abstract stringlengths 3 192k | title stringlengths 4 857 |
|---|---|
dark matter (dm) direct detection experiments which are directionally-sensitive may be the only method of probing the full velocity distribution function (vdf) of the galactic dm halo. we present an angular basis for the dm vdf which can be used to parametrise the distribution in order to mitigate astrophysical uncerta... | discretising the velocity distribution for directional dark matter experiments |
one trend in dark matter direct detection is the development of techniques which will lower experimental thresholds and achieve sensitivity to light mass dark matter particles. in doing so, it is necessary to have an understanding of the low energy spectrum of the major background components. geant4 has a number of spe... | low energy background spectrum in cdmslite |
we study the compatibility of the observed dama modulation signal with inelastic scattering of dark matter (dm) off of the 0.1% thallium (tl) dopant in dama. in this work we test whether there exist regions of parameter space where the tl interpretation gives a good fit to the most recent data from dama, and whether th... | inelastic dark matter scattering off thallium cannot save dama |
new experiments with spheres-gas (news-g) is a dark matter direct detection experiment that will operate at snolab (canada). similar to other rare-event searches, the materials used in the detector construction are subject to stringent radiopurity requirements. the detector features a 140-cm diameter proportional count... | copper electroplating for background suppression in the news-g experiment |
detectors for direct dark matter search using noble gases in the liquid phase as a detection medium need to be coupled to liquefaction, purification and recirculation systems. a dedicated cryogenic system has been assembled and operated at the infn-naples cryogenic laboratory with the aim to liquefy and purify the argo... | a versatile cryogenic system for liquid argon detectors |
cosinus (cryogenic observatory for signatures seen in next-generation underground searches) is an experiment employing cryogenic calorimeters, dedicated to direct dark matter search in underground laboratories. its goal is to cross-check the annual modulation signal the dama collaboration has been detecting for about 2... | cosinus: cryogenic calorimeters for the direct dark matter search with nai crystals |
we study the dark matter (dm) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the cdms-si signals and null experiments. in the light of the new updates of the lux and cdmslite data, w... | direct detection of exothermic dark matter with light mediator |
we study a model that extends the georgi-machacek model by the addition of an inert doublet, $\phi_2$. this allows for the model to contain a natural dark matter candidate, $h^0$. for a number of benchmark points at two dm candidate masses ($m_{h^0} \in \{70,\,250\}$ gev), we determine the relic abundance, direct detec... | dark matter in the georgi-machacek model with an additional inert doublet |
open quantum systems with chiral interactions can be realized by coupling atoms to guided radiation modes in waveguides or optical fibres. in their steady state these systems can feature intricate many-body phases such as entangled dark states, but their detection and characterization remains a challenge. here we show ... | dynamical creation and detection of entangled many-body states in a chiral atom chain |
the observed higgs signal at the large hadron collider (lhc) may be derived from the two mass-degenerate resonances. we investigate this scenario in the next-to-minimal supersymmetric standard model (nmssm) in which both the two lightest cp-even higgs bosons have masses around 125 gev. we perform a comprehensive scan o... | mass-degenerate higgs bosons near 125 gev in the nmssm under current experimental constraints |
experimental collaborations for the large hadron collider conducted various searches for supersymmetry. in the absence of signals, lower limits were put on sparticle masses but usually within frameworks with (over-)simplifications relative to the entire indications by supersymmetry models. for complementing current int... | future prospects for the minimal supersymmetric standard model |
in this work we introduce rapidd, a surrogate model that speeds up the computation of the expected spectrum of dark matter particles in direct detection experiments. rapidd replaces the exact calculation of the dark matter differential rate (which in general involves up to three nested integrals) with a much faster par... | surrogate models for direct dark matter detection |
in the absence of direct accelerator data to constrain particle models, and given existing astrophysical uncertainties associated with the phase space distribution of wimp dark matter in our galactic halo, extracting information on fundamental particle microphysics from possible signals in underground direct detectors ... | extracting particle physics information from direct detection of dark matter with minimal assumptions |
