We present a comprehensive review of physics effects generated by leptoquarks (LQs), ie,
hypothetical particles that can turn quarks into leptons and vice versa, of either scalar or …

Grand unified theories, in which the strong and electroweak interactions are embedded into
an underlying theory with a single gauge coupling constant, are reviewed. A detailed …

We review the current information about the eigenvalues of the quark mass matrix. The
theoretical problems involved in a determination of the running masses mu, md, ms, mc and …

This is a review paper about neutrino mass and mixing and flavour model building strategies
based on discrete family symmetry. After a pedagogical introduction and overview of the …

This is a review article about neutrino mass and mixing and flavour model building
strategies based on modular symmetry. After an introduction to neutrino mass and lepton …

The successful prediction of the weak mixing angle suggests that the effective theory
beneath the grand unification scale is the minimal supersymmetric standard model (MSSM) …

Most of the free parameters in the Standard Model (SM)—a quantum field theory which has
successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all …

Abstract The Standard Model lacks an organizing principle to describe quark and lepton
“flavours”. Neutrino oscillation experiments show that leptons mix very differently from …

One of the fundamental new symmetries of nature that has been the subject of intense
discussion in particle physics of the past decade is the symmetry between bosons and …

Measurements of the ratio of B→ K* μ μ to B→ K* ee branching fractions, RK*, by the LHCb
Collaboration strengthen the hints from previous studies with pseudoscalar kaons, RK, for …