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Assuming that supersymmetry exists well above the weak scale, we derive the full one-loop matching conditions between the SM and the supersymmetric theory, allowing for the possibility of an intermediate Split-SUSY scale. We also compute…

High Energy Physics - Phenomenology · Physics 2014-09-18 Emanuele Bagnaschi , Gian F. Giudice , Pietro Slavich , Alessandro Strumia

We present new global fits of the cMSSM, including LHC 1/fb integrated luminosity SUSY exclusion limits, recent LHC 5/fb constraints on the mass of the Higgs boson and XENON100 direct detection data. Our analysis fully takes into account…

High Energy Physics - Phenomenology · Physics 2015-06-03 C. Strege , G. Bertone , D. G. Cerdeno , M. Fornasa , R. Ruiz de Austri , R. Trotta

Non-universal boundary conditions in grand unified theories can lead to non-universal gaugino masses at the unification scale. In R-parity preserving theories the lightest supersymmetric particle is a natural candidate for the dark matter.…

High Energy Physics - Phenomenology · Physics 2009-09-29 Katri Huitu , Jari Laamanen , Sourov Roy

We propose two new benchmark scenarios for Higgs-boson searches in the Minimal Supersymmetric Standard Model (MSSM). These scenarios are specifically designed for the low $\tan\beta$ region. A light Higgs-boson mass prediction compatible…

High Energy Physics - Phenomenology · Physics 2019-03-28 Henning Bahl , Stefan Liebler , Tim Stefaniak

We consider the minimal supersymmetric extension of the Standard Model (MSSM) with varying amounts of non-universality in the soft supersymmetry-breaking contributions to the Higgs scalar masses. In addition to the constrained MSSM (CMSSM)…

High Energy Physics - Phenomenology · Physics 2008-11-26 John Ellis , Keith A. Olive , Pearl Sandick

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. I. Bityukov , N. V. Krasnikov

We explore the parameter space of the minimal supersymmetric extension of the Standard Model (MSSM), allowing the soft supersymmetry-breaking masses of the Higgs multiplets, m_{1,2}, to be non-universal (NUHM). Compared with the constrained…

High Energy Physics - Phenomenology · Physics 2009-09-29 J. Ellis , T. Falk , K. A. Olive , Y. Santoso

A huge swath of parameter space in the context of the Minimal Supersymmetric Standard Model (MSSM) has been ruled at after run I of the LHC. Various exclusion contours in the $m_{\tilde{g}}-\m_{\tilde{\chi}_{1}^{0}}$ plane were derived by…

High Energy Physics - Phenomenology · Physics 2016-01-27 Guillaume Chalons , Dipan Sengupta

We discuss the upper bound on the gluino mass in supersymmetric models with vector-like extra matters. In order to realize the observed Higgs mass of 125 GeV, the gluino mass is bounded from above in supersymmetric models. With the…

High Energy Physics - Phenomenology · Physics 2016-08-24 Takeo Moroi , Tsutomu T. Yanagida , Norimi Yokozaki

A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets and missing transverse momentum. The analysis is performed with 2.05 fb^-1 of integrated luminosity…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

We argue that in order to account for the muon anomalous magnetic moment $g-2$, dark matter and LHC data, non-universal gaugino masses $M_i$ at the high scale are required in the framework of the Minimal Supersymmetric Standard Model…

High Energy Physics - Phenomenology · Physics 2018-06-13 Alexander S. Belyaev , Steve F. King , Patrick B. Schaefers

We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with…

High Energy Physics - Phenomenology · Physics 2015-06-19 Ulrich Ellwanger , Cyril Hugonie

We propose and examine a new set of benchmark supersymmetric scenarios, some of which have non-universal Higgs scalar masses (NUHM) and others have gravitino dark matter (GDM). The scalar masses in these models are either considerably…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. De Roeck , J. Ellis , F. Gianotti , F. Moortgat , K. A. Olive , L. Pape

The extensions of the minimal supersymmetric model (MSSM), driving mainly from the need to solve the \mu problem, involve novel matter species and gauge groups. These extended MSSM models can be searched for at the LHC via the effects of…

High Energy Physics - Phenomenology · Physics 2009-07-24 Ahmed Ali , Durmus A. Demir , Mariana Frank , Ismail Turan

The excluded tan(beta) range and Higgs boson mass regions in the framework of the Minimal Supersymmetric extension of the Standard Model (MSSM) depend on several parameters. The Higgs boson masses, cross-sections and branching fractions…

High Energy Physics - Phenomenology · Physics 2009-10-31 Andre Sopczak

We discuss the implications of the excesses in LHC Higgs boson searches on the gauge mediated supersymmetric standard model, for the mass range 120-140\,GeV. We find that a relatively heavy lightest Higgs boson mass in this range can be…

High Energy Physics - Phenomenology · Physics 2011-08-18 Jason L. Evans , Masahiro Ibe , Tsutomu T. Yanagida

Phenomenological issues of no-scale structure of K\"{a}hler potential are re-examined, which arises in various approaches to supersymmetry breaking. When no-scale boundary conditions are given at the Grand Unified scale and universal…

High Energy Physics - Phenomenology · Physics 2011-01-27 Shinji Komine , Masahiro Yamaguchi

It is studied that `no-scale' model makes hierarchy between scalar top mass and Z boson mass naturally. The supersymmetry breaking parameters are constrained by flavor changing neutral currents in minimal supersymmetric standard model. One…

High Energy Physics - Phenomenology · Physics 2016-09-06 Yuichi Chikira , Yukihiro Mimura

In natural SUSY models higgsinos are always light because \mu^2 cannot be much larger than M_Z^2, while squarks and gluinos may be very heavy. Unless gluinos are discovered at LHC13, the commonly assumed unification of gaugino mass…

High Energy Physics - Phenomenology · Physics 2017-01-17 Howard Baer , Vernon Barger , Peisi Huang , Dan Mickelson , Maren Padeffke-Kirkland , Xerxes Tata

We discuss the phenomenology of charged Higgs bosons in the MSSM with minimal flavor violation. In addition to the constrained MSSM (CMSSM) with universal soft supersymmetry breaking mass parameters at the GUT scale, we explore…

High Energy Physics - Phenomenology · Physics 2009-02-18 D. Eriksson , F. Mahmoudi , O. Stål
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