Results 91 to 100 of about 41,177 (205)

Light Sterile Neutrinos

, 2016
The theory and phenomenology of light sterile neutrinos at the eV mass scale is reviewed. The reactor, gallium and Liquid Scintillator Neutrino Detector anomalies are briefly described and interpreted as indications of the existence of short-baseline ...
LAVEDER, MARCO, Li, Y. F, Giunti, C, Zavanin, E. M., Gariazzo, S   +4 more
core   +2 more sources

Searching for heavy neutral leptons coupled to axion-like particles at the LHC far detectors and SHiP

Journal of High Energy Physics
In hidden-sector models, axion-like particles (ALPs) can couple to heavy neutral leptons (HNLs), leading to rich phenomenologies. We study ALPs produced from D- and B-meson decays via quark-flavor-violating couplings, and decaying exclusively into a pair
Zeren Simon Wang, Yu Zhang, Wei Liu
doaj   +1 more source

Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay

, 2012
6 pages, 4 figures; contribution to Moriond EW 2012 ...
Mitra, Manimala, Senjanovic, Goran, Vissani, Francesco   +2 more
openaire   +2 more sources

eV-scale Sterile Neutrinos

, 2019
International audienceWe 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
Giunti, Carlo, Lasserre, T.
core   +1 more source

Bounding the Dimension-5 Seesaw Portal with non-pointing photon searches

Journal of High Energy Physics
The addition of d = 5 operators to the Seesaw model leads to the Dimension-5 Seesaw Portal. Here, two new operators provide interactions for the heavy sterile neutrinos.
L. Duarte, J. Jones-Pérez, C. Manrique-Chavil   +2 more
doaj   +1 more source

Searching for heavy sterile neutrinos in kaon decays

, 2017
We present here a study of the impact of a heavy neutrino (or heavy neutral lepton) on leptonic and semileptonic kaon decays. We used a simplified model consisting of 3 light neutrinos responsible for neutrino oscillations and a heavy sterile neutrino. We found that it can lead to large deviations from the Standard Model predictions for leptonic decays,
openaire   +2 more sources

Extending the sensitivity of heavy sterile neutrino searches with solar neutrino experiments

9 pages, 12 figures.
Zhu, Yutao, Fu, Haoyang, Luo, Wentai, Chen, Shaomin, Yang, Litao, Zhang, Zhicai   +5 more
openaire   +2 more sources

Freeze-in leptogenesis with sterile neutrino self-interactions

Journal of High Energy Physics
Sterile neutrinos are a simple yet compelling addition to the Standard Model. For right-handed neutrinos with masses below the electroweak scale, leptogenesis can proceed through CP-violating oscillations of the sterile neutrinos. This is known as ARS or
María Dias Astros, Stefan Vogl
doaj   +1 more source

Decays in Flight of Heavy Sterile Neutrinos in the MiniBooNE Detector

Journal of Physics: Conference Series, 2015
Heavy sterile neutrinos in the O(10) MeV mass range would be produced in neutrino superbeams, from pion and kaon decays. In short-baseline experiments and for sufficiently long lifetimes, such steriles can propagate to the detector and decay to electrons or photons, leading to signatures which may be mis-identified for oscillation driven electron quasi-
openaire   +1 more source

Heavy neutral leptons and top quarks in effective field theory

Journal of High Energy Physics
We study the phenomenology of heavy neutral leptons (HNLs) at the LHC in effective field theory, concentrating on d = 6 operators with top quarks.
Rebeca Beltrán, Giovanna Cottin, Julian Günther, Martin Hirsch, Arsenii Titov, Zeren Simon Wang   +5 more
doaj   +1 more source