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at the quantum level, an interaction of a neutrino with a graviton may trigger the collapse of the neutrino flavor eigenstate to a neutrino mass eigenstate. i will present that such an essentially quantum gravity effect may have strong consequences for neutrino oscillation phenomena in astrophysics due to the relativel... | the effect of quantum gravity on astrophysical neutrino flavor observables |
compact object mergers involving at least one neutron star can produce short-lived black hole accretion engines. over tens to hundreds of milliseconds such an engine consumes a disk of hot, nuclear-density fluid, and drives changes to its surrounding environment through luminous emission of neutrinos. the neutrino emis... | a model for neutrino emission from nuclear accretion disks |
the modification of neutrino flavor oscillation probabilities in the presence of ambient neutrino gas is non-linear in nature. this leads to interesting phenomenology that is not well understood. in this paper we study the effect of removing spatial symmetry in a simplified two dimensional toy model. we focus on the li... | collective neutrino oscillations in two dimensions |
in this report we show that neutrino mixing is intrinsically contained in connes’ noncommutatives pectral geometry construction, thanks to the introduction of the doubling of algebra, which is connected to the bogoliubov transformation. it is known indeed that these transformations are responsible for the mixing, turni... | noncommutative spectral geometry, bogoliubov transformations and neutrino oscillations |
features of the dune deep underground neutrino accelerator experiment will enable scientists to complete the studying of three-flavor neutrino oscillations within the extended standard model. in this paper, it is considered how sensitive dune will be to the determination of weakly measured or almost unknown neutrino os... | deep underground neutrino experiment dune—calculation of sensitivity to the measurement of oscillation parameters |
we have considered a model, originally proposed by ma and wegman, where the mixing pattern in neutrino sector is explained with three higgs doublets, six higgs triplets and a4 symmetry. the mixing pattern is explained with the help of vacuum expectation values (vevs) of the above mentioned doublets and triplets. in ord... | analyses of scalar potential and lepton flavor violating decays in a model with a4 symmetry |
we present a new approach to probe flavor-changing neutral-current non-standard neutrino interaction parameter ɛμτ using the oscillation dip and valley features. we use the simulated up/down ratio of reconstructed muons events at the proposed iron calorimeter (ical) detector at the india-based neutrino observatory to d... | exploring nsi using oscillation dip and valley in atmospheric neutrino experiments |
neutrinos produced fromgamma -ray bursts (grbs) carry significant physical information. the electron density in the grbs outflow is very large. in this study, we calculate the matter effect on neutrinos when they propagate through such a dense region. the average survival probability and the flavor ratio of neutrinos a... | matter effects and coherent effect of neutrinos produced from{{gamma}} -ray bursts |
understanding the physics of neutrinos is of paramount relevance for the development of high energy physics, cosmology and astrophysics, thanks to their characteristics and phenomenology. in particular, the property of changing flavor while neutrinos travel, the so-called neutrino oscillation phenomenon, provides us wi... | recent results from long-baseline neutrino experiments |
the deep underground neutrino experiment (dune) is a dual-site experiment for long-baseline neutrino oscillation studies and for neutrino astrophysics and nucleon decay searches. the far detector of dune will consist of four 10 kt liquid argon time-projection-chambers (lar tpc) placed in the sanford underground researc... | supernova neutrino detection in the deep underground neutrino experiment |
in this talk, i give an overview on recent theoretical and phenomenological studies of massive neutrinos. first of all, the present status of neutrino mixing parameters is summarized. the phenomenology of neutrino oscillations is then discussed, and current understanding of lepton flavor mixing is presented. finally, i... | overview on neutrino theory and phenomenology |
despite making predictions in unprecedented agreement with experiment, such as the magnetic dipole moment of the electron to one part in a billion, the experimental confirmation of neutrino flavor oscillations, and thus of massive neutrinos, implies that the standard model (sm) of particle physics is incomplete. an ext... | minimal realistic su(5) grand unified theory |
