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We examine the prospects for the detection of Higgs mediated lepton flavor violation at LHC and at a photon collider in the minimal supersymmetric standard model with large lepton flavor violating mass insertions in the $\mu-\tau$ sector…

High Energy Physics - Phenomenology · Physics 2010-12-01 M. Cannoni , O. Panella

The ATLAS and CMS experiments at the LHC have reported the observation of a possible excess of events corresponding to a new particle $h$ with mass $\sim 125$ GeV that might be the long-sought Higgs boson, or something else. Decyphering the…

High Energy Physics - Phenomenology · Physics 2015-06-04 Gianluca Blankenburg , John Ellis , Gino Isidori

In the contest of supersymmetric extensions of the Standard Model, we consider a spectrum in which the lightest Higgs boson has mass between 200 and 300 GeV and the first two generations of squarks have masses above 20 TeV, considering the…

High Energy Physics - Phenomenology · Physics 2011-11-10 Enrico Bertuzzo

The MSSM with large tan(beta) and heavy squarks is a theoretically well motivated and phenomenologically interesting extension of the SM. This scenario naturally accommodates the (g-2)_\mu anomaly and the upper bound on the Higgs boson…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gino Isidori , Federico Mescia , Paride Paradisi , David Temes

We investigate couplings of squarks to gauge and Higgs-bosons within the framework of non-minimal flavour violation in the Minimal Supersymmetric Standard Model. Introducing non-diagonal elements in the mass matrices of squarks, we first…

High Energy Physics - Phenomenology · Physics 2014-11-21 Matthias Bruhnke , Björn Herrmann , Werner Porod

We present a class of supersymmetric models which address the flavor puzzle and have an inverted hierarchy of sfermions. Their construction involves quiver-like models with link fields in generic representations. The magnitude of…

High Energy Physics - Phenomenology · Physics 2012-03-02 Roberto Auzzi , Amit Giveon , Sven Bjarke Gudnason

We compute the lepton flavour violating couplings of Higgs bosons in the Minimal Supersymmetric Standard Model, and show that they can induce the decays (h,H,A) --> mu tau at non-negligible rates, for large tan(beta) and sizeable smuon-stau…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andrea Brignole , Anna Rossi

A composite Higgs boson of 125 GeV mass, only mildly fine-tuned, requires top partners with a semi-perturbative coupling and a mass not greater than about a TeV. We analyze the strong constraints on such picture arising from flavour and…

High Energy Physics - Phenomenology · Physics 2015-06-12 Riccardo Barbieri , Dario Buttazzo , Filippo Sala , David M. Straub , Andrea Tesi

We examine the constraints coming from incorporating the full Standard Model gauge symmetry into the effective field theory description of flavor processes, using semileptonic decays as paradigmatic examples. Depending on the dynamics…

High Energy Physics - Phenomenology · Physics 2015-09-23 Oscar Catà , Martin Jung

In this work, we explore the flavour changing decays $H_i \to b s$ in a general supersymmetric scenario. In these models, the flavour changing decays arise at loop-level but, originating from a dimension-four operator, do not decouple and…

High Energy Physics - Phenomenology · Physics 2015-11-18 G. Barenboim , C. Bosch , J. S. Lee , M. L. López-Ibáñez , O. Vives

A short summary of constraints on the parameter space of supersymmetric models is given. Experimental limits from high energy colliders, electroweak precision data, flavor and Higgs physics, and cosmology are considered. The main focus is…

High Energy Physics - Phenomenology · Physics 2008-08-17 A. Freitas

We report on the status of supersymmetric seesaw models in the light of recent experimental results on $\mu \to e + \gamma$, $\theta_{13}$ and the light Higgs mass at the LHC. SO(10)-like relations are assumed for neutrino Dirac Yukawa…

High Energy Physics - Phenomenology · Physics 2012-11-16 L. Calibbi , D. Chowdhury , A. Masiero , K. M. Patel , S. K. Vempati

We consider the flavor-changing decays of the Higgs boson in a grand unified theory framework which is based on the SU(5) gauge group and implements the principle of minimal flavor violation. This allows us to explore the possibility of…

High Energy Physics - Phenomenology · Physics 2016-12-07 Seungwon Baek , Jusak Tandean

Run 2 of the LHC offers some beautiful prospects for new physics, including flavour physics as well as more detailed studies of the Higgs boson and searches for new physics beyond the Standard Model (BSM). One of the possibilities for BSM…

High Energy Physics - Phenomenology · Physics 2014-12-09 John Ellis

We consider the flavour problem in a supersymmetric Grand Unified theory with gauged SU(6) group, where the Higgs doublets are understood as pseudo-Goldstone bosons of a larger $\SU(6)\otimes\SU(6)$ global symmetry of the Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-09 R. Barbieri , Z. Berezhiani , G. Dvali , L. Hall , A. Strumia

We briefly review the status of motivated beyond-the-MSSM phenomenology in the light of the LHC searches to date. In particular, we discuss the conceptual consequences of the exclusion bounds, of the hint for a Higgs boson at about 125 GeV,…

High Energy Physics - Phenomenology · Physics 2012-05-30 Paolo Lodone

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. In particular, and for the case of a ``T1-2-A'' variant, we carry out a full computation of the…

High Energy Physics - Phenomenology · Physics 2025-07-01 A. Darricau , H. Lee , J. Orloff , A. M. Teixeira

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. For the case of a ``T1-2-A'' variant, we carry out a full computation of the next-to-leading…

High Energy Physics - Phenomenology · Physics 2025-12-04 A. Darricau , H. Lee , J. Orloff , A. M. Teixeira

We present the general behavior of the scalar sector in a Three Higgs Doublet Model (3HDM) with a $\mathbb{Z}_5$ flavor symmetry. There are regions of the parameters space where it is possible to get a SM-like Higgs boson with the other…

High Energy Physics - Phenomenology · Physics 2014-05-01 A. Aranda , J. E. Barradas-Guevara , A. Cordero-Cid , F. de Anda , A. Delgado , O. Felix-Beltran , J. Hernandez-Sanchez

We analyze the Next-to-minimal supersymmetric standard model with Grand unification boundary conditions under current theoretical and experimental constraints. We compute the mass spectrum of the model and focus on the three lightest…

High Energy Physics - Phenomenology · Physics 2021-01-11 Marwa Telba , Maien Binjonaid