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Related papers: General squark flavour mixing: constraints, phenom…

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We explore signatures related to squark decays in the framework of non-minimally flavour-violating Supersymmetry. We consider a simplified model where the lightest squark consists of an admixture of charm and top flavour. By recasting the…

High Energy Physics - Phenomenology · Physics 2019-02-05 Amit Chakraborty , Motoi Endo , Benjamin Fuks , Björn Herrmann , Mihoko M. Nojiri , Priscilla Pani , Giacomo Polesello

Motivated by tensions between experimental measurements and SM predictions in $b\to s \ell^+\ell^-$ transitions, we present the first study of non-minimal flavour-violating Minimal Supersymmetric Standard Model (MSSM) scenarios contributing…

High Energy Physics - Phenomenology · Physics 2022-08-12 M. A. Boussejra , F. Mahmoudi , G. Uhlrich

Working within the context of the minimal supersymmetric standard model, we compare current bounds from quark flavor changing processes with current and upcoming bounds on lepton flavor violation. We assume supersymmetry breaking…

High Energy Physics - Phenomenology · Physics 2018-03-07 Sebastian A. R. Ellis , Aaron Pierce

We study quark flavour violation (QFV) in the squark sector of the Minimal Supersymmetric Standard Model (MSSM). We assume mixing between the second and the third squark generations, i.e. sc_R-st_{L,R} mixing mixing. We focus on QFV effects…

High Energy Physics - Phenomenology · Physics 2014-06-12 A. Bartl , H. Eberl , E. Ginina , B. Herrmann , K. Hidaka , W. Majerotto , W. Porod

We investigate the constraints on the flavour violating parameters from the decay B --> X_s gamma, taking into account the interplay of the various sources of flavour violation in the unconstrained MSSM. We present a systematic leading…

High Energy Physics - Phenomenology · Physics 2011-01-05 Thomas Besmer , Christoph Greub , Tobias Hurth

This dissertation investigates the flavor mixing effects in supersymmetric models on electroweak precision observables, Higgs boson mass predictions, B-physics observables, quark flavor violating Higgs decays, lepton flavor violating…

High Energy Physics - Phenomenology · Physics 2016-05-09 Muhammad Rehman

Starting from the effective-theory framework for Minimal Flavour Violation, we give a systematic definition of next-to-minimal (quark) flavour violation in terms of a set of spurion fields exhibiting a particular hierarchy with respect to a…

High Energy Physics - Phenomenology · Physics 2010-10-27 Th. Feldmann , Th. Mannel

We consider the flavor structure of the minimal supersymmetric standard model (MSSM) in the framework of `minimal flavor violation' (MFV). We show that, if one imposes the MFV structure at some scale, to a good accuracy the MFV…

High Energy Physics - Phenomenology · Physics 2008-11-26 Paride Paradisi , Michael Ratz , Roland Schieren , Cristoforo Simonetto

Minimal Flavour Violation in its strong or weak versions, based on $U(3)^3$ and $U(2)^3$ respectively, allows suitable extensions of the Standard Model at the TeV scale to comply with current flavour constraints in the quark sector. Here we…

High Energy Physics - Phenomenology · Physics 2016-01-27 Riccardo Barbieri , Fabrizio Senia

A suitably broken U(2)^3 symmetry acting on the first two generations of quarks and squarks is studied as a natural generalization of the Minimal Flavour Violation principle to the case of a hierarchical squark spectrum. A definite…

High Energy Physics - Phenomenology · Physics 2011-10-31 David M. Straub

We investigate the constraints on flavour-changing neutral heavy Higgs-boson decays H-> b \bar s from b -> s gamma bounds on the flavour-mixing parameters of the MSSM with non-minimal flavour violation (NMFV). In our analysis we include the…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Hahn , W. Hollik , J. I. Illana , S. Penaranda

Flavour symmetries in the dark sector are a theoretically motivated and phenomenologically appealing concept. The dark matter particle can be stabilised with the help of flavour symmetries, without the need to introduce an additional…

High Energy Physics - Phenomenology · Physics 2015-08-26 Monika Blanke

We explore the phenomenological implications on charged lepton flavor violating (LFV) processes from slepton flavor mixing within the Minimal Supersymmetric Standard Model. We work under the model-independent hypothesis of general flavor…

High Energy Physics - Phenomenology · Physics 2013-08-09 M. Arana-Catania , S. Heinemeyer , M. J. Herrero

We summarize briefly the CKM picture of flavour and CP violation that governs the models with minimal flavour violation (MFV). We then describe how this framework can be efficiently tested through particle-antiparticle mixing and rare $K$…

High Energy Physics - Phenomenology · Physics 2009-08-03 Andrzej J. Buras

We review aspects of the phenomenology of the MSSM with non-minimal flavour violation, including a discussion of important constraints and the sensitivity to fundamental scales.

High Energy Physics - Phenomenology · Physics 2007-12-06 Sebastian Jager

An inverted mass hierarchy in the squark sector, as in so-called "natural supersymmetry", requires non-universal boundary conditions at the mediation scale of supersymmetry breaking. We propose a formalism to define such boundary conditions…

High Energy Physics - Phenomenology · Physics 2015-06-18 Felix Brümmer , Sabine Kraml , Suchita Kulkarni , Christopher Smith

We consider the standard model (SM) quark flavor sector. We study its structure in a spurionic, symmetry oriented approach. The SM picture of flavor and CP violation is now experimentally verified, hence strong bounds on beyond the SM…

High Energy Physics - Phenomenology · Physics 2009-11-12 Gilad Perez

We study the effect of squark-generation mixing on gluino decays in the Minimal Supersymmetric Standard Model (MSSM). We show that due to the effect the quark-flavor violating (QFV) gluino decay branching ratio B(gluino -> c bar{t} (t…

High Energy Physics - Phenomenology · Physics 2010-05-12 K. Hidaka

We present a first update on the constraints on general MSSM scenarios with non-minimal sources of flavour violation (NMFV). Using the public code SuperIso, we present an up-to-date computation of the relevant Wilson coefficients related to…

High Energy Physics - Phenomenology · Physics 2021-11-16 M. A. Boussejra , F. Mahmoudi

We study CP-conserving non-minimal flavour violation in $A_4 \times SU(5)$ inspired Supersymmetric Grand Unified Theories (GUTs), focussing on the regions of parameter space where dark matter is successfully accommodated due to a light…

High Energy Physics - Phenomenology · Physics 2019-03-27 Jordan Bernigaud , Björn Herrmann , Stephen F. King , Samuel J. Rowley