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Related papers: FCNC in SUSY models with non-universal A-terms

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We investigate a framework of the Minimal Supersymmetric Standard Model (MSSM) in which the quark and lepton flavor structure and suppression of flavor-changing neutral currents (FCNCs) are governed by non-invertible selection rules. By…

High Energy Physics - Phenomenology · Physics 2025-12-29 Yuichiro Nakai , Hajime Otsuka , Yoshihiro Shigekami , Zhihao Zhang

An analysis of the $b \rightarrow s\gamma$ is given in supergravity grand unification using the framework of the radiative breaking of the electro-weak symmetry under three separate sets of constraints:1) neutralino relic density does not…

High Energy Physics - Phenomenology · Physics 2009-09-25 Pran Nath , R. Arnowitt

Neutrinoless double beta decay ($\znbb$) induced by superparticle exchange is investigated. Such a supersymmetric (SUSY) mechanism of $\znbb$ decay arises within SUSY theories with R-parity non-conservation (\rp). We consider the minimal…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Hirsch , H. V. Klapdor-Kleingrothaus , S. G. Kovalenko

This talk discusses recent developments in the theory of inclusive radiative B decays, focusing mainly on non-perturbative aspects of the CP asymmetry in B->Xs gamma.

High Energy Physics - Phenomenology · Physics 2012-12-20 Gil Paz

In this analysis we explore the phenomenological constraints of models with non-holomorphic soft SUSY breaking terms in a beyond the MSSM scenario having identical particle content. The model referred as NHSSM shows various promising…

High Energy Physics - Phenomenology · Physics 2016-11-03 Utpal Chattopadhyay , Abhishek Dey

A mini-review of measurements of inclusive semileptonic $B \to X_c\ell\nu$ and radiative $B\to X_s\gamma$ decays is presented. The semileptonic $X_c$ mass moments are presented from Belle and BABAR. The inclusive $B\to X_s\gamma$ gamma…

High Energy Physics - Experiment · Physics 2010-12-01 Kyle J. Knoepfel

We provide a set of sum rules relating CP-averaged branching ratios and CP-asymmetries of the $B \to \pi K$ modes. They prove to be useful as a mechanism to `test' experimental data given our expectations of the size of isospin breaking. A…

High Energy Physics - Phenomenology · Physics 2014-11-17 Joaquim Matias

We investigate to what extent the experimental information on $B \to \pi\pi$ branching fractions and CP asymmetries can be used to better understand the QCD dynamics in these decays. For this purpose we decompose the independent isospin…

High Energy Physics - Phenomenology · Physics 2009-11-10 Thorsten Feldmann , Tobias Hurth

We present constraints on the CKM parameter gamma=arg(Vub*) formed within the framework of SU(3) symmetry and based on charmless hadronic B decays to K*+- pi-+ and other pseudoscalar-vector final states. For strong phases of O(10 degrees),…

High Energy Physics - Phenomenology · Physics 2007-05-23 Werner M. Sun

We present the fortran code SusyBSG version 1.1, which computes the branching ratio for the decay B -> Xs gamma in the MSSM with Minimal Flavor Violation. The computation takes into account all the available NLO contributions, including the…

High Energy Physics - Phenomenology · Physics 2011-02-15 G. Degrassi , P. Gambino , P. Slavich

We study the penguin induced transition $b\to s\ \gamma$ in the minimal N=1 supersymmetric extension of the Standard Model with radiative breaking of the electroweak group. We include the effects of one-loop corrections to the Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-28 Stefano Bertolini , Francesco Vissani

The new contribution to the non-diagonal matrix element M_12 of the neutral B_s meson system is investigated in a supersymmetric extension of the standard model based on the discrete Q6 family symmetry. We assume that CP is explicitly, but…

High Energy Physics - Phenomenology · Physics 2015-05-13 Kenji Kawashima , Jisuke Kubo , Alexander Lenz

We report a measurement of the inclusive charmless semileptonic branching fraction of B mesons in a sample of 89 million BBbar events recorded with the BABAR detector at the Y(4S) resonance. Events are selected by fully reconstructing the…

High Energy Physics - Experiment · Physics 2008-11-26 B. Aubert

The B_{s} --> \phi\psi decay is modeled through the inclusive b --> s\psi decay. Using the Vector Meson Dominance model, the amplitude for the chain process B_{s} --> \phi\psi --> \phi\gamma --> \gamma\gamma is estimated and it is found to…

High Energy Physics - Phenomenology · Physics 2011-07-19 G. Hiller , E. O. Iltan

An informal review is given of the status and direction of experiments on radiative B decays -- b -> s gamma and b -> d gamma. Branching fractions for exclusive and inclusive b -> s gamma decays, CP asymmetry limits, the photon energy…

High Energy Physics - Experiment · Physics 2007-05-23 Edward H. Thorndike

I analyzed the CP asymmetry of $B\to X_sl^+l^-$ based on model-independent analysis which includes twelve independent four Fermi operators. The CP asymmetry is suppressed in the Standard Model, however, if some new physics make it much…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. Fukae

By employing the QCD factorization approach, we calculate the new physics contributions to the branching radios of the two-body charmless $ B \to PP$ decays in the framework of the minimal supergravity (mSUGRA) model. Within the considered…

High Energy Physics - Phenomenology · Physics 2011-07-19 Zhenjun Xiao , Wenjuan Zou

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

I point out that $B \to X_q \l^+ \l^-$ decays $(q = s, d)$ are sensitive probes of possible violation of CKM unitarity. I compute the decay rates and asymmetries in a minimal extension of the Standard Model containing an additional…

High Energy Physics - Phenomenology · Physics 2022-03-02 L. T. Handoko

Taking seriously phenomenological indications for supersymmetry, we have made a detailed study of unified minimal SUSY, including effects at the few percent level in a consistent fashion. We report here a general analysis without choosing a…

High Energy Physics - Phenomenology · Physics 2009-09-15 G. L. Kane , Chris Kolda , Leszek Roszkowski , James D. Wells
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