we demonstrate that dark matter particles gravitationally bound to the earth can induce a characteristic nuclear recoil signal at low energies in direct detection experiments. the new spectral feature that we predict can provide a complementary verification of dark matter discovery at experiments with positive signal b... | new spectral features from bound dark matter |
we present a new focus point supersymmetry-breaking scenario based on the supersymmetric e_7 nonlinear sigma model. in this model, squarks and sleptons are identified with (pseudo) nambu-goldstone bosons. their masses are generated only radiatively through gauge and yukawa interactions, and they are much smaller than t... | seminatural susy from the e7 nonlinear sigma model |
assuming that dark matter (dm) is made of fermions in the sub-gev mass range with interactions dominated by electromagnetic moments of higher order, such as the electric and magnetic dipoles or the anapole moment, we show that direct detection experiments searching for atomic ionisation events in xenon targets can shed... | rejecting the majorana nature of dark matter with electron scattering experiments |
the search for a novel technology able to detect and reconstruct nuclear recoil events in the kev energy range has become more and more important as long as vast regions of high mass wimp-like dark matter candidate have been excluded. gaseous time projection chambers (tpc) with optical readout are very promising candid... | identification of low energy nuclear recoils in a gas tpc with optical readout |
we investigate the effect of a first-order electroweak phase transition (foewpt), which is one of the prerequisites for electroweak baryogenesis, on the thermal relic abundance of the dark matter (dm) that freezes out before the phase transition occurs in the complex singlet scalar extended $z_3$-invariant type-ii sees... | dilution of dark matter relic abundance due to first order electroweak phase transition in the singlet scalar extended type-ii seesaw model |
this paper reports the design and experimental results from the characterization of an integrated circuit developed for the readout of the x-ray spectrometer and tracking system of the general antiparticle spectrometer (gaps) balloon mission. gaps will search for an indirect signature of dark matter through the detecti... | a mixed-signal processor for x-ray spectrometry and tracking in the gaps experiment |
the comparison of the results of direct detection of dark matter, obtained with various target nuclei, requires model-dependent, or even arbitrary, assumptions. indeed, to draw conclusions either the spin-dependent (sd) or the spin-independent (si) interaction has to be neglected. in the light of the null results from ... | extracting constraints from direct detection searches of supersymmetric dark matter in the light of null results from the lhc in the squark sector |
we study the effect of gravitational focusing of the earth on dark matter. we find that the effect can produce a detectable diurnal modulation in the dark matter signal for part of the parameter space which for high dark matter masses is larger than the diurnal modulation induced by the fluctuations in the flux of dark... | daily modulation and gravitational focusing in direct dark matter search experiments |
newsdm [nuclear emulsions for wimp (weakly interacting massive particles) search—directional measurement] is a new international experiment in which a photoemulsion target is used for a direct detection of dark-matter particles. in this experiment, the detection method is based on fixing the directions of trajectories ... | new experiment newsdm for direct searches for heavy dark matter particles |
we study the properties and direct detection prospects of an as of yet neglected population of dark matter (dm) particles moving in orbits gravitationally bound to the earth. this dm population is expected to form via scattering by nuclei in the earth's interior. we compute fluxes and nuclear recoil energy spectra expe... | direct detection of dark matter bound to the earth |
several searches for dark matter have been performed by the cms and atlas collaborations, using proton-proton collisions with a center-of-mass energy of 13 tev produced by the large hadron collider. different signatures may highlight the presence of dark matter: the imbalance in the transverse momentum in an event due ... | collider searches for dark matter (atlas + cms) |
we show that models of strongly interacting (simp) dark matter built to reproduce the dama signal actually cannot account for its time dependence. we discuss the constraints on this type of models coming from direct detection experiments and study the propagation of thermalised dark matter particles in the ground for t... | strongly interacting dark matter and the dama signal |
