Results 11 to 20 of about 1,758 (307)

Plan B: new Z′ models for b → sℓ + ℓ − anomalies

Journal of High Energy Physics, 2023
Measurements of b → sμ + μ − transitions indicate that there may be a new physics field coupling to di-muon pairs associated with the b to s flavour transition.
Ben Allanach, Anna Mullin
doaj   +1 more source

Modular flavor symmetry and vector-valued modular forms

Journal of High Energy Physics, 2022
We revisit the modular flavor symmetry from a more general perspective. The scalar modular forms of principal congruence subgroups are extended to the vector-valued modular forms, then we have more possible finite modular groups including Γ N and Γ N ′ $$
Xiang-Gan Liu, Gui-Jun Ding
doaj   +1 more source

Two string theory flavours of generalised Eisenstein series

Journal of High Energy Physics, 2023
Abstract Generalised Eisenstein series are non-holomorphic modular invariant functions of a complex variable, τ, subject to a particular inhomogeneous Laplace eigenvalue equation on the hyperbolic upper-half τ-plane. Two infinite classes of such functions arise quite naturally within different string theory contexts.
Dorigoni, Daniele, Treilis, Rudolfs
openaire   +4 more sources

Exploring the flavor structure of quarks and leptons with reinforcement learning

Journal of High Energy Physics, 2023
We propose a method to explore the flavor structure of quarks and leptons with reinforcement learning. As a concrete model, we utilize a basic value-based algorithm for models with U(1) flavor symmetry.
Satsuki Nishimura, Coh Miyao, Hajime Otsuka   +2 more
doaj   +1 more source

Aspects of flavour and supersymmetry in F-theory GUTs [PDF]

Journal of High Energy Physics, 2010
We study the constraints of supersymmetry on flavour in recently proposed models of F-theory GUTs. We relate the topologically twisted theory to the canonical presentation of eight-dimensional super Yang-Mills and provide a dictionary between the two.
Conlon, Joseph P, Palti, Eran
openaire   +5 more sources

Flavours of Gauge theories

, 2011
Albert Deuzeman
openalex   +2 more sources

Fermion masses, critical behavior and universality

Journal of High Energy Physics, 2023
We look for signals of critical behavior in the Yukawa sector. By reviewing a set of models for the fermion masses, we select those where a symmetry-breaking order parameter sits at a transition point between a disordered phase and an ordered one.
Ferruccio Feruglio
doaj   +1 more source

Littlest modular seesaw

Journal of High Energy Physics, 2023
We present the first complete model of the Littlest Modular Seesaw, based on two right-handed neutrinos, within the framework of multiple modular symmetries, justifying the use of multiple moduli fields which take their values at 3 specific stabilizers ...
Ivo de Medeiros Varzielas, Steve F. King, Miguel Levy   +2 more
doaj   +1 more source

Minimally modified Fritzsch texture for quark masses and CKM mixing

Journal of High Energy Physics, 2023
The Standard Model does not constrain the form of the Yukawa matrices and thus the origin of fermion mass hierarchies and mixing pattern remains puzzling.
Benedetta Belfatto, Zurab Berezhiani
doaj   +1 more source

Common origin of θ 13 and dark matter within the flavor symmetric scoto-seesaw framework

Journal of High Energy Physics, 2022
To understand the observed pattern of neutrino masses and mixing as well as to account for the dark matter we propose a hybrid scoto-seesaw model based on the A 4 discrete flavor symmetry.
Joy Ganguly, Janusz Gluza, Biswajit Karmakar   +2 more
doaj   +1 more source