in this talk, we discuss a way of establishing lepton flavor violation (lfv) at the large hadron collider(lhc). the existence of massive right-handed neutrinos can explain neutrino oscillations via the seesaw mechanism and can induce a sizeable lfv in low energy supersymmetry. we use χ ∼20 - χ ∼10 -τ∼1 system to study ... | flavor violation at the lhc |
we propose a two-loop induced radiative neutrino model with hidden gauged u (1 ) symmetry, in which dark matter of dirac fermions arises. the relic density gets a contribution from annihilation and semiannihilation due to a residual z3 parity. after imposing the requirement of neutrino oscillation data and lepton flavo... | radiative neutrino model with semiannihilating dark matter |
tri-bimaximal mixing (tbm) in the neutrino sector has been obtained in constrained sequential dominance where the yukawa couplings of righ-handed neutrinos have some particular structure. current neutrino oscillation data suggests that neutrino mixing should deviate from tbm mixing pattern. to explain it, we propose a ... | deviation from tri-bimaximal mixing as a result of modification of yukawa coupling structure of constrained sequential dominance |
the existence of the neutrino mass has been established by the neutrino oscillation experiments. the so-called seesaw extension of the standard model is probably the simplest idea to naturally explain the existence of tiny neutrino mass through the lepton number violating majorana mass term. there is another alternativ... | collider phenomenology of heavy neutrinos |
several anomalies recorded in short-baseline neutrino experiments suggest the possibility that the standard 3-flavor framework may be incomplete and point towards a manifestation of new physics. light sterile neutrinos provide a credible solution to these puzzling results. here, we present a concise review of the statu... | phenomenology of light sterile neutrinos |
we consider the four neutrino oscillation that accommodate the all neutrino oscillation data. we consider the range of the corresponding mixing parameters by the result of neutrino oscillation experiments. implicaion of the neutrino oscillation search for the neutrino mass square difference and mixing are discussed. we... | effective neutrino masses from four flavor neutrino mixing matrix |
confirming previous controversial results, the miniboone experiment detects a signal that is incompatible with neutrino oscillations involving just the three known flavors of neutrinos. | the plot thickens for a fourth neutrino |
the effect of the quantum decoherence of neutrino mass states on collective oscillations of neutrinos has been studied for the case of three flavors using a method based on the stability analysis of the lindblad equation with the neutrino evolution hamiltonian including the effects of the self-interaction. new analytic... | effect of quantum decoherence on collective neutrino oscillations |
the deepcore sub-array within the icecube neutrino observatory is a densely instrumented region of antarctic ice designed to observe atmospheric neutrino interactions above 5 gev via cherenkov radiation. an essential aspect of any neutrino oscillation analysis is the ability to accurately identify the flavor of neutrin... | low energy event classification in icecube using boosted decision trees |
in this talk i present an appearance search for sterile neutrinos based on the 3+1 model in the microboone experiment. recently released results by microboone show no sign of the miniboone/lsnd low-energy-excess anomaly. the 3+1 model examined here expands on the standard model of neutrinos by adding a fourth neutrino ... | search for a 3+1 sterile neutrino with the microboone experiment using the deep-learning-based reconstruction |
the flavor composition of ultra-high energy cosmic neutrinos (uhecn) carries precious information about the physical properties of their sources, the nature of neutrino oscillations and possible exotic physics involved during the propagation. since uhecn with different incoming directions would propagate through differ... | feasibility of determining diffuse ultra-high energy cosmic neutrino flavor ratio through ara neutrino observatory |
we study dirac neutrinos propagating in rotating background matter. first we derive the dirac equation for a single massive neutrino in the noninertial frame, where matter is at rest. this equation is written in the effective curved space-time corresponding to the corotating frame. we find the exact solution of the dir... | neutrino interaction with background matter in a noninertial frame |
in extremely dense neutrino environments like in supernova core, the neutrino-neutrino refraction may give rise to self-induced flavor conversion. these neutrino flavor oscillations are well understood from the idea of the exponentially growing modes of the interacting oscillators in the flavor space. until recently, t... | supernova neutrinos: flavor conversion independent of their mass |
