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Related papers: Flavour non-conservation in goldstino interactions

200 papers

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

In this paper we study flavor violation in supersymmetric models with gauged flavor symmetries. There are several sources of flavor violation in these theories. The dominant flavor violation is the tree-level $D$-term contribution to scalar…

High Energy Physics - Phenomenology · Physics 2016-09-06 Tatsuo Kobayashi , Hiroaki Nakano , Haruhiko Terao , Koichi Yoshioka

We study the implications of a successful leptogenesis within the framework of Minimal Lepton Flavour Violation combined with radiative resonant leptogenesis and the PMNS matrix being the only source of CP violation, which can be obtained…

High Energy Physics - Phenomenology · Physics 2008-11-26 Selma Uhlig

We reappraise the flavour changing neutral currents (FCNC) problem in string--derived supergravity models. We overview and classify possible sources of flavour violation and find that the problem often does not arise in classes of models…

High Energy Physics - Phenomenology · Physics 2009-11-11 Piotr H. Chankowski , Oleg Lebedev , Stefan Pokorski

Non-Standard neutrino Interactions (NSI) are vector contact interactions involving two neutrinos and two first generation fermions, which can affect neutrino propagation in matter. SU(2) gauge invariance suggests that NSI should be…

High Energy Physics - Phenomenology · Physics 2020-02-24 Sacha Davidson , Martin Gorbahn

In this talk, I briefly review a selection of SUSY effects in B physics. First, I consider models with Minimal Flavour Violation. Then I discuss SUSY models with new sources of flavour violation in squark mass matrices, analyzing present…

High Energy Physics - Phenomenology · Physics 2009-11-07 L. Silvestrini

We consider models of supersymmetry which can incorporate sizeable mixing between different generations of sfermions. While the mixing is constrained by the non-observation of various flavour changing neutral current (FCNC) processes, there…

High Energy Physics - Phenomenology · Physics 2016-02-03 Monoranjan Guchait , Abhishek M. Iyer , Rickmoy Samanta

The neutrino flavor mixing may induce rich flavor and CP violating phenomena in the SUSY GUTs. In this paper we discuss the hadronic EDMs and the correlation among low-energy processes induced by the mixings between second and third…

High Energy Physics - Phenomenology · Physics 2007-05-23 Junji Hisano

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

Supersymmetric theories involving a spontaneously broken flavor symmetry can lead to fermion masses which vanish at tree level but are generated by radiative corrections. In the context of supersymmetric theories with minimal low energy…

High Energy Physics - Phenomenology · Physics 2009-10-28 Nima Arkani-Hamed , Hsin-Chia Cheng , L. J. Hall

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 2019-05-15 Samuel J. Rowley , Jordan Bernigaud , Björn Herrmann , Stephen F. King

The Littlest Higgs Model with T-Parity (LHT) contains new sources of flavor and CP violation both in the quark and lepton sector. These have their origin in interactions of ordinary fermions with mirror fermions mediated by new heavy gauge…

High Energy Physics - Phenomenology · Physics 2007-10-11 Bjoern Duling

We discuss the possibility of new sources of flavour violation in the squark sector of supersymmetric models in the context of the dark matter relic density. We show that the corresponding non-minimal flavour violation terms in the squark…

High Energy Physics - Phenomenology · Physics 2011-11-10 Björn Herrmann , Michael Klasen , Quentin Le Boulc'h

We analyze lepton flavour violating transitions, leptonic magnetic dipole moments (MDMs) and electric dipole moments (EDMs) in a class of models characterized by the flavour symmetry A4 x Z3 x U(1)_{FN}, whose choice is motivated by the…

High Energy Physics - Phenomenology · Physics 2008-12-18 Ferruccio Feruglio , Claudia Hagedorn , Yin Lin , Luca Merlo

We present the results of an extensive analysis of lepton flavour violating decays in the Littlest Higgs model with T-parity (LHT). As lepton flavour violation is highly suppressed in the Standard Model by small neutrino masses, the LHT…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cecilia Tarantino

We present a framework where dark matter interacts with the Standard Model through a light, spin-0 mediator that couples chirally to pairs of different-flavor leptons. This flavor violating final state weakens bounds on new physics coupled…

High Energy Physics - Phenomenology · Physics 2017-04-05 Iftah Galon , Anna Kwa , Philip Tanedo

Lepton Flavor Violating (LFV) processes are clear signals of physics beyond the Standard Model. We investigate the possibility of measuring this kind of processes at present and foreseeable future muon-electron colliders, taking into…

High Energy Physics - Phenomenology · Physics 2020-12-15 Fabio Bossi , Paolo Ciafaloni

If R-parity violation turns out to be a true aspect of Nature, a speculation about its possible origin could add a new dimension to the supersymmetric flavour problem. It has been shown in the past by Barbieri, Hall and their collaborators…

High Energy Physics - Phenomenology · Physics 2009-10-30 Gautam Bhattacharyya

It can be expected from the result for the atmospheric neutrino by the SUPERKAMIOKANDE and the CHOOZ result that the the lepton-flavor violating (LFV) interaction between the second and third generations exits at the high energy scale. This…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Hisano

We discuss lepton flavour violating processes induced in the production and decay of heavy right-handed neutrinos at the LHC. Such particles appear in left-right symmetrical extensions of the Standard Model as the messengers of neutrino…

High Energy Physics - Phenomenology · Physics 2013-05-30 S. P. Das , F. F. Deppisch , O. Kittel , J. W. F. Valle