Zobrazeno 1 - 10
of 3 195
pro vyhledávání: '"King, Stephen A."'
We investigate the properties of domain walls arising from non-Abelian discrete symmetries, which we refer to as non-Abelian domain walls. We focus on $S_4$, one of the most commonly used groups in lepton flavour mixing models. The spontaneous breaki
Externí odkaz:
http://arxiv.org/abs/2409.16359
We investigate the possibility that primordial black holes (PBHs) can be formed from large curvature perturbations generated during the waterfall phase transition in a supersymmetric scenario where sneutrino is the inflaton in a hybrid inflationary f
Externí odkaz:
http://arxiv.org/abs/2407.15082
Finite modular family symmetry can emerge from top-down approaches based on heterotic string theory or Type IIB string theory. We show that, in addition to such approaches, it can also emerge from local F-Theory bottom-up constructions. As a first ex
Externí odkaz:
http://arxiv.org/abs/2407.06618
We study thermal leptogenesis in realistic supersymmetric flipped $SU(5)\times U(1)$ unification. As up-type quarks and neutrinos are arranged in the same multiplets, they exhibit strong correlations, and it is commonly believed that the masses of ri
Externí odkaz:
http://arxiv.org/abs/2407.02701
Autor:
King, Stephen F., Wang, Xin
Publikováno v:
JCAP 07 (2024) 073
In this paper we show that it is possible to achieve successful hilltop inflation in which the inflaton is identified as the modulus field in a modular invariant theory. The dilaton plays a crucial role in shaping the potential. Modular invariant gau
Externí odkaz:
http://arxiv.org/abs/2405.08924
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 compressed
Externí odkaz:
http://arxiv.org/abs/2404.19338
The spontaneous breaking of a $U(1)$ symmetry via an intermediate discrete symmetry may yield a hybrid topological defect of \emph{domain walls bounded by cosmic strings}. The decay of this defect network leads to a unique gravitational wave signal s
Externí odkaz:
http://arxiv.org/abs/2404.16931
Publikováno v:
JHEP 07 (2024) 147
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 "flavour decons
Externí odkaz:
http://arxiv.org/abs/2404.12442
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 triplet or si
Externí odkaz:
http://arxiv.org/abs/2404.06520
Publikováno v:
JHEP 02 (2024) 160
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 symmetries.
Externí odkaz:
http://arxiv.org/abs/2312.09255