the neutrino is perhaps the most elusive member of the particle zoo. the questions about its nature, namely: dirac or majorana, the value of its mass and the interactions with other particles, the number of its components including sterile species, are long standing ones and still remain to a large extent without concl... | the neutrino mass problem: from double beta decay to cosmology |
the effect of neutrino oscillations on the thermodynamic characteristics of three-flavor hot quark matter in β-equilibrium that is opaque for neutrinos is examined in terms of the local su(3) nambu-jona-lasinio (njl) model which also accounts for the `t hooft interaction that leads to quark flavor mixing. the thermodyn... | effect of neutrino oscillations on the thermodynamic properties of hot quark matter |
several anomalies observed in short-baseline neutrino experiments indicate that the standard 3-flavor framework may be incomplete and point towards the existence of light sterile neutrinos. here, we present a concise review of the status of the neutrino oscillations within the 3+1 scheme, which is a minimal extension o... | short- and long-baseline sterile neutrino phenomenology |
using a modification of the standard model, which makes it possible to construct the fock space for flavor neutrinos, we show that, when a neutrino interacts with a constant electromagnetic field and with matter characterized by constant velocity and polarization, extra t-violating terms arise in the spin-flavor transi... | discrete symmetries in neutrino oscillations in a dense medium and an electromagnetic field |
dune is a cutting-edge experiment aiming to study neutrinos in detail, with a special focus on the flavor oscillation mechanism. the prototype of the dune far detector single phase tpc (protodune-sp) was built and operated at cern with a full set of reconstruction tools. to implement these reconstruction tools, pandora... | slicing with deep learning models at protodune-sp |
these results represent the solution for the historical problem of the contamination by matter effects on the cpv asymmetry for neutrino oscillations. vacuum is cpt-symmetric and matter is t-symmetric, the goal is accomplished by using this guiding principle. independent of the theoretical framework for the dynamics of... | genuine and matter-induced components of the cpv asymmetry for neutrino oscillations |
nova is a long-baseline neutrino oscillation experiment. neutrinos produced by the 850 kw numi beam are detected by a near detector, located at fermilab, and a much larger 14 kton far detector, located 810 km away. these massive tracking calorimeters are designed to detect and identify muon and electron neutrino intera... | latest 3-flavor neutrino oscillations results from the nova experiment |
simulations of core collapse supernovae have undergone great progress in the last decade, yet detections of supernova neutrinos are needed to test these theoretical models. the neutronization burst has yet to be observed; the mechanism that triggers the explosion needs to be tested by observation. in addition, core col... | detect supernova neutrinos with darkside-20k lar tpc |
we propose a minimal scale-invariant (si) scotogenic model and study its phenomenological implications. the si scotogenic predicts a singlet scalar (dilaton) that triggers electroweak symmetry breaking and sources the lepton number violation that allows radiative neutrino mass. a viable parameter space is found for dar... | ν’s in particle physics and cosmology |
discovery of neutrino oscillations (demonstrating lepton-flavor violation in neutral leptons) begs a question of profound importance: is there flavor violation in charged leptons as well? within the standard model, conservation laws are typically associated with certain symmetries. no such symmetries are identified for... | search for charged lepton flavor violation at the us electron-ion collider |
the nova experiment is a long-baseline neutrino oscillation experiment that uses the upgraded numi beam from fermilab to detect both electron and muon flavored neutrinos in a near detector, located at fermilab, and a far detector, located at ash river, minnesota. nova's primary physics goals include precision measureme... | first oscillation results using neutrinos and antineutrinos from the nova experiment |
in a core collapse supernova, collective oscillations of neutrinos emitted by the proto-neutron star significantly modifies the partition of energy between different flavors in a way which is potentially important for the nucleosynthesis of heavy elements at the outer layers. as the outcome of collective oscillations d... | astrophysical neutrinos and flavor evolution with self interaction |
this century the situation has changed: neutrino oscillations have shown that the sm is incomplete. on the other hand, we have not found signs of susy, which is seen as the best candidate for new dynamics (nd). we should search for nd indirectly with accuracy in regions that are above what lhc can find it directly. gen... | the school of athens or bridge between mep and hep |
