Results 41 to 50 of about 18,559 (251)

Fate of the sterile neutrino

Physics Letters B, 2000
In light of recent Super-Kamiokande data and global fits that seem to exclude both pure _ \to _s oscillations of atmospheric neutrinos and pure _e \to _s oscillations of solar neutrinos (where _s is a sterile neutrino), we reconsider four-neutrino models to explain the LSND, atmospheric, and solar neutrino oscillation indications.
Barger, V., Kayser, B., Learned, J., Weiler, T., Whisnant, K.   +4 more
openaire   +2 more sources

Sterile neutrino Dark Matter [PDF]

Progress in Particle and Nuclear Physics, 2019
We review sterile neutrinos as possible Dark Matter candidates. After a short summary on the role of neutrinos in cosmology and particle physics, we give a comprehensive overview of the current status of the research on sterile neutrino Dark Matter. First we discuss the motivation and limits obtained through astrophysical observations.
Boyarsky, A., Drewes, M., Lasserre, T., Mertens, S., Ruchayskiy, O.   +4 more
openaire   +4 more sources

Update on neutrino mixing in the early Universe [PDF]

, 2001
From the current cosmological observations of CMB and nuclear abundances we show, with an analytic procedure, that the total effective number of extra neutrino species $\Delta N_{\nu}^{\rm tot}< 0.3$.
A. Aguilar, A. Balbi, A. Bandyopadhyay, A. D. Dolgov, A. D. Dolgov, A. D. Dolgov, A. E. Lange, A. H. Jaffe, A. J. Baltz, A. Yahil, B. T. Cleveland, C. Giunti, C. Giunti, D. E. Groom, D. O. Caldwell, D. P. Kirilova, D. P. Kirilova, E. Lisi, G. Altarelli, G. Beaudet, G. Jungman, G. L. Fogli, G. L. Fogli, G. Steigman, H. Kang, H. Kurki-Suonio, H. Reeves, H. V. Klapdor-Kleingrothaus, J. Lesgourgues, J. M. Cline, J. M. O’Meara, J. N. Abdurashitov, J. N. Bahcall, J. R. Bond, J. T. Peltoniemi, J. T. Peltoniemi, K. A. Olive, K. A. Olive, K. Enqvist, K. Kainulainen, M. Ambrosio, M. Apollonio, M. Hirsch, M. Maltoni, M. S. Smith, N. F. Bell, N. Fornengo, N. Hata, N. Okada, O. L. Peres, P. de Bernardis, P. Di Bari, P. Di Bari, P. Di Bari, P. Di Bari, P. Di Bari, P. Langacker, P. Lipari, Q. R. Ahmad, R. Barbieri, R. Becker-Szendy, R. E. Lopez, R. E. Lopez, R. Foot, R. Foot, R. Foot, R. Foot, R. Foot, R. Foot, R. V. Wagoner, S. Fukuda, S. Hanany, S. Hannestad, S. Hannestad, S. M. Bilenkii, S. M. Bilenkii, S. M. Bilenky, S. P. Mikheev, S. P. Mikheev, S. Sarkar, T. Kajita, T. P. Walker, V. Barger, V. Barger, V. Barger, V. F. Shvartsman, W. Grimus, W. Hampel, W. W. M. Allison, X. Shi, X. Shi, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. I. Izotov   +96 more
core   +3 more sources

Radiative emission of neutrino pairs in atoms and light sterile neutrinos

Physics Letters B, 2015
The process of Radiative Emission of Neutrino Pair (RENP) in atoms is sensitive to the absolute neutrino mass scale, the type of spectrum neutrino masses obey and the nature – Dirac or Majorana – of massive neutrinos.
D.N. Dinh, S.T. Petcov
doaj   +1 more source

Nuclear Effects and CP Sensitivity at DUNE

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
The precise measurement of neutrino‐oscillation parameters is one of the highest priorities in neutrino‐oscillation physics. To achieve the desired precision, it is necessary to reduce the systematic uncertainties related to neutrino energy reconstruction.
Srishti Nagu, Jaydip Singh, Jyotsna Singh, R. B. Singh, Burak Bilki   +4 more
wiley   +1 more source

Reionization in sterile neutrino cosmologies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We investigate the process of reionisation in a model in which the dark matter is a warm elementary particle such as a sterile neutrino. We focus on models that are consistent with the dark matter decay interpretation of the recently detected line at 3.5 keV in the X-ray spectra of galaxies and clusters.
Bose, S., Frenk, C. S., Hou, J., Lacey, C. G., Lovell, M. R.   +4 more
openaire   +4 more sources

Probing heavy sterile neutrinos at neutrino telescopes via the dipole portal

Physics Letters B, 2023
The question of how heavy a sterile neutrino can be probed in experiments leads us to investigate the Primakoff production of heavy sterile neutrinos from ultrahigh-energy neutrinos via the magnetic dipole portal.
Guo-yuan Huang, Sudip Jana, Manfred Lindner, Werner Rodejohann   +3 more
doaj   +1 more source

Constraints on Neutrino Electric Millicharge from Experiments of Elastic Neutrino‐Electron Interaction and Future Experimental Proposals Involving Coherent Elastic Neutrino‐Nucleus Scattering

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
In several extensions of the Standard Model of Particle Physics (SMPP), the neutrinos acquire electromagnetic properties such as the electric millicharge. Theoretical and experimental bounds have been reported in the literature for this parameter. In this work, we first carried out a statistical analysis by using data from reactor neutrino experiments,
A. Parada, Filipe R. Joaquim
wiley   +1 more source

Dirac CP phases in a 3 + 1 neutrino scenario with $$\mu -\tau $$ μ - τ symmetry

European Physical Journal C: Particles and Fields, 2021
A sterile neutrino in the $$3+1$$ 3 + 1 scheme, where the sterile accounts for neutrino anomalies not explained solely by the weak active neutrinos, arises as a natural source for the breaking of the $$\mu -\tau $$ μ - τ symmetry suggested by oscillation
Eduardo Becerra-García, Abdel Pérez-Lorenzana   +1 more
doaj   +1 more source

DUNE Prospect for Leptophobic Dark Matter

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
Highly energetic proton/electron beam fixed‐target experiments extend an opportunity to probe the sub‐GeV dark matter and associated interactions. In this work, we have explored the sensitivity of DUNE (Deep Underground Neutrino Experiment) for sub‐GeV leptophobic dark matter, i.e., this dark matter barely couples with the leptons.
Sabeeha Naaz, Jyotsna Singh, R. B. Singh, Alexey A. Petrov   +3 more
wiley   +1 more source