scintillator doped with a high neutron-capture cross-section material can be used to detect neutrons via their resulting gamma rays. examples of such detectors using liquid scintillator have been successfully used in high-energy physics experiments. however, a liquid scintillator can leak and is not as amenable to modu... | characterization of gadolinium-loaded plastic scintillator for use as a neutron veto |
we show how the material used in direct detection experiments of dark matter (dm), in the presence of a signal of it, can afford one with the possibility of extracting the nature of the underlying candidate. we do so for the case of a u(1) ' supersymmetric standard model (ussm) of e6 origin, by exploiting benchmark poi... | characterisation of dark matter in direct detection experiments: singlino versus higgsino |
we present a detailed analysis of the effect of an observationally determined dark matter (dm) velocity distribution function (vdf) of the milky way (mw) on dm direct detection rates. we go beyond local kinematic tracers and use rotation curve data up to 200 kpc to construct a mw mass model and self-consistently determ... | observationally inferred dark matter phase-space distribution and direct detection experiments |
in the present work, we study the atomic compton scattering that could have a great impact on dark matter direct detection experiments. we give a quantitative analysis of the compton scattering energy spectrum for si and ge atomic systems. the theoretical results on compton scattering are calculated within the framewor... | compton scattering energy spectrum for si and ge systems |
pseudo nambu-goldstone bosons (pngbs) are attractive dark matter (dm) candidates, since they couple to the standard model (sm) predominantly through derivative interactions. thereby they naturally evade the strong existing limits inferred from dm direct detection experiments. working in an effective field theory that i... | searching for pseudo nambu-goldstone boson dark matter production in association with top quarks |
updating a previous analysis where we used elastic nuclear recoils we study the migdal effect to extend to low wimp masses the direct detection bounds to operators up to dimension 7 of the relativistic effective field theory describing wimp interactions with quarks and gluons. to this aim we include in our analysis the... | low-mass extension of direct detection bounds on wimp-quark and wimp-gluon effective interactions using the migdal effect |
we present the first search for dark matter-induced delayed coincidence signals in a dual-phase xenon time projection chamber, using the 224.6 live days of the xenon100 science run ii. this very distinct signature is predicted in the framework of magnetic inelastic dark matter which has been proposed to reconcile the m... | search for magnetic inelastic dark matter with xenon100 |
in this work we show how the inclusion of dark matter (dm) direct detection upper bounds in a theoretically consistent manner can affect the allowed parameter space of a dm model. traditionally, the limits from dm direct detection experiments on the elastic scattering cross section of dm particles as a function of thei... | on the importance of direct detection combined limits for spin independent and spin dependent dark matter interactions |
the darkside experiment is designed for the direct detection of dark matter with a double phase liquid argon tpc operating underground at laboratori nazionali del gran sasso. the tpc is placed inside a 30 tons liquid organic scintillator sphere, acting as a neutron veto, which is in turn installed inside a 1 kt water c... | direct search for dark matter with darkside |
assuming that dark matter (dm) efficiently clusters on various scales we analyse the possible impact on direct dm searches. for certain sizes and densities of dm clusters, mutual detector-cluster encounters may occur only once a year or every several years leading to the apparent failure of individual experiments searc... | dark matter clusters and time correlations in direct detection experiments |
we consider the special case that the dark matter (dm) candidate is not detected in direct-detection programs when the experimental sensitivity reaches the neutrino flux background. in such circumstance the dm searches at the colliders impose constraints on the dm relic abundance if the dm candidate is a wimps type. sp... | measuring relic abundance of minimal dark matter at hadron colliders |
we study the phenomenology of a model that addresses the neutrino mass, dark matter, and generation of the electroweak scale in a single framework. electroweak symmetry breaking is realized via the coleman-weinberg mechanism in a classically scale invariant theory, while the neutrino mass is generated radiatively throu... | dark matter and lhc phenomenology of a scale-invariant scotogenic model |