the majority of neutrino oscillation experiments have obtained evidence for neutrino oscillations that are compatible with the three-flavor model. explaining anomalous results from short-baseline experiments, such as lsnd and miniboone, in terms of neutrino oscillations requires the existence of sterile neutrinos. the ... | sterile neutrino search in the nova far detector |
in a recent analysis of atmospheric muon neutrino disappearance, icecube placed strong bounds on active-sterile neutrino mixing thus increasing the tension between disappearance measurements and the various signal excesses seen in short baseline and reactor neutrino experiments. the growing tension from terrestrial exp... | exploring a non-minimal sterile neutrino model at icecube |
although the standard model describes fundamental particle interactions to high precision,neutrino flavor oscillations, the observed baryon asymmetry, and complete absence of gravity from the model make it clear that there is important physics it does not describe, so called beyond the standard model (bsm). a nonzero f... | status of the 45ca beta spectrum measurement at los alamos national laboratory |
we discuss implications of limits or measurements of neutrinoless double beta decay. the standard mechanism of light neutrino exchange and its connection to neutrino oscillations and efforts to pin down neutrino mass is summarized. then various alternatives to the standard mechanism are discussed, including left-right ... | interpretations of neutrinoless double beta decay |
heavy quarks and leptons is dedicated to the study of the heavy quarks charm, bottom, and top with obvious extensions to interesting topics involving the strange quark. neutrino oscillation studies and new insights in μ and τ lepton phenomenology are also included. the conference continues the tradition of regular scie... | xiii international conference on heavy quarks and leptons |
until recently the neutrinos emitted from the proto-neutron star created in a core-collapse supernova explosion were not expected to undergo flavor oscillations until significantly outside of the neutrinosphere. that expectation was later challenged when non-isotropic angular distributions of the neutrinos was consider... | neutrino fast flavor conversions in 1d supernova simulations |
the long-baseline neutrino experiment collaboration has developed a design for a next generation u.s. long-baseline neutrino experiment consisting of a large liquid argon neutrino detector 1300 km downstream of a wide-band neutrino beam. the goal of the experiment is to measure neutrino flavor oscillations, and to look... | background reduction in neutrino oscillation analyzes for a liquid argon-based long-baseline neutrino experiment |
neutrinos are tiny sub-atomic particles that carry no electrical charge and interact with matter only through the weak nuclear force, which makes them extremely hard to detect. there are three distinct types of neutrinos, called ''flavors'': (νe, νμ, ντ), each of which can ''oscillate'' into the other with a detectable... | efficient neutrino oscillation parameter inference with a gaussian process-accelerated feldman-cousins algorithm |
the minos experiment was a long-baseline, two-detector experiment, magnetized steel-scintillator detector. from 2005 to 2012, minos performed measurements of oscillations driven by the atmospheric frequency through observations of muon neutrino and muon antineutrino disappearance and electron neutrino appearance in the... | recent results from minos and minos+ |
nova is a long baseline neutrino experiment which measures muon-flavor to electron-flavor oscillations from neutrinos and anti-neutrinos produced in the numi beam at fermilab. over the past few years, we have adapted techniques from the field of computer vision to fundamental parts of nova's analysis such as signal sel... | deep learning for neutrino physics on nova: successes and lessons |
neutrino flavor oscillation experiments prove that neutrinos have nonzero masses, but cannot determine the absolute mass scale. to address this question, the effective mass of the electron antineutrino mνe can be determined from a sufficiently high-precision measurement of the tritium beta-decay spectrum around its end... | overview of atomic tritium efforts within project 8 |
the neutrino oscillation and the oldest picture of its building encounters the condition of a unity of flavor and gauge symmetry laws and requires the explanation both from the point of view of a classification of elementary particles with respect to c-operation and from the point of view of neutrino strings. to solve ... | on a flavor symmetrical mode of neutrino oscillation |
three-flavor neutrino oscillations have successfully explained a wide range of neutrino oscillation data. however, the excess of events as seen by the lsnd and miniboone experiments and the deficit of events seen at the gallex and sage experiments when exposed to a calibration source can be explained if a new sterile n... | short-baseline sterile neutrino searches using the nova near detector |
