Results 31 to 40 of about 6,824 (208)
Heavy sterile neutrinos in stellar core-collapse [PDF]
Physical Review D, 2018 We perform spherically symmetric simulations of the core collapse of a single progenitor star of zero age main sequence mass $M_{\rm ZAMS} = 15 \, M_{\odot}$ with two models of heavy sterile neutrinos in the mass range of hundred MeV$/c^2$. According to both models, these hypothetical particles are copiously produced in the center, stream outwards a ...
Rembiasz, Tomasz +5 more
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A STERILE NEUTRINO NEEDED FOR HEAVY-ELEMENT NUCLEOSYNTHESIS [PDF]
Particles, Strings and Cosmology (PASCOS 99), 2000 7 pages, 1 figure, PASCOS '99 conference ...
openaire +2 more sources
Constraints on NJL four-fermion effective interactions from neutrinoless double beta decay
Journal of High Energy Physics, 2023 We study the contribution of a heavy right-handed Majorana neutrino to neutrinoless double beta decay (0νββ) via four-fermion effective interactions of Nambu-Jona-Lasinio (NJL) type.
L. Pacioselli +3 more
doaj +1 more source
Cosmological constraints on heavy sterile neutrinos
Journal of Physics: Conference Series, 2021 Abstract We consider heavy sterile neutrinos νs , with mass in the range 10 MeV ∼ ms ∼ mπ ∼ 135 MeV, thermally produced in the early universe and freezing out after the QCD phase transition.
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Journal of High Energy Physics, 2023 A muon collider could produce the heavier Standard Model particles with a boost, for example in resonant processes such as μ − μ + → h or μ − μ → Z. We propose machine configurations that produce the boost (asymmetric beam energies, tilted beams) and ...
Daniele Barducci, Alessandro Strumia
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 +4 more
wiley +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 +3 more
wiley +1 more source
WIMPs in a 3-3-1 model with heavy sterile neutrinos [PDF]
Physical Review D, 2011 26 pages, 14 figures; A new symmetry was identified in the model and a mistake was corrected which discards one of the scalars as CDM candidate but without affecting the main conclusions; The text was ...
Mizukoshi, J. K. +3 more
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Naturally light sterile neutrinos [PDF]
, 1999 A simple model to accommodate light sterile neutrinos naturally with large mixing with the usual neutrinos has been proposed. The standard model gauge group is extended to include an SU(2)S gauge symmetry. Heavy triplet Higgs scalars give small masses to
Sarkar, Utpal
core +1 more source
Sensitivity of the FACET experiment to Heavy Neutral Leptons and Dark Scalars
Journal of High Energy Physics, 2023 We analyze the potential of the recently proposed experiment FACET (Forward-Aperture CMS ExTension) to search for new physics. As an example, we consider the models of Higgs-like scalars with cubic and quartic interactions and Heavy Neutral Leptons.
Maksym Ovchynnikov +2 more
doaj +1 more source