a light scalar field framework of dark energy, sometimes referred to as quintessence, introduces a fifth force between normal matter objects. screening mechanisms, such as the chameleon model, allow the scalar field to be almost massless on cosmological scales while simultaneously evading laboratory constraints. we exp... | searching for chameleon dark energy with mechanical systems |
it has recently been demonstrated that, in the event of a putative signal in dark matter direct detection experiments, properly identifying the underlying dark matter-nuclei interaction promises to be a challenging task. given the most optimistic expectations for the number counts of recoil events in the forthcoming ge... | prospects for distinguishing dark matter models using annual modulation |
we examine the impact of the expected reach of the lhc and the xenon1t experiments on the parameter space of the minimal classically scale invariant extension of the standard model (sm), where all the mass scales are induced dynamically by means of the coleman-weinberg mechanism. in this framework, the sm content is en... | prospects for discovering the higgs-like pseudo-nambu-goldstone boson of the classical scale symmetry |
the use of simplified models as a tool for interpreting dark matter collider searches has become increasingly prevalent, and while early run ii results are beginning to appear, we look to see what further information can be extracted from the run i dataset. we consider three `standard' simplified models that couple qua... | collide and conquer: constraints on simplified dark matter models using mono-x collider searches |
we explore the sparticle spectroscopy of the supersymmetric su(5) model with non-universal gaugino masses in light of latest experimental searches. we assume that the gaugino mass parameters are independent at the gut scale. we find that the observed deviation in the anomalous magnetic moment of the muon can be explain... | su(5) with non-universal gaugino masses |
we describe the electronics and data acquisition system used in the first phase of the pandax experiment—a 120 kg dual-phase liquid xenon dark matter direct detection experiment in the china jin-ping underground laboratory. this system utilized 180 channels of commercial flash adc waveform digitizers. during the entire... | the electronics and data acquisition system for the pandax-i dark matter experiment |
we present a calculation of the next-to-leading order qcd corrections for the scattering of dark matter particles off nucleons in the framework of simplified models with s- and t-channel mediators. these results are matched to the wilson coefficients and operators of an effective field theory that is generally used for... | direct detection of dark matter: precision predictions in a simplified model framework |
the quantum size effect (qse) studies of metallic and semiconductor nanoparticles have received considerable attention for their applications in superconductivity, visible light emission, quantum dot devices and industrial catalysts. the qse properties of semiconductor agbr nanoparticles have been thoroughly characteri... | studies of silver bromide clusters isotopic properties and their applications |
dark matter axions, particles whose hypothesized existence could resolve two of the largest outstanding mysteries in physics, are made difficult to detect by their extremely feeble coupling to ordinary matter. the axion haloscope, first realized experimentally three decades ago, remains among the most viable detection ... | enhancing the scan rate for axion dark matter: quantum noise evasion and maximally informative analysis |
chiral effective field theory allows one to calculate the response of few-nucleon systems to external currents, both for currents that can be probed in the standard model and ones that only exist in standard-model extensions. in combination with state-of-the-art many-body methods, the constraints from chiral symmetry c... | dark-matter-nucleus scattering in chiral effective field theory |
we investigate an electroweak interacting dark matter (dm) model in which the dm is the neutral component of the su(2)l triplet fermion that couples to the standard model (sm) higgs sector via an sm singlet higgs boson. in this setup, the dm can have a cp-violating coupling to the singlet higgs boson at the renormaliza... | electroweak interacting dark matter with a singlet scalar portal |
we consider a minimal natural supersymmetric model based on an extra dimension with supersymmetry breaking provided by the scherk-schwarz mechanism. the lightest supersymmetric particle is a neutral, quasi-dirac higgsino and, unlike in previous studies, we assume that all standard model fields are propagating in the bu... | higgsino dark matter in an economical scherk-schwarz setup |