the evidence of neutrino oscillations from the majority of neutrino oscillation experiments are consistent with a three-flavor model, but the existence of additional sterile neutrino flavors is required to explain deviations observed in short-baseline experiments, such as lsnd and miniboone, in terms of neutrino oscill... | planned improvements to sterile neutrino searches in the nova far detector |
a major goal of present and future long-baseline neutrino oscillation experiments is to make precision measurements of neutrino flavour oscillations, which are well-explained by mixing between three active flavors within current experimental constraints. however, other mechanisms could be responsible for neutrino flavo... | opportunity to study physics beyond standard neutrino oscillations @dune |
neutrino interactions in the detectors of long baseline oscillation experiments are analyzed to determine the neutrino flavor and energy spectrum, allowing the neutrino mass ordering and mixing parameters to be determined. for neutrino interactions below the pion production threshold, the dominant reaction is charged c... | an improved measurement of the muon neutrino charged current quasi-elastic cross-section on hydrocarbon at minernua |
t2k (tokai to kamioka) is a long-baseline neutrino oscillation experiment located in japan and designed to measure neutrino flavor oscillation using an off-axis neutrino beam. data collected recently with an anti-neutrino beam allows t2k to measure cross sections for anti-neutrinos at an energy around 600 mev using the... | muon antineutrino charged-current cross sections without pions in the final state at t2k |
the minos+ experiment began using the minos detectors with a higher energy neutrino beam in september 2013. for three years minos+ collected data from the medium energy numi neutrino beam at fermilab and atmospheric neutrinos. results for the measurement of δ m^2_{32} and θ_{23} using muon neutrino disappearance from t... | three flavor oscillation results from minos and minos+ |
although most of the recent experimental results on neutrino oscillations are consistent with three active neutrino flavors, some of them have shown deviations from standard oscillations (e.g. lsnd, miniboone, gallium experiments) that can be explained by admixture of non-active flavors, i.e. the existence of light ste... | latest results from searches for neutral current disappearance in nova |
understanding the behavior of matter at ultra-high density such as neutron stars require the knowledge of ground state properties of quantum chromodynamics (qcd) at finite chemical potential. however, this task has turned out to be very difficult because of two main reasons: 1) qcd may still be strongly coupled at thos... | topics in qcd at nonzero temperature and density |
three-flavour neutrino oscillations have successfully explained a wide range of neutrino oscillation data. however, anomalous results, such as the electron antineutrino appearance excesses seen by lsnd and miniboone, can be explained by the addition of a sterile neutrino at a larger mass scale than the existing three n... | search for muon neutrino disappearance due to sterile neutrino oscillations with the minos/minos+ experiment |
nova is a long-baseline neutrino oscillation experiment that is designed to probe the neutrino mass hierarchy and mixing structure. it uses two functionally identical liquid scintillator detectors 14mrad off-axis from the numi beamline at fermilab, allowing a tightly focused neutrino flux peaked at around 2 gev. the ne... | latest constraints on mixing parameters in three-flavor neutrino oscillations from nova |
we present a theoretical analysis [1] of possible influence of neutrino magnetic moments on the propagation of ultrahigh-energy cosmic neutrinos in the interstellar space under the assumption of two-neutrino mixing. the exact solution of the effective equation for neutrino evolution in the presence of a magnetic field ... | electromagnetic interactions and oscillations of ultrahigh-energy cosmic neutrinos in interstellar space |
finding the final theory that can describe everything in the universe is of great interests, which is closely relevant to neutrino oscillation, m-theory and cp violation. we propose an instructive possibility to generalize the tri-bimaximal neutrino mixing ansatz, such that leptonic cp violation and the fractal feature... | the first evidence for m-theory: fractal nearly tri-bimaximal neutrino mixing and cp violation |
by considering dirac's equation using quaternions ($\mathbb{h}$) with their greater degree of freedom in imaginaries, it is shown that a model can be created with oscillations among flavors even if the particles, are massless. furthermore the solutions are spin $\frac{1}{2}$ and have helicities depending on whether the... | oscillating flavors in massless neutrinos |
