Results 51 to 60 of about 929,246 (358)

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Beyond the standard model of particle physics [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
The Large Hadron Collider (LHC) at CERN and its experiments were conceived to tackle open questions in particle physics. The mechanism of the generation of mass of fundamental particles has been elucidated with the discovery of the Higgs boson. It is clear that the standard model is not the final theory.
openaire   +2 more sources

Neutrinos and collider physics

open access: yesNew 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   +2 more
doaj   +1 more source

Neutrinos and physics beyond the standard model [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1997
A brief sketch is made of the present observational status of neutrino physics, with emphasis on the hints that follow from solar and atmospheric neutrino observations, as well as cosmological data on the amplitude of primordial density fluctuations. I also briefly review the ways to account for the observed anomalies and some of their implications.
openaire   +3 more sources

Strongly coupled gauge theories towards physics beyond the Standard Model [PDF]

open access: yesProceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023)
Strongly coupled gauge theories provide an ultra-violet realization of new physics models for physics beyond the Standard Model of particle physics arising from composite dynamics.
Jong-Wan Lee
semanticscholar   +1 more source

Exotic sterile neutrinos and pseudo-Goldstone phenomenology

open access: yesJournal of High Energy Physics, 2019
We study the phenomenology of a light (GeV scale) sterile neutrino sector and the pseudo-Goldstone boson (not the majoron) associated with a global symmetry in this sector that is broken at a high scale.
Bibhushan Shakya, James D. Wells
doaj   +1 more source

Probing dark matter freeze-in with long-lived particle signatures: MATHUSLA, HL-LHC and FCC-hh

open access: yesJournal of High Energy Physics, 2020
Collider searches for long-lived particles yield a promising avenue to probe the freeze-in production of Dark Matter via the decay of a parent particle.
J.M. No, P. Tunney, B. Zaldivar
doaj   +1 more source

Cosmology with a very light L μ − L τ gauge boson

open access: yesJournal of High Energy Physics, 2019
In this paper, we explore in detail the cosmological implications of an abelian L μ − L τ gauge extension of the Standard Model featuring a light and weakly coupled Z′.
Miguel Escudero   +3 more
doaj   +1 more source

Unstable cosmic neutrino capture

open access: yesJournal of High Energy Physics, 2022
Future direct observations of the Cosmic Neutrino Background (CνB) have the potential to explore a neutrino lifetime, especially in the region of the age of the universe, t 0 = 4.35 × 1017 s.
Kensuke Akita   +2 more
doaj   +1 more source

Assessing perturbativity and vacuum stability in high-scale leptogenesis

open access: yesJournal of High Energy Physics, 2018
We consider the requirements that all coupling constants remain perturbative and the electroweak vacuum metastable up to the Planck scale in high-scale thermal leptogenesis, in the context of a type-I seesaw mechanism. We find a large region of the model
Seyda Ipek   +2 more
doaj   +1 more source

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