we show that compatibility between the dama modulation result (as well as less statistically significant excesses such as the cdms silicon effect and the excess claimed by cresst) with constraints from other experiments can be achieved by extending the analysis of direct detection data beyond the standard elastic scatt... | new approaches in the analysis of dark matter direct detection data: scratching below the surface of the most general wimp parameter space |
studying the structure of nucleons is not only important to understanding the strong interactions of quarks and gluons, but also to improving the precision of new-physics searches. since a broad class of experiments, including the lhc and dark-matter detection, require standard-model backgrounds with parton distributio... | from c to parton sea: bjorken-x dependence of the pdfs |
using the existing simplified model framework, we build several dark matter models which have suppressed spin-independent scattering cross section. we show that the scattering cross section can vanish due to interference effects with models obtained by simple combinations of simplified models. for weakly interacting ma... | blind spots for direct detection with simplified dm models and the lhc |
we report a systematic study on the directional sensitivity of a direct dark matter detector that detects the polar angle of a recoiling nucleus. a weakly interacting massive particle (wimp)-mass independent method is used to obtain the sensitivity of a general detector in an isothermal galactic dark matter halo. by us... | directional dark matter by polar angle direct detection and application of columnar recombination |
the sensitivity of the direct detection of dark matter (dm) approaches the so-called neutrino floor, below which it is difficult to disentangle the dm candidate from the neutrino background. in this work, we consider the scenario that no dm signals are reported in various dm direct detection experiments and explore whe... | dark matter search at colliders and neutrino floor |
models of nuclear dark matter propose that the dark sector contains large composite states consisting of dark nucleons in analogy to standard model nuclei. we examine the direct detection phenomenology of a particular class of nuclear dark matter model at the current generation of tonne-scale liquid noble experiments, ... | can tonne-scale direct detection experiments discover nuclear dark matter? |
we examine the question to what extent prospective detection of dark matter by direct and indirect- detection experiments could shed light on what fraction of dark matter was generated thermally via the freeze-out process in the early universe. by simulating putative signals that could be seen in the near future and us... | towards understanding thermal history of the universe through direct and indirect detection of dark matter |
direct detection experiments are still one of the most promising ways to unravel the nature of dark matter. to fully understand how well these experiments constrain the dark matter interactions with the standard model particles, all the uncertainties affecting the calculations must be known. it is especially critical n... | uncertainties on the eft coupling limits for direct dark matter detection experiments stemming from uncertainties of target properties |
some theoretical and experimental aspects regarding the direct dark matter field are mentioned. in particular some arguments, which play a relevant role in the evaluation of model-dependent interpretations of experimental results and in comparisons, are shortly addressed. | on corollary model-dependent analyses and comparisons |
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 ∼(10 -100 ) mev that kinetically mixes with standard model electromagnetism at the level of ∼10-3 generates kev-scale binding energies between dark matter and heavy elements... | low-energy signals from the formation of dark-matter-nucleus bound states |
we study the self conjugate dark matter (dm) particles interacting primarily with the standard model leptons in an effective field theoretical frame work. we consider sm gauge invariant effective contact interactions between the majorana fermion, real scalar and a real vector dm with leptons by evaluating the wilson co... | effective field theory approach to lepto-philic self conjugate dark matter |
no dark matter particles have been observed by two of the world's most sensitive direct-detection experiments, casting doubt on a favored dark matter model. | dark matter still at large |
the study of dark matter, in both astrophysics and particle physics, has emerged as one of the most active and exciting topics of research in recent years. this book reviews the history behind the discovery of missing mass (or unseen mass) in the universe, and ties this into the proposed extensions to the standard mode... | dark matter in the universe |
the lux (large underground xenon) experiment aims at the direct detection of dark matter particles via their collisions with xenon nuclei. the 370 kg two-phase liquid xenon time projection chamber measures simultaneously the scintillation and ionization from interactions in the target. the ratio of these two signals pr... | results from the lux dark matter experiment |