antineutrinos emitted by nuclear reactors have been a powerful tool for particle physics, demonstrating the existence of these weakly-interacting particles as well as their flavor oscillation. despite these successes, our understanding of the total flux and energy spectra of reactor antineutrinos has been fraught with ... | reactor antineutrinos: from confusion to clarity |
studies of supernova neutrinos provide knowledge of neutrino oscillations and supernova physics. the deep underground neutrino experiment (dune) will enable exploration of the three-flavor model of neutrino physics and solve questions in regards to the dynamics of supernova, the stability of matter, and matter-antimatt... | modeling neutral-current neutrino interactions in liquid argon |
we consider a modified randall-sundrum (rs) framework between the planck scale and the grand unified theory (gut) scale. in this scenario, rs works as a theory of flavor and not as a solution to the hierarchy problem. the latter is resolved by supersymmetrizing the bulk, so that the minimal supersymmetric standard mode... | r -parity violation in a warped gut scale randall-sundrum framework |
the tokai to kamioka (t2k) experiment is a long-baseline neutrino oscillation experiment located in japan with the primary goal to measure precisely multiple neutrino flavor oscillation parameters. an off-axis muon neutrino beam peaking at 600 mev is generated at the jparc facility and directed towards the 50 kiloton s... | measurement of numu induced charged current inclusive cross section on water using the near detector of the t2k experiment |
the physics of a superconductor subjected to a magnetic field is known to be equivalent to neutrino oscillations. examining the properties of singlet-triplet oscillations in the magnetic field, a sterile neutrino is suggested to be represented by singlet cooper pairs and moderates flavor oscillations between three flav... | reproducing sterile neutrinos and the behavior of flavor oscillations with superconducting-magnetic proximity effects |
the short-baseline neutrino program at fermi national laboratory will search for evidence of sterile neutrinos in the 1 ev2 mass splitting range and definitively follow-up on the previous results of the lsnd and miniboone experiments. this is performed by searching for the corresponding appearance and disappearance of ... | neutrino interactions systematic uncertainties and the fermilab short-baseline neutrino program |
the standard model is the theory that describes the fundamental constituents of matter and their interactions. despite its great success, there still exists evidence for a wide range of phenomena, which lie outside the framework of the standard model. among these, neutrino flavor oscillations hold great promise to brin... | sterile neutrino experiments i: accelerator-based |
three-flavor neutrino oscillations have successfully explained a wide range of neutrino oscillation experiment results. however, anomalous results, such as the electron-antineutrino appearance excess seen by lsnd and miniboone, do not fit the three-flavor paradigm and can be explained by the addition of a sterile neutr... | nova short-baseline tau-neutrino search |
the daya bay reactor neutrino experiment is designed to precisely measure the neutrino oscillation parameter θ13, via the relative comparison of antineutrino rates and energy spectra at different baselines. the experiment's unique configuration of multiple baselines from six 2.9 gwth nuclear reactors serving as intense... | precise measurements of oscillation parameters and search for a light sterile neutrino at daya bay |
the three-neutrino flavor paradigm has been used to model neutrino oscillations with almost universal success, but evidence arising from the lsnd and miniboone experiments, as well as from he reactor and gallium neutrino anomalies, suggests additional physics yet to be explained. these anomalous results can be explaine... | sterile neutrino searches using the nova detector |
it is now well accepted that neutrinos oscillate as a quantum mechanical result of a misalignment between their mass-eigenstates and the flavor-eigenstates. we study neutrino decay—the idea that there may be new, light states that the three standard model flavors may be able to decay into. we consider what effects this... | effects of neutrino decay on oscillation probabilities |
with its low-energy extension deepcore, the icecube neutrino observatory at the amundsen-scott south pole station is able to detect neutrino events with energies as low as 10 gev. this permits the investigation of flavor oscillations of atmospheric muon neutrinos in an energy range not covered by other experiments, ope... | measurement of atmospheric neutrino oscillations with icecube/deepcore in its 79-string configuration |
