Results 11 to 20 of about 825,342 (148)

Higgs inflation, vacuum stability, and leptogenesis

Journal 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, Akio Sugamoto, Tatsu Takeuchi, Kimiko Yamashita   +3 more
doaj   +1 more source

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

Journal 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, Jordan Bernigaud, Björn Herrmann   +2 more
doaj   +1 more source

Physics Beyond the Standard Model [PDF]

, 2016
In these three lectures I review the need to go beyond the Standard Glashow- Weinberg-Salam Model and discuss some of the approaches that are explored in this direction.Comment: 5 pages, contribution to the CERN-Latin-American School of High-Energy ...
Rosenfeld, R.
core   +3 more sources

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

Journal 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, Dorival Gonçalves, Tathagata Ghosh, Huai-Ke Guo, Kuver Sinha   +4 more
doaj   +1 more source

Gravitational tests of electroweak relaxation

Journal 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, Enrico Bertuzzo, Martín Arteaga Tupia   +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

Journal 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

b Physics Beyond the Standard Model [PDF]

, 2002
I review the signals for New Physics in CP-violating measurements in B and Lambda_b decays. I also discuss ways of identifying this New Physics, should such a signal be found.Comment: 10 pages, LaTeX, 1 figure, ps file included.
Abe, Albajar, Aleksan, Aleksan, Aleksan, Ali, Ali, Atwood, Atwood, Barenboim, Bensalem, Bensalem, Branco, Buchalla, Datta, David London, Dunietz, Fleischer, Fleischer, Gronau, Gronau, Gronau, Gronau, Gronau, Gronau, Gronau, Gronau, Grossman, Hiller, Hoecker, Hou, Leroux, London, London, London, Nir, Scares, Silva, Wolfenstein   +38 more
core   +2 more sources

Shining light on the scotogenic model: interplay of colliders and cosmology

Journal of High Energy Physics, 2020
In the framework of the scotogenic model, which features radiative generation of neutrino masses, we explore light dark matter scenario. Throughout the paper we chiefly focus on keV-scale dark matter which can be produced either via freeze-in through the
Sven Baumholzer, Vedran Brdar, Pedro Schwaller, Alexander Segner   +3 more
doaj   +1 more source

Neutrinos and collider physics

New Journal of Physics, 2015
We review the collider phenomenology of neutrino physics and the synergetic aspects at energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass mechanism. In particular, we focus on seesaw models within the minimal setup as
Frank F Deppisch, P S Bhupal Dev, Apostolos Pilaftsis   +2 more
doaj   +1 more source

Recent Developments in Physics Beyond the Standard Model [PDF]

, 1999
In this talk I discuss some recent developments in physics beyond the Standard Model. After some initial comments on neutrino masses, I discuss the status of low-energy supersymmetry and finally turn to describing some recent work in theories with extra ...
Giudice, G. F.
core   +3 more sources