Results 41 to 50 of about 929,246 (358)

New approach to search for parity-even and parity-odd time-reversal violation beyond the Standard Model in a storage ring

open access: yesPhysics Letters B, 2020
Time-reversal breaking and parity-conserving millistrong interactions, suggested in 1965, still remain a viable mechanism of CP-violation beyond the Standard Model.
N.N. Nikolaev   +3 more
doaj   +1 more source

Higgs inflation, vacuum stability, and leptogenesis

open access: yesJournal of High Energy Physics, 2020
We consider the introduction of a complex scalar field carrying a global lepton number charge to the Standard Model and the Higgs inflation framework. The conditions are investigated under which this model can simultaneously ensure Higgs vacuum stability
Neil D. Barrie   +3 more
doaj   +1 more source

Sp(4) gauge theories and beyond the standard model physics [PDF]

open access: yesEPJ Web of Conferences, 2021
We review numerical results for models with gauge group Sp(2N), discussing the glueball spectrum in the large-N limit, the quenched meson spectrum of Sp(4) with Dirac fermions in the fundamental and in the antisymmetric representation and the Sp(4) gauge
B. Lucini   +9 more
semanticscholar   +1 more source

PRyMordial: the first three minutes, within and beyond the standard model [PDF]

open access: yesThe European Physical Journal C, 2023
In this work we present PRyMordial: A package dedicated to efficient computations of observables in the Early Universe with the focus on the cosmological era of Big Bang Nucleosynthesis (BBN).
Anne-Katherine Burns, T. Tait, M. Valli
semanticscholar   +1 more source

Tensor Charges and their Impact on Physics Beyond the Standard Model [PDF]

open access: yesProceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021), 2021
R. E. Smail,a,∗ R. Horsley, Y. Nakamura, H. Perlt, D. Pleiter, P. E. L. Rakow, f G. Schierholz, H. St¥ uben, R. D. Young and J. M. Zanotti CSSM, Department of Physics, University of Adelaide, Adelaide SA 5005, Australia School of Physics and Astronomy ...
R. Smail   +9 more
semanticscholar   +1 more source

Dark matter and lepton flavour phenomenology in a singlet-doublet scotogenic model

open access: yesJournal of High Energy Physics, 2021
We study the dark matter phenomenology of scotogenic frameworks through a rather illustrative model extending the Standard Model by scalar and fermionic singlets and doublets.
Maud Sarazin   +2 more
doaj   +1 more source

Di-Higgs production in the 4b channel and gravitational wave complementarity

open access: yesJournal of High Energy Physics, 2020
We present a complementarity study of gravitational waves and double Higgs production in the 4b channel, exploring the gauge singlet scalar extension of the SM.
Alexandre Alves   +4 more
doaj   +1 more source

Gravitational tests of electroweak relaxation

open access: yesJournal of High Energy Physics, 2021
We consider a scenario in which the electroweak scale is stabilized via the relaxion mechanism during inflation, focussing on the case in which the back-reaction potential is generated by the confinement of new strongly interacting vector-like fermions ...
Daniele Barducci   +2 more
doaj   +1 more source

A potentially detectable gamma-ray line in the Fermi Galactic center excess — in light of one-step cascade annihilations of secluded (vector) dark matter via the Higgs portal

open access: yesJournal of High Energy Physics, 2020
We show the presence of a potentially detectable gamma-ray line in the Fermi Galactic center excess in light of the secluded (vector) dark matter (DM) model in which the hidden scalar, nearly degenerate with DM in mass, mediates the interaction of the ...
Kwei-Chou Yang
doaj   +1 more source

anyH3: precise predictions for the trilinear Higgs coupling in the Standard Model and beyond [PDF]

open access: yesThe European Physical Journal C, 2023
The trilinear Higgs coupling $$\lambda _{hhh}$$ λ hhh of the detected Higgs boson is an important probe for physics beyond the Standard Model. Correspondingly, improving the precision of the theoretical predictions for this coupling as well as the ...
H. Bahl   +3 more
semanticscholar   +1 more source

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