Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Stephen P. King"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-25 (2024)
Abstract The spontaneous breaking of a U(1) symmetry via an intermediate discrete symmetry may yield a hybrid topological defect of domain walls bounded by cosmic strings. The decay of this defect network leads to a unique gravitational wave signal s
Externí odkaz:
https://doaj.org/article/4c8fe229b07d491c85629571e73cc319
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-33 (2024)
Abstract The flavor structure of quarks and leptons and quark-lepton unification are studied in the framework of Pati-Salam models with A 4 modular symmetry. The three generations of the left-handed and right-handed fermions are assigned to be triple
Externí odkaz:
https://doaj.org/article/1f035308ec8d48fbbdf11e86de47adb0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 8, Pp 1-10 (2024)
Abstract The observed excesses in the search for neutralinos and charginos by ATLAS and CMS can be fitted simultaneously in the minimal supersymmetric standard model (MSSM) assuming a light higgsino mass, of magnitude less than about 250 GeV, and a c
Externí odkaz:
https://doaj.org/article/46b16ded4428450292f7da3f357ecce0
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-36 (2024)
Abstract The tri-hypercharge proposal introduces a separate gauged weak hypercharge assigned to each fermion family as the origin of flavour. This is arguably one of the simplest setups for building “gauge non-universal theories of flavour” or
Externí odkaz:
https://doaj.org/article/3695e910b96543aaa127edd8f4ffd079
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-32 (2024)
Abstract In this paper we discuss SU(5)3 with cyclic symmetry as a possible grand unified theory (GUT). The basic idea of such a tri-unification is that there is a separate SU(5) for each fermion family, with the light Higgs doublet(s) arising from t
Externí odkaz:
https://doaj.org/article/b12f8a0389884991a00eba857930c58d
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-31 (2024)
Abstract We explore the origin of Majorana masses within the majoron model and how this can lead to the generation of a distinguishable primordial stochastic background of gravitational waves. We first show how in the simplest majoron model only a co
Externí odkaz:
https://doaj.org/article/8b6492020db6483ba4d0430c5e22f815
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-25 (2024)
Abstract We study supersymmetric (SUSY) flipped SU(5) × U(1) unification, focussing on its predictions for proton decay, fermion masses and gravitational waves. We performed a two-loop renormalisation group analysis and showed that the SUSY flipped
Externí odkaz:
https://doaj.org/article/06571f7afbbe45b789cf8972bd7bba8e
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-28 (2024)
Abstract The so-called Golden Mass Relation provides a testable correlation between charged-lepton and down-type quark masses, that arises in certain flavor models that do not rely on Grand Unification. Such models typically involve broken family sym
Externí odkaz:
https://doaj.org/article/a0fc3a22d5a14d34a4719ee3cae99d73
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-27 (2023)
Abstract In type I seesaw models, the right-handed neutrinos are typically super-heavy, consistent with the generation of baryon asymmetry via standard leptogenesis. Primordial gravitational waves of cosmological origin provides a new window to probe
Externí odkaz:
https://doaj.org/article/2150baf57d244cc7ae2998621b123106
Tri-hypercharge: a separate gauged weak hypercharge for each fermion family as the origin of flavour
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-34 (2023)
Abstract We propose a tri-hypercharge (TH) extension of the Standard Model (SM) in which a separate gauged weak hypercharge is associated with each fermion family. In this way, every quark and lepton multiplet carries unique gauge quantum numbers und
Externí odkaz:
https://doaj.org/article/17a0db3a82d445ada787a75268a058e3