Results 21 to 30 of about 5,564 (231)
Leptogenesis and Dark Matter–Nucleon Scattering Cross Section in the SE6SSM
Universe, 2023 The E6-inspired extension of the minimal supersymmetric (SUSY) standard model (MSSM) with an extra U(1)N gauge symmetry, under which right-handed neutrinos have zero charge, involves exotic matter beyond the MSSM to ensure anomaly cancellation.
Roman Nevzorov
doaj +1 more source
Baryogenesis and leptogenesis from supercooled confinement [PDF]
Journal of High Energy Physics, 2023 We propose a framework of baryogenesis and leptogenesis that relies on a supercooled confining phase transition (PT) in the early universe. The baryon or lepton asymmetry is sourced by decays of hadrons of the strong dynamics after the PT, and it is ...
Maximilian Dichtl +3 more
semanticscholar +1 more source
Relaxing the W′ Constraint on Compact Extradimension
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In this paper, we study the constraint on brane tension and compactification scale for models with brane fluctuations using the results from the direct search of W′ at 13 TeV LHC, with an integrated luminosity of 36.1fb−1, in the case for which branon forms the entire cold dark matter.
Mathew Thomas Arun +1 more
wiley +1 more source
Second leptogenesis: Unraveling the baryon-lepton asymmetry discrepancy [PDF]
Journal of High Energy Physics, 2023 We propose a novel scenario to explain the matter-antimatter asymmetry by twofold leptogenesis, wherein heavy Majorana neutrinos exhibit temperature-dependent masses and engage in CP-violating decays.
YeolLin ChoeJo +3 more
semanticscholar +1 more source
Physical Review D, 2014 27 pages, 6 figures, 2 tables, submitted to physical review ...
Krauss, Lawrence M. +2 more
openaire +2 more sources
T‐Odd Anomalous Interactions of the Top‐Quark at the Large Hadron Collider
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We study the effects of T‐odd interactions of top‐quark via the pair production of the top‐quark in the semileptonic detection modes at the Large Hadron Collider by means of the T‐odd observables constructed through the momenta of the observed decay products of the top (and anti‐top)‐quark for a wide range of CP‐violating scale Λ.
Apurba Tiwari +2 more
wiley +1 more source
LIGO-Virgo constraints on dark matter and leptogenesis triggered by a first order phase transition at high scale [PDF]
Physical Review D, 2023 We study the possibility of constraining a scenario with high scale first order phase transition (FOPT) responsible for the cogenesis of baryon and dark matter using gravitational wave (GW) (non)observations.
D. Borah, A. Dasgupta, Indrajit Saha
semanticscholar +1 more source
International Journal of Modern Physics A, 2018 We review the current status of the leptogenesis scenario originally proposed by Akhmedov, Rubakov and Smirnov (ARS). It takes place in the parametric regime where the right-handed neutrinos are at the electroweak scale or below and the CP-violating effects are induced by the coherent superposition of different right-handed mass eigenstates.
Drewes, Marco +8 more
openaire +4 more sources
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 Leptonic CP violating phase δCP in the light neutrino sector and leptogenesis via present matter‐antimatter asymmetry of the Universe entails each other. Probing CP violation in light neutrino oscillation is one of the challenging tasks today. The reactor mixing angleθ13measured in reactor experiments, LBL, and DUNE with high precision in neutrino ...
Gayatri Ghosh, Theocharis Kosmas
wiley +1 more source
Gravitational wave pathway to testable leptogenesis [PDF]
Physical Review D, 2022 We analyze the classically scale-invariant $B-L$ model in the context of resonant leptogenesis with the recently proposed mass-gain mechanism. The $B-L$ symmetry breaking in this scenario is associated with a strong first order phase transition that ...
A. Dasgupta +3 more
semanticscholar +1 more source