the latest neutrino mixing data has established the relatively large value of reactor mixing angle, θ13 ∼90. in view of that and assuming majorana nature of neutrinos, we have reexamined the texture one-zero neutrino mass matrices with one vanishing neutrino mass in the flavor basis. we observe that for m1 = 0 (normal ... | implication of θ 13 on majorana neutrino mass matrices with one texture zero and one vanishing eigenvalue |
high energy neutrino telescopes such as icecube, antares, and the future km3net can measure flavor oscillations using large atmospheric neutrino data sets. these observations are highly complementary to accelerator and reactor neutrino measurements, as they probe higher neutrino energies and a wide range of baselines, ... | latest results from icecube and antares |
the standard model (sm) has become one of the most complete theories encapsulating fundamental particle interactions. despite its far ranging success, neutrino flavor oscillations, the observed baryon asymmetry, the dark matter puzzle, and complete absence of gravity from the theory makes it clear that there must exist... | in search for bsm physics in the beta decay of 45ca |
emulsion cloud chamber(ecc) was the key technology for the discovery of tau neutrino at the donut experiment and tau neutrino appearance via flavor oscillation at the opera experiment. its micron-scaled event topology resolution and particle identification land ecc to a variety of applications with muonography, as well... | a machine learning approach to track identification in emulsion cloud chambers |
in the type-i seesaw model, the lepton-flavor-mixing matrix (pontecorvo-maki-nakagawa-sakata matrix) and the quark-flavor-mixing matrix [cabibbo-kobayashi-maskawa (ckm) matrix] may be connected implicitly through a relation between the neutrino dirac yukawa coupling yd and the quark yukawa couplings. in this paper, we ... | prediction on neutrino dirac and majorana phases and absolute mass scale from the ckm matrix |
the reactor antineutrino anomaly (raa) has challenged our understanding of antineutrino fluxes near fission reactors. adding an extra oscillation channel with δm2≃1 δ m^2 ≃ 1 ev involving a new "sterile" neutrino flavor would resolve the raa. this hypothesis can be tested by looking at disappearance oscillation pattern... | energy reconstruction in the stereo experiment |
neutrinos are neutral leptons and there exist three types of neutrinos (electron neutrinos νe, muon neutrinos νµ and tau neutrinos ντ). these classifications are referred to as neutrinos's "flavors". oscillations between the different flavors are known as neutrino oscillations, which occurs when neutrinos have mass and... | unitarity of neutrino mixing matrix |
emulsion cloud chamber(ecc) was the key technology for the discovery of tau neutrino at the donut experiment and tau neutrino appearance via flavor oscillation at the opera experiment. its micron-scaled event topology resolution and particle identification land ecc to a variety of applications with muonography, as well... | a machine learning approach to track identification in emulsion cloud chambers |
three-flavor neutrino oscillations have successfully explained a wide range of neutrino oscillation experiment results. however, anomalous results, such as the electron-antineutrino appearance excess seen by lsnd and miniboone, do not fit the three-flavor paradigm and can be explained by the addition of a sterile neutr... | nova short-baseline tau-neutrino appearance search |
parity violating electron scattering (pves) is an extremely successful precision frontier tool that has been used for testing the standard model (sm) and understanding nucleon structure. several generations of highly successful pves programs at slac, mit-bates, mami-mainz, and jefferson lab have contributed to the unde... | the moller experiment: ``an ultra-precise measurement of the weak charge of the electron using moller scattering'' |
at the present time even the most sophisticated, multi-dimensional simulations of core-collapse supernovae do not (self-consistently) include neutrino flavor transformation. this physics is missing despite the importance of neutrinos in the core-collapse explosion paradigm. because of this dependence, any flavor transf... | the effects of neutrino oscillations on core-collapse supernova explosions |
weakly interacting massive particles (wimps) and axions are arguably the most compelling dark matter (dm) candidates in the literature. here, we consider a model where the pq symmetry solves the strong cp problem, generates radiatively dirac neutrino masses, and gives origin to multicomponent dark sector. specifically,... | singlet-doublet dirac fermion dark matter from peccei-quinn symmetry |
this paper investigates non-thermal leptogenesis from inflaton decays in the minimal extension of the canonical type-i seesaw model, where a complex singlet scalar $\phi$ is introduced to generate the majorana masses of right-handed neutrinos (rhns) and to play the role of inflaton. first, we systematically study non-t... | towards a systematic study of non-thermal leptogenesis from inflaton decays |
