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Related papers: Low $\tan{\beta}$ in the extended Minimal Gauge Me…

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We consider the Minimal Gauge Mediated Model (MGMM) with either fundamental or antisymmetric messenger multiplets and study consequences of messenger-matter mixing. We find that in these models, unlike MGMM without mixing, wide range of…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. L. Dubovsky , D. S. Gorbunov

We consider the Minimal Gauge Mediated Model (MGMM) with messenger-matter mixing and find that existing experimental limits on $\mu \to e\gamma$ decay and $\mu - e$ - conversion place significant constraints on relevant coupling constants.…

High Energy Physics - Phenomenology · Physics 2009-10-30 S. L. Dubovsky , D. S. Gorbunov

We study various modifications to the minimal models of gauge mediated supersymmetry breaking. We argue that, under reasonable assumptions, the structure of the messenger sector is rather restricted. We investigate the effects of possible…

High Energy Physics - Phenomenology · Physics 2014-11-17 Michael Dine , Yosef Nir , Yuri Shirman

We revisit phenomenology of the minimal gauge-mediated model. This model is motivated from the SUSY CP and flavor problems. A specific feature of this model is that \tan\beta is naturally large, since the B term in the Higgs potential is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Junji Hisano , Yasuhiro Shimizu

In the context of anomaly-mediated supersymmetry breaking, it is natural for vectorlike fields and singlets to have supersymmetry breaking masses of order 10 TeV, and therefore act as messengers of supersymmetry breaking. We show that this…

High Energy Physics - Phenomenology · Physics 2010-10-27 Ken Hsieh , Markus A. Luty

We analyze a minimal flavored gauge mediation model in which the electroweak Higgs and messenger doublets are embedded in multiplets of a discrete non-Abelian symmetry. In this scenario, the minimal Higgs-messenger sector that is consistent…

High Energy Physics - Phenomenology · Physics 2019-07-31 Lisa L. Everett , Todd S. Garon , Ariel B. Rock

The messengers of Gauge-Mediation Models can couple to standard-model matter fields through renormalizable superpotential couplings. These matter-messenger couplings generate generation-dependent sfermion masses and are therefore usually…

High Energy Physics - Phenomenology · Physics 2015-05-27 Yael Shadmi , Peter Z. Szabo

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

Supersymmetric standard model with softly broken lepton symmetry provides a suitable framework to accommodate the solar and atmospheric neutrino anomalies. This model contains a natural explanation for large mixing and hierarchal masses…

High Energy Physics - Phenomenology · Physics 2009-10-31 Anjan S. Joshipura , Sudhir K. Vempati

Hermitian squared mass matrices of charged leptons and light neutrinos in the flavor basis are studied under general additive lowest order perturbations away from the tribimaximal (TBM) limit in which a weak basis with mass diagonal charged…

High Energy Physics - Phenomenology · Physics 2015-11-25 Biswajoy Brahmachari , Probir Roy

The gauge interactions of any supersymmetric extension of the standard model involve new flavor mixing matrices. The assumptions involved in the construction of minimal supersymmetric models, both $SU(3) \times SU(2) \times U(1)$ and grand…

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

The branching ratio for the mu-->e+gamma decay in the framework of the minimal flavour violation in the MSSM is calculated for various regions of the MSSM parameter space. The lepton flavour violation goes through the PMNS mixing matrix.…

High Energy Physics - Phenomenology · Physics 2011-02-09 M. Davidkov , D. I. Kazakov

General lowest order perturbations to hermitian squared mass matrices of leptons are considered away from the tribimaximal (TBM) limit in which a weak flavor basis with mass diagonal charged leptons is chosen. The three measurable TBM…

High Energy Physics - Phenomenology · Physics 2015-06-22 Biswajoy Brahmachari , Probir Roy

We show that the messenger-matter couplings of Flavored Gauge Mediation Models can generate substantial stop mixing, leading to Higgs masses around 126 GeV with colored superpartners below 2 TeV and even a TeV. These results are largely…

High Energy Physics - Phenomenology · Physics 2015-06-11 Mohammad Abdullah , Iftah Galon , Yael Shadmi , Yuri Shirman

In recent works, we have proposed a possible dark matter in composite messenger gauge mediation models. In this paper, we discuss the details of a composite messenger model taking a possible supersymmetry breaking scenario and show that the…

High Energy Physics - Phenomenology · Physics 2010-05-12 Koichi Hamaguchi , Eita Nakamura , Satoshi Shirai , Tsutomu T. Yanagida

We study a minimal modification of Gauge Mediation in which the messenger sector couples directly to the MSSM matter fields. These couplings are controlled by the same dynamics that explain the flavor hierarchies, and therefore are…

High Energy Physics - Phenomenology · Physics 2015-06-15 Lorenzo Calibbi , Paride Paradisi , Robert Ziegler

We calculate the low-lying spectrum of new particles expected in a minimal model wherein supersymmetry breaking at < 100 TeV is indirectly transmitted to the Standard Model. We calculate the couplings of these particles relevant to their…

High Energy Physics - Phenomenology · Physics 2009-10-28 K. S. Babu , Chris Kolda , Frank Wilczek

Evidences of a discrete symmetry behind the pattern of lepton mixing are analyzed. The program of "symmetry building" is outlined. Generic features and problems of realization of this program in consistent gauge models are formulated. The…

High Energy Physics - Phenomenology · Physics 2015-05-27 Alexei Yu Smirnov

The K-Mean and EM algorithms are popular in clustering and mixture modeling, due to their simplicity and ease of implementation. However, they have several significant limitations. Both coverage to a local optimum of their respective…

Machine Learning · Computer Science 2013-01-18 Ian Davidson

Recent signs of a Standard Model-like Higgs at 125 GeV point towards large A-terms in the MSSM. This presents special challenges for gauge mediation, which by itself predicts vanishing A-terms at the messenger scale. In this paper, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Nathaniel Craig , Simon Knapen , David Shih , Yue Zhao
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