scholarly journals Signatures of ultralight dark matter in neutrino oscillation experiments

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Abhish Dev ◽  
Pedro A. N. Machado ◽  
Pablo Martínez-Miravé
Keyword(s):  
Dark Matter ◽  
Neutrino Oscillation ◽  
Experimental Analysis ◽  
Neutrino Oscillations ◽  
Experimental Setup ◽  
Oscillation Probability ◽  
Time Modulation ◽  
Matter Effects ◽  
Model Independent ◽  
Oscillation Experiment

Abstract We study how neutrino oscillations could probe the existence of ultralight bosonic dark matter. Three distinct signatures on neutrino oscillations are identified, depending on the mass of the dark matter and the specific experimental setup. These are time modulation signals, oscillation probability distortions due to fast modulations, and fast varying matter effects. We provide all the necessary information to perform a bottom-up, model-independent experimental analysis to probe such scenarios. Using the future DUNE experiment as an example, we estimate its sensitivity to ultralight scalar dark matter. Our results could be easily used by any other oscillation experiment.

COMPARISON OF MATTER EFFECTS IN STRANGENESS OSCILLATIONS AND IN NEUTRINO OSCILLATIONS

1987 ◽  
Vol 02 (08) ◽  
pp. 565-571
Author(s):  
G. V. DASS ◽  
K. V. L. SARMA
Keyword(s):  
Neutrino Oscillations ◽  
Oscillation Probability ◽  
Matter Effects

Proceeding in analogy to the Mikheyev-Smirnov enhancement of matter effects on neutrino oscillations we consider the limit wherein the effects of the medium on [Formula: see text] oscillations are maximized. In this limit it is found that the ratio of the strangeness-oscillation probability in matter to that in vacuum cannot exceed unity.

MONOLITH: A MASSIVE MAGNETIZED TRACKING CALORIMETER FOR THE STUDY OF ATMOSPHERIC NEUTRINO OSCILLATIONS

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 736-738
Author(s):  
◽  
FRANCESCO TERRANOVA
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Oscillations ◽  
Atmospheric Neutrino ◽  
Cosmic Ray ◽  
High Energy ◽  
Neutrino Beam ◽  
Muon Neutrinos ◽  
Matter Effects ◽  
Sensitivity Range ◽  
Atmospheric Muon

MONOLITH is a proposed massive (34 kton) magnetized tracking calorimeter at the Gran Sasso laboratory in Italy, optimized for the detection of high energy atmospheric muon neutrinos. The main goal is to establish (or reject) the neutrino oscillation hypothesis through an explicit observation of the full first oscillation swing. The Δm2 sensitivity range for this measurement comfortably covers the complete Super-Kamiokande allowed region. Other measurements include studies of matter effects and the up/down ratio of NC events, the study of cosmic ray muons in the multi-TeV range, and auxiliary measurements from the CERN to Gran Sasso neutrino beam.

scholarly journals INVESTIGATING PSEUDOSCALAR AND SCALAR DARK MATTER

2006 ◽  
Vol 21 (07) ◽  
pp. 1445-1469 ◽  
Author(s):  
R. BERNABEI ◽  
P. BELLI ◽  
F. MONTECCHIA ◽  
F. NOZZOLI ◽  
F. CAPPELLA ◽  
...  
Keyword(s):  
Dark Matter ◽  
Galactic Halo ◽  
Dark Matter Candidate ◽  
Experimental Setup ◽  
X Rays ◽  
Independent Evidence ◽  
Model Independent

In this paper another class of Dark Matter candidate particles — the pseudoscalar and scalar light bosonic candidates — is discussed. Particular care is devoted to the study of the processes for their detection (which only involves electrons and photons/X-rays) in a suitable underground experimental setup. For this purpose the needed calculations are developed and various related aspects and phenomenologies are discussed. In particular, it is shown that — in addition to the WIMP cases already discussed elsewhere — there is also possibility for a bosonic candidate to account for the 6.3σ C.L. model independent evidence for the presence of a particle DM component in the galactic halo observed by DAMA/ NaI . Allowed regions in these scenarios are presented also paying particular care on the cosmological interest of the bosonic candidate.

scholarly journals Neutrino oscillation, finite self-mass and general Yang–Mills symmetry

2016 ◽  
Vol 31 (34) ◽  
pp. 1650200
Author(s):  
Jong-Ping Hsu
Keyword(s):  
Dark Matter ◽  
Neutrino Oscillation ◽  
Fourth Order ◽  
Neutrino Oscillations ◽  
Lepton Number ◽  
Yang Mills ◽  
Gauge Functions ◽  
Vector Gauge ◽  
Fourth Order Equations ◽  
Phase Functions

The conservation of lepton number is assumed to be associated with a general Yang–Mills (gYM) symmetry. New transformations involve (Lorentz) vector gauge functions and characteristic phase functions, and they form a group. General Yang–Mills fields are associated with new fourth-order equations and linear potentials. Lepton self-masses turn out to be finite and proportional to the inverse of lepton masses, which implies that neutrinos should have nonzero masses. Thus, gYM symmetry could provide an understanding of neutrino oscillations and suggests that neutrinos with masses and very weak leptonic force may play a role in dark matter.