scintillating calorimeters are cryogenic detectors combining a measurement of scintillation with one of phonons to provide particle identification. in view of developing alkali halide devices of this type able to check the dama/libra claim for the observation of dark matter, we have simulated detector performances to d... | sensitivity of alkali halide scintillating calorimeters with particle identification to investigate the dama dark matter detection claim |
we propose to accommodate economically the type-ii neutrino seesaw mechanism in (g)nmssm from gmsb and amsb, respectively. the heavy triplets within neutrino seesaw mechanism are identified to be the messengers. therefore, the μ -problem, the neutrino mass generation, lfv as well the soft susy breaking parameters can b... | type-ii neutrino seesaw mechanism extension of nmssm from susy breaking mechanisms |
new-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 ev, much lower than the energies of commonly used x-ray calibration sources. this requires new calibration sources with sub-kev energies. when searching for nuclear recoil signals, the calibration source shou... | observation of a low energy nuclear recoil peak in the neutron calibration data of the cresst-iii experiment |
ample evidence has been gathered demonstrating that the majority of the mass in the universe is composed of non-luminous, non-baryonic matter. though the evidence for dark matter is unassailable, its nature and properties remain unknown. a broad effort has been undertaken by the physics community to detect dark-matter ... | sabre: a search for dark matter and a test of the dama/libra annual-modulation result using thallium-doped sodium-iodide scintillation detectors |
the sensitivity of rare event physics experiments like neutrino or direct dark matter detection crucially depends on the background level. a significant background contribution originates from the primordial actinides thorium (th) and uranium (u) and the progenies of their decay chains. the applicability of ultra-sensi... | ultrasensitive detection method for primordial nuclides in copper with accelerator mass spectrometry |
the xenon1t experiment is the first ton-scale dual-phase (liquid-gas) xenon time projection chamber, currently in operation at the laboratori nazionali del gran sasso in italy. the experiment aims at the dark matter direct detection exploiting a ∼2000 kg mass of liquid xenon as a target for interactions of weakly inter... | first dark matter search results of the xenon1t experiment |
the dama/libra observation of an annual modulation in the detection rate compatible with that expected for dark matter is one of the most puzzling results in the present particle physics scenario. this signal is in strong tension with the negative results of other experiments. however, until recently a direct compariso... | dark matter annual modulation with anais-112: three years results |
we explore the sparticle spectroscopy of the supersymmetric su(5) model with nonuniversal gaugino masses in light of latest experimental searches. we assume that the gaugino mass parameters are independent at the gut scale. we find that the observed deviation in the anomalous magnetic moment of the muon can be explaine... | su(5) with nonuniversal gaugino masses |
in this book, the anomaly mediated supersymmetry breaking (amsb) model is explored by searching for charged winos with their subsequent decays collected with the atlas detector at the large hadron collider (lhc). the author develops a new method, called "re-tracking," to detect charged winos that decay before reaching ... | search for charginos nearly mass-degenerate with the lightest neutralino: based on a disappearing-track signature in pp collisions at √s = 8 tev |
the dmdd package enables simple simulation and bayesian posterior analysis of recoil-event data from dark-matter direct-detection experiments under a wide variety of scattering theories. it enables calculation of the nuclear-recoil rates for a wide range of non-relativistic and relativistic scattering operators, includ... | dmdd: dark matter direct detection |
sterile neutrinos in the kev mass range may constitute the galactic dark matter. various proposed direct detection and laboratory searches are reviewed. the most promising method in the near future is complete energy-momentum reconstruction of individual beta-decay or k-capture events, using atoms suspended in a magnet... | proposed experiments to detect kev range sterile neutrinos using energy-momentum reconstruction of beta decay or k-capture events |
we study a two-component dark matter model consisting of a dirac fermion and a complex scalar charged under new u(1) gauge group in the hidden sector. the dark fermion plays the dominant component of dark matter which explains the measured dm relic density of the universe. it has no direct coupling to ordinary standard... | phenomenology of a two-component dark matter model |
