state formation is suppressed at low temperatures, a sub-dominant fraction of millicharged particles remains at late times, which can give ri... | on dark atoms, massive dark photons and millicharged sub-components |
plasma dark matter, which arises in dissipative dark matter models, can give rise to large annual modulation signals from kev electron recoils. previous work has argued that the dama annual modulation signal could have an explanation within such a scenario. however, detailed predictions are difficult due to the inheren... | dama annual modulation from electron recoils |
in this paper, as the first part of the third step of our study on developing data analysis procedures for using 3-dimensional information offered by directional direct dark matter detection experiments in the future, we present our double-monte carlo "scattering-by-scattering" simulation of the 3-dimensional elastic w... | monte carlo scattering-by-scattering simulation of 3-dimensional elastic wimp-nucleus scattering events |
dark matter particles may bind with nuclei if there exists an attractive force of sufficient strength. we show that a dark photon mediator of mass $\sim (10 - 100)$ mev that kinetically mixes with standard model electromagnetism at the level of $\sim 10^{-3}$ generates kev-scale binding energies between dark matter and... | low-energy signals from the formation of dark matter-nuclear bound states |
in this paper, as the second part of the third step of our study on developing data analysis procedures for using 3-dimensional information offered by directional direct dark matter detection experiments in the future, we investigate the angular distributions of the recoil direction (flux) and the recoil energy of the ... | simulations of the angular recoil-energy distribution of wimp-scattered target nuclei for directional dark matter detection experiments |
the dama/libra observation of an annual modulation in the detection rate compatible with that expected for dark matter particles from the galactic halo has accumulated evidence for more than twenty years. it is the only hint of a direct detection of the elusive dark matter, but it is in strong tension with the negative... | improving anais-112 sensitivity to dama/libra signal with machine learning techniques |
measuring an annual modulation in a direct dark matter detection experiment is not only a proof of the existence of wimps but can also tell us more about their interaction with standard matter and maybe even their density and velocity in the halo. such a modulation has been measured by the dama/libra experiment in nai(... | sabre: wimp modulation detection in the northern and southern hemisphere |
anais (annual modulation with nal scintillators) is a dark matter direct detection experiment located at the canfranc underground laboratory (lsc), in spain. the goal is to confirm or refute in a model independent way the dama/libra positive result: an annual modulation in the low-energy detection rate compatible with ... | anais-112 status: two years results on annual modulation |
this paper is the first report describing how the concentrations of silicon and boron govern the cryogenic scintillation properties of n-type gaas. it shows that valence band holes are promptly trapped on radiative centers and then combine radiatively with silicon donor band electrons at rates that increase with the de... | how silicon and boron dopants govern the cryogenic scintillation properties of n-type gaas |
aletheia is a newly established dark matter direct detection project that aims at hunting for low-mass wimps. tpb is widely implemented in liquid helium and argon experiments to shift vuv photons to visible light. we first report that we have successfully coated ~ 3 μm tpb on the inner walls of a 10-cm cylindrical ptfe... | coating μm tpb on a cylindrical detector and studying the sample films being cooled to ln and lhe temperatures |
in an extended effective operator framework, we investigate in detail the effects of light mediators on the event spectra of dark matter (dm)-nucleus scatterings. the presence of light mediators changes the interpretation of the current experimental data, especially the determination of dm particle mass. we show by ana... | light mediators in dark matter direct detections |
previous work has argued that, in the framework of plasma dark matter models, the dama annual modulation signal can be consistently explained with electron recoils. in the specific case of mirror dark matter, that explanation requires an effective low velocity cutoff, vc ≳ 30 , 000km /s, for the halo mirror electron di... | shielding of a direct detection experiment and implications for the dama annual modulation signal |
recently it has been proposed that dark matter axions from the galactic halo can produce a small shapiro step-like signal in josephson junctions whose josephson frequency resonates with the axion mass (beck, 2013). here we show that the axion field equations in a voltage-driven josephson junction environment allow for ... | axion mass estimates from resonant josephson junctions |