RECENT RESULTS FROM K2K

2002 ◽  
Vol 17 (24) ◽  
pp. 3364-3377 ◽  
Author(s):  
◽  
C. K. JUNG
Keyword(s):  
Neutrino Oscillation ◽  
Atmospheric Neutrino ◽  
Neutrino Beam ◽  
Statistical Fluctuation ◽  
Atmospheric Neutrinos ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Oscillation Analysis ◽  
The Us ◽  
Oscillation Experiment

K2K is a long baseline neutrino oscillation experiment using a neutrino beam produced at the KEK 12 GeV PS, a near detector complex at KEK and a far detector (Super-Kamiokande) in Kamioka, Japan. The experiment was constructed and is being operated by an international consortium of institutions from Japan, Korea, and the US. The experiment started taking data in 1999 and has successfully taken data for about two years. K2K is the first long beseline neutrino oscillation experiment with a baseline of order hundreds of km and is the first accelerator based neutrino oscillation experiment that is sensitive to the Super-Kamiokande allowed region obtained from the atmospheric neutrino oscillation analysis. A total of 44 events have been observed in the far detector during the period of June 1999 to April 2001 corresponding to 3.85 × 1019 protons on target. The observation is consistent with the neutrino oscillation expectations based on the oscillation parameters derived from the atmospheric neutrinos, and the probability that this is a statistical fluctuation of non-oscillation expectation of [Formula: see text] is less than 3%.

NEUTRINO MASS SPECULATION ON THE EVENTS OF NEUTRINOS FROM THE SUPERNOVA LMC 1987 A

1987 ◽  
Vol 02 (12) ◽  
pp. 905-911 ◽  
Author(s):  
H. HUZITA
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Energy Threshold ◽  
Energy Correlation ◽  
Neutrino Oscillation Experiment ◽  
Oscillation Experiment

The interactions of neutrinos from the supernova LMC 1987 A by Kamiokande II apparatus have a curious character. Time to energy correlation has two separated groups. If this is not completely by chance each group corresponds to non zero neutrino mass 3.4 ± 0.6 and 23. ± 4. eV . The latter is not consistent with the results of neutrino oscillation experiment. IMB data are not contrary to the Kamiokas considering IMB's higher energy threshold.

scholarly journals Non-standard interactions in SMEFT confronted with terrestrial neutrino experiments

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Yong Du ◽  
Hao-Lin Li ◽  
Jian Tang ◽  
Sampsa Vihonen ◽  
Jiang-Hao Yu
Keyword(s):  
Neutrino Oscillation ◽  
New Physics ◽  
Effective Field ◽  
Scalar Leptoquark ◽  
Double Chooz ◽  
The Standard Model ◽  
Reactor Neutrino ◽  
Model Independent ◽  
Neutrino Experiments ◽  
Individual Dimension

Abstract The Standard Model Effective Field Theory (SMEFT) provides a systematic and model-independent framework to study neutrino non-standard interactions (NSIs). We study the constraining power of the on-going neutrino oscillation experiments T2K, NOνA, Daya Bay, Double Chooz and RENO in the SMEFT framework. A full consideration of matching is provided between different effective field theories and the renormalization group running at different scales, filling the gap between the low-energy neutrino oscillation experiments and SMEFT at the UV scale. We first illustrate our method with a top- down approach in a simplified scalar leptoquark model, showing more stringent constraints from the neutrino oscillation experiments compared to collider studies. We then provide a bottom-up study on individual dimension-6 SMEFT operators and find NSIs in neutrino experiments already sensitive to new physics at ∼20 TeV when the Wilson coefficients are fixed at unity. We also investigate the correlation among multiple operators at the UV scale and find it could change the constraints on SMEFT operators by several orders of magnitude compared with when only one operator is considered. Furthermore, we find that accelerator and reactor neutrino experiments are sensitive to different SMEFT operators, which highlights the complementarity of the two experiment types.

Particle dark matter in the galactic halo: recent results from DAMA/LIBRAThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at École de Physique, les Houches, France, 30 May – 4 June, 2010.

2011 ◽  
Vol 89 (1) ◽  
pp. 141-152 ◽  
Author(s):  
R. Bernabei ◽  
P. Belli ◽  
F. Montecchia ◽  
F. Nozzoli ◽  
F. Cappella ◽  
...  
Keyword(s):  
Dark Matter ◽  
First Generation ◽  
Galactic Halo ◽  
National Laboratory ◽  
Cumulative Exposure ◽  
Independent Evidence ◽  
Annual Cycles ◽  
Atomic Systems ◽  
Model Independent ◽  
Particle Dark Matter

The DAMA/LIBRA experiment has a sensitive mass of about 250 kg highly radiopure NaI(Tl). It is running at the Gran Sasso National Laboratory of the INFN in Italy and is mainly devoted to the investigation of dark matter (DM) particles in the galactic halo by exploiting the model-independent DM annual modulation signature. The present DAMA/LIBRA and the former DAMA/NaI experiments (the first generation experiment having an exposed mass of about 100 kg) have thus far cumulatively released the results of data collected over 13 annual cycles (total exposure: 1.17 t year). They give model-independent evidence of the presence of DM particles in the galactic halo on the basis of the investigated DM signature at 8.9 σ C.L. for the cumulative exposure. The main aspects of the obtained results are summarized and some comments are addressed.

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