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Minimal flavour violation: an effective field theory approach [PDF]
Nuclear Physics B, 2002 We present a general analysis of extensions of the Standard Model which satisfy the criterion of Minimal Flavour Violation (MFV). We define this general framework by constructing a low-energy effective theory containing the Standard Model fields, with ...
D'Ambrosio, G. +3 more
core +8 more sources
Minimal complete tri-hypercharge theories of flavour [PDF]
Journal of High Energy PhysicsThe 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 ...
Mario Fernández Navarro +2 more
doaj +5 more sources
Lepton-flavour violating decays in theories with dimension 6 operators [PDF]
EPJ Web of Conferences, 2016 Despite a large experimental effort, so far no evidence for flavour-violating decays of charged leptons such as l i → l j γ and l i → l j l k l k has been found.
Giovanni Marco Pruna +2 more
semanticscholar +8 more sources
Minimal flavour deconstruction [PDF]
Journal of High Energy Physics, 2023 We construct two concrete examples of flavour non-universal gauge theories which, after the inclusion of all d ≤ 4 gauge invariant operators, allow to describe the observed pattern of flavour in the charged fermion sector without any small Yukawa ...
Riccardo Barbieri, Gino Isidori
doaj +2 more sources
Flavour oscillations in pseudo-Hermitian quantum theories [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2023), 2023 This note summarises recent progress in the formulation of flavour mixing and oscillations in pseudo-Hermitian quantum theories with non-Hermitian mass mixing matrices.
Robert Mason +2 more
semanticscholar +4 more sources
Generalised CP symmetry in modular-invariant models of flavour [PDF]
Journal of High Energy Physics, 2019 The formalism of combined finite modular and generalised CP (gCP) sym-metries for theories of flavour is developed. The corresponding consistency conditions for the two symmetry transformations acting on the modulus τ and on the matter fields are derived.
P.P. Novichkov +3 more
doaj +2 more sources
Goldstone bosons in effective theories with spontaneously broken flavour symmetry [PDF]
, 2010 The flavour symmetry of the Standard Model (SM) gauge sector is broken by the fermion Yukawa couplings. Promoting the Yukawa matrices to scalar spurion fields, one can break the flavour symmetry spontaneously by giving appropriate vacuum expectation ...
Albrecht Me +5 more
openalex +3 more sources
Renormalisation group analysis of scalar Leptoquark couplings addressing flavour anomalies: emergence of lepton-flavour universality [PDF]
Journal of High Energy Physics, 2023 Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays b→cτν¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym}
M. Fedele, U. Nierste, Felix Wuest
semanticscholar +1 more source
Flavour-kinematics duality for Goldstone modes [PDF]
Journal of High Energy Physics, 2022 Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon.
Dijs de Neeling, D. Roest, S. Veldmeijer
semanticscholar +1 more source
Chern-Simons-Trinion theories: One-form symmetries and superconformal indices [PDF]
Journal of High Energy Physics, 2023 We study 3d theories containing N\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin ...
Riccardo Comi +2 more
semanticscholar +1 more source