superfluid $^4$he is a promising target material for direct detection of light ($<$ 1 gev) dark matter. possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. the relative yield of these signals has implications for the sensitivity... | scintillation yield from electronic and nuclear recoils in superfluid $^4$he |
the u(1)x extension of the minimal supersymmetric standard model (mssm) is called as u(1)xssm with the local gauge group su(3)c × su(2)l × u(1)y × u(1)x. u(1)xssm has three singlet higgs superfields beyond mssm. in u(1)xssm, the mass matrix of neutralino is 8 × 8, whose lightest mass eigenstate possesses cold dark matt... | light neutralino dark matter in u(1)xssm |
we consider the classically scale invariant higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. the higgs boson is light near a critical boundary between different symmetry breaking phases, where quantum corrections beyond the usual gildener-weinber... | dark matter-induced multi-phase dynamical symmetry breaking |
the dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood. in this paper, we make a systematic study of the impact of astrophysical uncertainties on electron recoil events at the direct detection experiments with xenon and semic... | halo uncertainties in electron recoil events at direct detection experiments |
we show that the higgsplosion mechanism makes a prediction for the mass and coupling of a wimp-like minimal scalar dark matter model. in particular the currently favoured minimal value for the higgsplosion scale, $e_\mathrm{h}\sim 25$ tev, implies a dark matter mass $m_\mathrm{dm} \sim 1.25$ tev and a moderate quartic ... | a higgsploding theory of dark matter |
over a handful of rotation periods, dynamical processes in barred galaxies induce nonaxisymmetric structure in dark matter halos. using n -body simulations of a milky way-like barred galaxy, we identify both a trapped dark matter component, a shadow bar, and a strong response wake in the dark matter distribution that a... | dynamical response of dark matter to galaxy evolution affects direct-detection experiments |
pandax-ii experiment is a dark matter direct detection experiment using about half-ton of liquid xenon as the sensitive target. the electrical pulses detected by photomultiplier tubes from scintillation photons of xenon are recorded by waveform digitizers. the data acquisition of pandax-ii relies on a trigger system th... | update of the trigger system of the pandax-ii experiment |
we explore the possibility that the discrepancy in the observed anomalous magnetic moment of the muon δaμ and the predicted relic abundance of dark matter by planck data, can be explained in a lepto-philic 2-hdm augmented by a real sm singlet scalar of mass ∼ 10-80 gev. we constrain the model from the observed higgs de... | lepto-philic 2-hdm + singlet scalar portal induced fermionic dark matter |
in dark matter direct detection experiments, neutron is a serious source of background, which can mimic the dark matter-nucleus scattering signals. in this paper, we present an improved evaluation of the neutron background in the pandax-ii dark matter experiment by a novel approach. instead of fully relying on the mont... | an improved evaluation of the neutron background in the pandax-ii experiment |
within the exceptional supersymmetric standard model (e6ssm), we investigate signatures at the large hadron collider (lhc) for a long-lived charged inert higgsino, which is degenerate with the inert neutralino at tree level and a small mass splitting is generated at the loop level, resulting in a lifetime o (0.02 ) nan... | a combined approach to the analysis of space and ground experimental data within a simplified e6ssm |
this study investigates new technology for enhancing the sensitivity of low-mass dark matter detection by analyzing charge transport in a p-type germanium detector at 5.2 k. to achieve low-threshold detectors, precise calculations of the binding energies of dipole and cluster dipole states, as well as the cross section... | development of low-threshold detectors for low-mass dark matter searches with a p-type germanium detector operated at cryogenic temperature |
the extension of the standard model by a real gauge singlet scalar is the simplest but the most studied model with sometimes controversial ideas on the ability of the model to address the dark matter (dm) and the electroweak phase transition (ewpt) issues simultaneously. for this model, we obtain analytically slightly ... | strongly first-order phase transition in real singlet scalar dark matter model |
we study the direct-detection rate for axial-vectorial dark matter scattering off nuclei in an su(2) × u(1) invariant effective theory and compare it against the lhc reach. current constraints from direct detection experiments are already bounding the mediator mass to be well into the tev range for wimp-like scenarios.... | z'-mediated majorana dark matter: suppressed direct-detection rate and complementarity of lhc searches |