the naturally occurring radioisotope 32si represents a potentially limiting background in future dark matter direct-detection experiments. we investigate sources of 32si and the vectors by which it comes to reside in silicon crystals used for fabrication of radiation detectors. we infer that the 32si concentration in c... | naturally occurring 32si and low-background silicon dark matter detectors |
the presence of dark matter (dm), though well established by indirect evidence, is yet to be observed directly. various dm detection experiments running for several years have yielded no positive results. in view of these negative results, we had earlier proposed alternate models by postulating a minimum gravitational ... | mong: an extension to galaxy clusters |
the application of very low background techniques has a great importance in deep underground experiments devoted to the investigation of the dark matter (dm) particles and of other rare processes. in this paper, some related arguments are addressed mainly considering their crucial role in case of inorganic crystal scin... | adopted low background techniques and analysis of radioactive trace impurities |
radiatively-driven natural supersymmetry, a theoretically and experimentally well-motivated framework, centers around the predicted existence of four light, nearly mass-degenerate higgsinos with mass $\sim 100-200$ gev (not too far above $m_z$). the small mass splittings amongst the higgsinos, typically 4-20 gev, resul... | naturalness and light higgsinos: why ilc is the right machine for susy discovery |
the direct detection of dark matter constituents, in particular the weakly interacting massive particles (wimps), is central to particle physics and cosmology. in this paper we study transitions to the excited states, possible in some nuclei, which have sufficiently low lying excited states. examples considered previou... | theoretical direct wimp detection rates for transitions to the first excited state in 83kr |
weak scale supersymmetry (susy) remains a prime explanation for the radiative stability of the higgs field. a natural account of the higgs boson mass, however, strongly favors extensions of the minimal supersymmetric standard model (mssm). a plausible option is to introduce a new supersymmetric sector coupled to the ms... | the dark side of electroweak naturalness beyond the mssm |
finding signatures of dark matter in transport characteristics of solids would be an important step on the road to detect this illusive component of the mass of our universe. this is especially important and timely as the experiments designed to directly detect dark matter particles continue to provide negative results... | chiral kinetic theory in the presence of dark photon |
astaroth is a novel r&d project which aims at improving the physics reach of future direct dark matter detection experiments based on nai(tl) scintillating crystals. there is a strong need to test the long standing dama positive observation of an annual modulation that could be due to dark matter (dm), with the sam... | the astaroth project: enhanced low-energy sensitivity to dark matter annual modulation |
the picasso and coupp collaborations use superheated liquid detectors to search for cold dark matter through the direct detection of weakly interacting massive particles (wimps). these experiments, located in the underground laboratory of snolab, canada, detect phase transitions triggered by nuclear recoils in the kev ... | picasso, coupp and pico - search for dark matter with bubble chambers |
neutrons are a particularly dangerous background for direct wimp dark matter searches; their nuclear recoils with the target nuclei are often indistinguishable from nuclear recoils produced by wimp-nuclear collisions. in this study, we explore the concept of a liquid scintillator neutron veto detector that would allow ... | a prototype neutron veto for dark matter detectors |
recent results from direct detection experiments such as lux, pandax-ii and xenon100 have imposed severe constraints on the multi-gev mass window in various dark matter (dm) models. however, many of these experiments are not sensitive to mev scale dm as the corresponding recoil energies are, largely, lower than the det... | model independent analysis of mev scale dark matter |
we consider the possibility of a gravitational wave signal in an asymmetric dark matter model. in this model a generative sector produces both the baryon asymmetry and a dark matter asymmetry in a strong first-order phase transtion. bubble collisions during the phase transition lead to sound waves in the plasma which a... | generation of asymmetric dark matter and gravitational waves |
