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Related papers: MFV and the SUSY CP Problem

200 papers

The so-called supersymmetric flavour and CP problems are deeply related to the origin of flavour and hence to the origin of the SM Yukawa couplings themselves. We show that realistic SU(3) flavour symmetries with spontaneous CP violation…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. Calibbi , J. Jones-Perez , O. Vives

We review flavour and CP violations in the lepton sector as probes of new physics beyond the standard model and its minimal extensions accommodating massive neutrinos. After recalling the main experimental bounds and the future…

High Energy Physics - Phenomenology · Physics 2015-09-29 Ferruccio Feruglio

We discuss the discovery potential for New Physics of various measurements of CP violation. If nature is supersymmetric, then the flavor problem is even more mysterious than in the standard model. We show how we can learn about the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yosef Nir

We identify new room for CP violation in lepton flavor violating observables not bound by the electric dipole moment of leptons. By focusing on new physics in the muon-electron sector, we show that CP violation can make its first appearance…

High Energy Physics - Phenomenology · Physics 2024-08-05 Diego Redigolo , Michele Tammaro , Andrea Tesi

We consider the approximate U(2)^3 flavour symmetry exhibited by the quark sector of the Standard Model and all its possible breaking terms appearing in the quark Yukawa couplings. Taking an Effective Field Theory point of view, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Riccardo Barbieri , Dario Buttazzo , Filippo Sala , David M. Straub

We emphasize that the recent measurements of the B^0_s - bar B^0_s mass difference Delta M_s by the CDF and D0 collaborations offer an important model independent test of minimal flavour violation (MFV). The improved measurements of the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Monika Blanke , Andrzej J. Buras , Diego Guadagnoli , Cecilia Tarantino

We analyze constraints on low-energy flavour-changing sfermion mass terms, coming from FCNC and CP violating processes, in the model-independent framework of the mass insertion method. We discuss the relevance of these constraints as tests…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. Silvestrini

We give a pedagogical review of flavour and CP violation in the lepton sector, with a particular emphasis on new physics - and in particular supersymmetric - contributions to flavour and CP violating observables involving leptons.

High Energy Physics - Phenomenology · Physics 2007-05-23 Stéphane Lavignac

Our knowledge of quark-flavor physics and CP violation increased tremendously over the past five years. It is confirmed that the Standard Model correctly describes the dominant parts of the observed CP-violating and flavor-changing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andreas Hocker , Zoltan Ligeti

We propose that the flavor structure of the quark sector of the Standard Model is determined by a vectorial SU(2) flavor symmetry, which we dub Flavorspin, under which quarks transform as triplets. The fundamental Yukawa couplings are real…

High Energy Physics - Phenomenology · Physics 2015-07-03 Jeffrey Berryman , Daniel Hernández

Flavour models may display a relation between the CP-violating asymmetry for leptogenesis and low-energy parameters. If the flavour symmetry produces an exact mass independent lepton mixing scheme at leading order (with type I see-saw) the…

High Energy Physics - Phenomenology · Physics 2015-05-27 Ivo de Medeiros Varzielas

We study the minimal flavor violation in the context of string effective field theory. Stringy selection rules indicate that $n$-point couplings among fermionic zero-modes and lightest scalar modes in the string effective action are given…

High Energy Physics - Phenomenology · Physics 2022-01-12 Tatsuo Kobayashi , Hajime Otsuka

I review the status of CP violation in the Standard Model from the combination of flavour constraints within the CKMfitter frequentist approach and I describe studies of New Physics restricted to the Delta F=2 sector to explain recent…

High Energy Physics - Phenomenology · Physics 2015-06-11 Sébastien Descotes-Genon

Recent work on flavour changing neutral current effects in supersymmetric models is reviewed. The emphasis is put on new issues related to solutions to the flavour problem through new symmetries: GUTs, horizontal symmetries, modular…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. A. Savoy

We investigate the sensitivity of the next generation of flavor-based low-energy experiments to probe the supersymmetric parameter space in the context of the phenomenological MSSM (pMSSM), and examine the complementarity with direct…

High Energy Physics - Phenomenology · Physics 2016-02-24 Joshua Berger , Matthew W. Cahill-Rowley , Diptimoy Ghosh , JoAnne L. Hewett , Ahmed Ismail , Thomas G. Rizzo

Three possibilities for the origin of CP violation are discussed: (1) the Standard Model in which all CP violation is due to one parameter in the CKM matrix, (2) the superweak model in which all CP violation is due to new physics and (3)…

High Energy Physics - Phenomenology · Physics 2009-10-31 Lincoln Wolfenstein

In this article we review the phenomenological consequences of radiative flavor-violation (RFV) in the MSSM. In the model under consideration the U(3)^3 flavor symmetry of the gauge sector is broken in a first step to U(2)^3 by the top and…

High Energy Physics - Phenomenology · Physics 2011-11-03 Andreas Crivellin , Lars Hofer , Ulrich Nierste

We consider an explicit effective field theory example based on the Bousso-Polchinski framework with a large number N of hidden sectors contributing to supersymmetry breaking. Each contribution comes from four form quantized fluxes,…

High Energy Physics - Phenomenology · Physics 2020-04-08 Emilian Dudas , Priyanka Lamba , Sudhir K. Vempati

Treating the MSSM as an effective theory, we study the implications of having dimension five operators in the superpotential for flavor and CP-violating processes, exploiting the linear decoupling of observable effects with respect to the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Maxim Pospelov , Adam Ritz , Yudi Santoso

We study CP asymmetries in rare B decays within supersymmetry with a U(2)^3 flavour symmetry, motivated by the SUSY flavour and CP problems, the hierarchies in the Yukawa couplings and the absence so far of any direct evidence for SUSY.…

High Energy Physics - Phenomenology · Physics 2015-05-30 Riccardo Barbieri , Paolo Campli , Gino Isidori , Filippo Sala , David M. Straub