in supersymmetric models with dirac neutrinos, the lightest sneutrino can be a good thermal dark matter candidate when the soft sneutrino trilinear parameter is large. in this paper, we focus on scenarios where the mass of the mixed sneutrino lsp is of the order of gev so the sneutrino dark matter is still viable compl... | phenomenological constraints on light mixed sneutrino dark matter scenarios |
despite strong evidence for the existence of large amounts of dark matter (dm) in our universe, there is no direct indication of its presence in our own solar system. all estimates of the local dm density rely on extrapolating results on much larger scales. we demonstrate for the first time the possibility of simultane... | measuring the local dark matter density in the laboratory |
theories where a fermionic dark matter candidate interacts with the standard model through a vector mediator are often studied using minimal models, which are not necessarily anomaly-free. in fact, minimal anomaly-free simplified models are usually strongly constrained by either direct detection experiments or collider... | whac-a-constraint with anomaly-free dark matter models |
we analyze a model with unbroken u(1) b - l gauge symmetry where neutrino masses are generated at one loop, after spontaneous breaking of a global u(1)g symmetry. these symmetries ensure dark matter (dm) stability and the diracness of neutrinos. within this context, we examine fermionic dark matter. consistency between... | phenomenology of fermion dark matter as neutrino mass mediator with gauged b-l |
we study the possibility that dark radiation, sourced through the decay of dark matter in the late universe, carries electromagnetic interactions. the relativistic flux of particles induces recoil signals in direct detection and neutrino experiments through its interaction with millicharge, electric/magnetic dipole mom... | terrestrial probes of electromagnetically interacting dark radiation |
we consider a simple renormalizable dark matter model consisting of two real scalars with a mass splitting δ , interacting with the sm particles through the higgs portal. we find a viable parameter space respecting all the bounds imposed by invisible higgs decay experiments at the lhc, the direct detection experiments ... | scalar split wimps in future direct detection experiments |
the qcd axion is a particle postulated to exist since the 1970s to explain the strong-cp problem in particle physics. it could also account for all of the observed dark matter in the universe. the axion resonant interaction detection experiment (ariadne) intends to detect the qcd axion by sensing the fictitious 'magnet... | a method for controlling the magnetic field near a superconducting boundary in the ariadne axion experiment |
reconstructing the position of an interaction for any dual-phase time projection chamber (tpc) with the best precision is key to directly detecting dark matter. using the likelihood-free framework, a new algorithm to reconstruct the 2-d (x,y) position and the size of the charge signal (e) of an interaction is presented... | machine learning accelerated likelihood-free event reconstruction in dark matter direct detection |
the xenon1t experiment aims for the direct detection of dark matter in a cryostat filled with 3.3 tons of liquid xenon. in order to achieve the desired sensitivity, the background induced by radioactive decays inside the detector has to be sufficiently low. one major contributor is the $\beta$-emitter $^{85}$kr which i... | removing krypton from xenon by cryogenic distillation to the ppq level |
direct detection experiments aim at the detection of dark matter in the form of weakly interacting massive particles (wimps) by searching for signals from elastic dark matter nucleus scattering. additionally, inelastic scattering in which the nucleus is excited is expected from nuclear physics and provides an additiona... | inelastic dark matter nucleus scattering |
we give a review on the simp paradigm and discuss a consistent model for simp dark mesons in the context of a dark qcd with flavor symmetry. the z'-portal interaction is introduced being compatible with stable dark mesons and is responsible for making the simp dark mesons remain in kinetic equilibrium with the sm durin... | models for simp dark matter and dark photon |
we propose a simple non-supersymmetric grand unified theory (gut) based on the gauge group s o (10 ) ×u (1) ψ . the model includes 3 generations of fermions in 16 (+1 ), 10 (-2 ) and 1 (+4 ) representations. the 16 -plets contain standard model (sm) fermions plus right-handed neutrinos, and the 10 -plet and the singlet... | inflation, proton decay, and higgs-portal dark matter in s o (10 ) ×u (1) ψ |
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