Results 61 to 70 of about 42,326 (173)

Radiative Majorana neutrino masses in a parity solution to the strong CP problem

Journal of High Energy Physics
The strong CP problem is solved in Parity symmetric theories, with the electroweak gauge group containing SU(2) L × SU(2) R broken by the minimal set of Higgs fields. Neutrino masses may be explained by adding the same number of gauge singlet fermions as
Lawrence J. Hall, Keisuke Harigaya, Yogev Shpilman   +2 more
doaj   +1 more source

Supernovae and sterile neutrinos

, 2011
Motivated by the recent hints for sterile neutrinos from reactor anomalies, we discuss active-sterile conversions in an electron-capture supernova using a (2 active + 1 sterile) scenario.
Tamborra, Irene
core   +1 more source

Spinor-vector duality and sterile neutrinos in string derived models [PDF]

, 2020
The MiniBooNE collaboration found evidence for the existence of sterile neutrinos, at a mass scale comparable to the active left-handed neutrinos. While sterile neutrinos arise naturally in large volume string scenarios, they are more difficult to ...
Faraggi, Alon E
core   +1 more source

Constraining the SMEFT extended with sterile neutrinos at FCC-ee

Journal of High Energy Physics
We investigate how extensions of the Standard Model (SM) involving heavy neutral leptons (HNLs) can be probed at FCC-ee, the proposed high-energy circular e + e − collider.
Patrick D. Bolton, Frank F. Deppisch, Suchita Kulkarni, Chayan Majumdar, Wenna Pei   +4 more
doaj   +1 more source

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

Sharpening new physics searches in neutrino oscillations with DUNE-PRISM

Journal of High Energy Physics
Upcoming long-baseline neutrino oscillation experiments such as DUNE aim to achieve unprecedented precision, but their physics reach is ultimately constrained by systematic uncertainties in neutrino flux predictions and neutrino-nucleus cross sections ...
Josu Hernández-García, Jacobo López-Pavón, Salvador Urreas   +2 more
doaj   +1 more source

Supernova bound on keV-mass sterile neutrinos

, 2011
In this talk, I first explain why the keV-mass sterile neutrinos, slightly mixing with ordinary neutrinos, are interesting in particle astrophysics.
Zhou, Shun
core   +1 more source

Long-lived HNLs via ALP portal at the LHC

Journal of High Energy Physics
Heavy neutral leptons (HNLs) and axion-like particles (ALPs) are both considered well-motivated candidates for beyond the standard model (BSM) physics. If ALPs with sizable couplings to gluons exist, they will be abundantly produced at the LHC. Therefore,
Rebeca Beltrán, Chandan Hati, Martin Hirsch, Ana Martín-Galán   +3 more
doaj   +1 more source

Search for heavy sterile neutrinos in trileptons at the LHC

, 2017
We present a search strategy for both Dirac and Majorana sterile neutrinos from the purely leptonic decays of W$^±$ → e$^±$ e$^±$ μ$^\mp$ $\nu$ and μ$^±$ μ$^±$ emnplus $\nu$ at the 14 TeV LHC.
Kim, C. S., Claudio O. Dib, Kechen Wang, Dib, Claudio O., Wang, Kechen, C. S. Kim   +5 more
core   +1 more source

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