if massive neutrinos are majorana particles, then the lepton number should be violated and neutrino-antineutrino oscillations will take place. in this talk, we present the properties of cp violation in neutrino-antineutrino oscillations with a non-unitary leptonic flavor mixing matrix, which naturally arises in the typ... | probing cp violation in neutrino-antineutrino oscillations with non-unitary flavor mixing |
we study a one-loop induced neutrino mass model with an inert isospin triplet scalar field of $y=0$ and heavier majorana right-handed fermions. we show numerical analysis of neutrino oscillation and lepton flavor violations and demonstrate our allowed regions in cases of normal and inverted hierarchies. then, we move o... | neutrino mass model and dark matter with $y=0$ inert triplet scalar |
the isotope decay-at-rest (isodar) experiment is designed to provide a unique search for short baseline electron flavor anti-neutrino oscillations. in essence, it is a novel high-intensity cyclotron based neutrino factory that will be able to precisely measure neutrino oscillations over an l/e of approximately 0.6-7.0 ... | isodar - a decisive 3+1 sterile neutrino search. |
we prove [1] that, in any flavor transition, neutrino oscillation cp violating asymmetries in matter have two disentangled components: (a) a cpt-odd t-invariant term, non-vanishing iff there are interactions with matter; (b) a t-odd cpt-invariant term, non-vanishing iff there is genuine cp violation. as function of the... | disentangling genuine from matter-induced cp violation in neutrino oscillations |
huge electromagnetic fields are known to be present during the late stages of the dynamics of supernovae. thus, when dealing with electrodynamics in this context, the possibility may arise to probe nonlinear theories. the einstein field equations minimally coupled to an arbitrary nonlinear lagrangian of electrodynamics... | neutrino physics in slowly rotating black hole spacetime and nonlinear electrodynamics |
the fact that neutrinos have mass and can oscillate from one flavor to another has opened up a wide range of neutrino flavor measurements. those measurements could uncover the source of cp violation that lead to the baryon asymmetry present in the universe today, and will also enable us to understand more about how the... | future neutrino facilities |
implication of neutrino mass model based on $\delta$(27) discrete flavor symmetry, on parameters of neutrino oscillations, cp violation and effective neutrino masses is studied using type-i seesaw mechanism. the standard model particle content is extended by adding two additional higgs doublets, three right-handed neut... | deviations from $\\mu$-$\\tau$ symmetry using $\\delta$(27) group on neutrino masses and mixings |
the present study entails the augmentation of the $\delta$(54) flavor symmetry model by including the iss mechanism by two standard model higgs particles, achieved by the inclusion of different flavons. the matrices are discussed numerically in the framework of the $\delta(54)$ flavor model with the iss mechanism for m... | majorana neutrinos in inverse seesaw and $\\boldsymbol{\\delta(54)}$ flavor models |
current neutrino oscillation data indicate that the $3\times 3$ pontecorvo-maki-nakagawa-sakata matrix $u$ exhibits a $\mu$-$\tau$ flavor interchange symmetry $|u^{}_{\mu i}| = |u^{}_{\tau i}|$ (for $i = 1, 2, 3$) as a good approximation. in particular, the t2k measurement implies that the maximal neutrino mixing angle... | towards identifying the minimal flavor symmetry behind neutrino oscillations |
we built an extended 2hdm theory with a spontaneously broken $u(1) _{x}$ global symmetry, where the tree level universal seesaw mechanism generates the mass hierarchy of the standard model charged fermions and the zee-babu mechanism produces tiny active neutrino masses. the third family of sm charged fermions gets tree... | effective interactions for the sm fermion mass hierarchy and their possible uv realization |
in this work we will propose a new universal super weak $su(n)_{w}$ (or self interacting vector bosons) color to which all the sm fermions are assumed to be coupled universally whose confining radius is in the range of the size of galaxies. we will argue that the model has some very interesting consequences such as it ... | phenomenology of a universal super weak $su(n)_{w}$ color hypothesis |
parameterized relativistic dynamics (prd) is a manifestly covariant quantum theory with invariant evolution parameter. the theory has been applied to neutrino flavor oscillations between two mass states. it is generalized here to transitions between three mass states and applied to electron neutrino oscillations. | parameterized relativistic dynamical formalism for transitions between three flavor states |
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