we present a detection scheme to search for qcd axion dark matter, that is based on a direct interaction between axions and electrons explicitly predicted by dfsz axion models. the local axion dark matter field shall drive transitions between zeeman-split atomic levels separated by the axion rest mass energy $m_a c^2$.... | laser induced fluorescence for axion dark matter detection: a feasibility study in ylif$_4$:er$^{3+}$ |
a number of proposed experiments aimed at dark matter studies are based on detection of luminescence in liquid argon at 128 nm. existing solid-state photomultipliers do not have the capability to detect emission at 128 nm in the photon counting mode. spectral properties of a new silicon photomultiplier prototype for va... | sipm prototype for direct vuv registration |
the most successful class of direct detection of wimps with masses from few gev/c2 to tev/c2 have utilized liquid xenon time projection chambers (tpcs). the xenon project adopted dual phase tpcs using ultra-pure liquid xenon as both target and detection medium for wimps. the first ton-scale liquid xenon based tpc, xeno... | latest results from the xenon1t experiment |
the effective field theory (eft) for dark matter (dm) has been widely used to investigate dark matter detection in both theoretical prediction and experimental analysis. to form a complete basis of effective operators for dirac dm eft at dimension seven, eight new four-fermion operators with a derivative in dm currents... | constraints on dimension-seven operators with a derivative in effective field theory for dirac dark matter |
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... | good news for gev dark matter searches |
detection of uv photons is becoming increasingly necessary with the use of noble gases and liquids in elementary particle experiments. cerenkov light in crystals and glasses, scintillation light in neutrino, dark matter, and rare decay experiments all require sensitivity to uv photons. new sensor materials are needed t... | enhanced uv light detection using wavelength-shifting properties of silicon nanoparticles |
we consider scenarios where dark matter (dm) particles carry baryon and/or lepton numbers, which can be defined if there exist operators connecting the dark to the visible sector. as a result, the dm fields become intimately linked to the standard model (sm) ones and can be maximally asymmetric just like the ordinary m... | sharing but not caring: dark matter and the baryon asymmetry of the universe |
charged particles scattering on moving inhomogenities of the magnetised interstellar medium can gain energy through the process of second-order fermi acceleration. this energy gain depletes in turn the magnetic wave spectrum around the resonance wave-vector k~ 1/rl, where rl is the larmor radius of the charged particle... | reacceleration of charged dark matter |
the dark matter problem is one of the most pressing problems in modern physics. as there is no well-established claim from a direct detection experiment supporting the existence of the illusive dark matter that has been postulated to explain the flat rotation curves of galaxies, and since the whole issue of an alternat... | can a tensorial analogue of gravitational force explain away the galactic rotation curves without dark matter? |
we examine the leptophilic two-higgs-doublet model with fermionic dark matter, considering the range of experimental constraints on the higgs sector. the measurements of the 125 gev higgs from the lhc run i allow us to focus on those remaining processes that may play an important role at colliders. we find that the lep... | dark matter in leptophilic higgs models after the lhc run i |
the current results of direct dark matter searches are controversial. the long-standing dark-matter claim from the dama/libra collaboration is excluded by null-results of several other experiments. however, a comparison of the results by experiments with different detector materials introduces model dependencies. the r... | the cosinus project: development of new nai-based cryogenic detectors for direct dark matter search |
we review the interplay between collider searches for vector-like quarks and dark matter direct detection experiments in composite higgs models. with focus on a future 100 tev collider, we also extend previous analyses to improve the reach for heavy quarks in the low mass region. | interplay between collider searches for vector-like quarks and dark matter searches in composite higgs models |
in this paper, we revisit the expressions for the (double) differential event rates for elastic wimp-nucleus scattering and discuss some unusual thoughts on (the incompleteness of) the uses of these expressions in (directional) direct dark matter detection physics. several not-frequently mentioned (but important) issue... | some thoughts on (the incompleteness of) the (double) differential event rates for elastic wimp-nucleus scattering in (directional) direct dark matter detection physics |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.