Results 11 to 20 of about 18,333 (138)

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   +6 more sources

Axion–Sterile Neutrino Dark Matter [PDF]

Universe, 2021
Extending the standard model with three right-handed neutrinos and a simple QCD axion sector can account for neutrino oscillations, dark matter and baryon asymmetry; at the same time, it solves the strong CP problem, stabilizes the electroweak vacuum and can implement critical Higgs inflation (satisfying all current observational bounds).
Salvio A., Scollo S.
openaire   +4 more sources

Atomic ionization by sterile-to-active neutrino conversion and constraints on dark matter sterile neutrinos with germanium detectors [PDF]

, 2016
The transition magnetic moment of a sterile-to-active neutrino conversion gives rise to not only radiative decay of a sterile neutrino, but also its non-standard interaction (NSI) with matter.
Chen, Jiunn-Wei, Chi, Hsin-Chang, Lin, Shin-Ted, Liu, C. -P., Singh, Lakhwinder, Wong, Henry T., Wu, Chih-Liang, Wu, Chih-Pan   +7 more
core   +2 more sources

The Not-So-Sterile 4th Neutrino: Constraints on New Gauge Interactions from Neutrino Oscillation Experiments [PDF]

, 2014
Sterile neutrino models with new gauge interactions in the sterile sector are phenomenologically interesting since they can lead to novel effects in neutrino oscillation experiments, in cosmology and in dark matter detectors, possibly even explaining ...
Kopp, Joachim, Welter, Johannes
core   +2 more sources

Sterile neutrino as a bulk neutrino [PDF]

Nuclear Physics B, 2000
If light sterile neutrinos are needed to understand the neutrino puzzles, as is currently indicated, a major theoretical challenge is to understand why its mass is so small. It is a more serious problem than understanding the small mass of the familiar neutrinos.
Mohapatra, R. N., Perez-Lorenzana, A.
openaire   +2 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

Hierarchically acting sterile neutrinos [PDF]

The European Physical Journal C, 2012
AbstractWe propose that a hierarchical spectrum of sterile neutrinos (eV, keV, 1013–15 GeV) is considered as the explanation for MiniBooNE and LSND oscillation anomalies, dark matter, and baryon asymmetry of the universe (BAU), respectively. The scenario can also realize the smallness of active neutrino masses by the seesaw mechanism.
Chian-Shu Chen, Ryo Takahashi
openaire   +3 more sources

Sterile Neutrino. A short introduction [PDF]

, 2019
This is a pedagogical introduction to the main concepts of the sterile neutrino - a hypothetical particle, coined to resolve some anomalies in neutrino data and retain consistency with observed widths of the $W$ and $Z$ bosons. We briefly review existing
Naumov, Dmitry V.
core   +2 more sources

Lightest sterile neutrino abundance within the nuMSM [PDF]

, 2006
We determine the abundance of the lightest (dark matter) sterile neutrinos created in the Early Universe due to active-sterile neutrino transitions from the thermal plasma.
[\sc Particle Data Group] W.-M. Yao ., A. Boyarsky, A. Boyarsky, A. Boyarsky, A. Hietanen, C. Bernard ., D. Boyanovsky, D.N. Spergel ., E. Ripamonti, F. Bezrukov, F. Di Renzo, F. Munyaneza, K.N. Abazajian, M. Mapelli, Mikhail Shaposhnikov, Mikko Laine, P. de Forcrand, S. Riemer-Sørensen, S.H. Hansen, T. Asaka, Takehiko Asaka, Y. Aoki   +21 more
core   +2 more sources

eV-Scale Sterile Neutrinos [PDF]

Annual Review of Nuclear and Particle Science, 2019
We address the phenomenology of light sterile neutrinos, with an emphasis on short-baseline neutrino oscillations. After reviewing the observed short-baseline neutrino oscillation anomalies, we discuss the global fit of the data and the current appearance–disappearance tension.
Giunti, Carlo, Lasserre, T.
openaire   +2 more sources