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Currently available experimental data from electroweak precision observables (EWPO), B-physics observables (BPO) and cosmological data can be combined to extract the preferred value of SUSY mass scales. We review recent results on the…

High Energy Physics - Phenomenology · Physics 2009-02-02 S. Heinemeyer

The searches for heavy Higgs bosons and supersymmetric (SUSY) particles at the LHC have left the minimal supersymmetric standard model (MSSM) with an unusual spectrum of SUSY particles, namely, all squarks are beyond a few TeV while the…

High Energy Physics - Phenomenology · Physics 2015-05-20 Kingman Cheung , Ran Huo , Jae Sik Lee , Yue-Lin Sming Tsai

We present a generalization of the Next-to-Minimal Supersymmetric Standard Model (NMSSM), with an explicit mu-term and a supersymmetric mass for the singlet superfield, as a route to alleviating the little hierarchy problem of the Minimal…

High Energy Physics - Phenomenology · Physics 2014-11-21 Antonio Delgado , Christopher Kolda , J. Pocahontas Olson , Alejandro de la Puente

In the context of minimal supersymmetric standard model (MSSM), we discuss the possibility of the lightest Higgs boson with mass $M_h = 98 $ GeV to be consistent with the $2.3\sigma$ excess observed at the LEP in the decay mode $e^+e^- \to…

High Energy Physics - Phenomenology · Physics 2016-04-13 Biplob Bhattacherjee , Manimala Chakraborti , Amit Chakraborty , Utpal Chattopadhyay , Dilip Kumar Ghosh

We determine the allowed parameter space and the particle spectra of the minimal SUSY standard model (MSSM) and nonminimal SUSY standard model (NMSSM) imposing correct electroweak gauge-symmetry breaking and recent experimental constraints.…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. Stephan

The problem of the lightest Higgs boson mass in the next-to-minimal supersymmetric standard model (NMSSM) is investigated. Assuming the validity of the perturbation theory up to unification scales and using the recent experimental results…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. K. Yeghiyan

We address the possible scenario that the Large Hadron Collider (LHC) discovers only a Higgs boson after 10 fb^{-1} of operation, and attempt to identify this Higgs boson as that of the Standard Model (SM), the minimal universal extra…

High Energy Physics - Phenomenology · Physics 2008-11-07 Ken Hsieh , C. -P. Yuan

The Next to Minimal Supersymmetric Standard Model (NMSSM) with a Higgs-singlet coupling {\lambda} close to unity, moderate tan {\beta} and stop masses below 1 TeV minimizes the fine tuning of the electroweak scale, making possible that the…

High Energy Physics - Phenomenology · Physics 2013-06-25 Riccardo Barbieri , Dario Buttazzo , Kristjan Kannike , Filippo Sala , Andrea Tesi

In grand unified theories (GUT), non-universal boundary conditions for the gaugino masses may arise at the unification scale, and affect the observability of the neutral MSSM Higgs bosons (h/H/A) at the LHC. The implications of such…

High Energy Physics - Phenomenology · Physics 2008-12-18 Katri Huitu , Ritva Kinnunen , Jari Laamanen , Sami Lehti , Sourov Roy , Tapio Salminen

We perform global fits to the most recent data (after summer 2014) on Higgs boson signal strengths in the framework of the minimal supersymmetric standard model (MSSM). We further impose the existing limits on the masses of charginos,…

High Energy Physics - Phenomenology · Physics 2015-11-11 Kingman Cheung , Jae Sik Lee , Po-Yan Tseng

We examine the extent to which it is possible to realize the NMSSM "ideal Higgs" models espoused in several papers by Gunion et al in the context of partially universal GUT scale boundary conditions. To this end we use the powerful…

High Energy Physics - Phenomenology · Physics 2013-05-29 John F. Gunion , Daniel E. López-Fogliani , Leszek Roszkowski , Roberto Ruiz de Austri , Tom A. Varley

The discovery of the Higgs boson at the Large Hadron Collider (LHC) has a great impact on the minimal supersymmetric extension of the Standard Model (MSSM). In the context of the constrained MSSM (CMSSM) and its extension with non-universal…

High Energy Physics - Phenomenology · Physics 2014-07-23 Nobuchika Okada , Shabbar Raza , Qaisar Shafi

We show that in the Minimal Supersymmetric Standard Model, the possibility for the lightest CP-even Higgs boson to be lighter than $Z$ boson (as low as about 60 GeV) is, contrary to the usual belief, not yet excluded by LEP2 data or any…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexander Belyaev , Qing-Hong Cao , Daisuke Nomura , Kazuhiro Tobe , C. -P. Yuan

We present the first global analysis of the Constrained NMSSM that investigates the impact of the recent discovery of a 126 GeV Higgs-like boson, of the observation of a signal for BR(B_s->\mu^+\mu^-), and of constraints on supersymmetry…

High Energy Physics - Phenomenology · Physics 2013-06-25 Kamila Kowalska , Shoaib Munir , Leszek Roszkowski , Enrico Maria Sessolo , Sebastian Trojanowski , Yue-Lin Sming Tsai

We study the collider phenomenology of the extended Higgs sector of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The region of NMSSM parameter space favored by a 125\,GeV SM-like Higgs and naturalness generically features a…

High Energy Physics - Phenomenology · Physics 2017-07-05 Sebastian Baum , Katherine Freese , Nausheen R. Shah , Bibhushan Shakya

We investigate the constraints to the light neutralino dark matter scenario in the minimal supersymmetric standard model from available experimental observations such as decays of B and K meson, relic dark matter abundance, and the search…

High Energy Physics - Phenomenology · Physics 2015-03-19 Lorenzo Calibbi , Toshihiko Ota , Yasutaka Takanishi

Searches for Beyond the Standard Model Higgs processes in the context of Minimal Supersymmetric Standard Model and Next to MSSM are presented. The results are based on the first LHC run of pp collision data recorded by the ATLAS and CMS…

High Energy Physics - Experiment · Physics 2016-03-01 M. P. Casado

In this talk we briefly review the current CDMS/XENON constraints on the neutralino dark matter in three popular supersymmetric models: the minimal (MSSM), the next-to-minimal (NMSSM) and the nearly minimal (nMSSM). The constraints from the…

High Energy Physics - Phenomenology · Physics 2011-08-05 Jin Min Yang

LHC searches for non-standard Higgs bosons decaying into tau lepton pairs constitute a sensitive experimental probe for physics beyond the Standard Model (BSM), such as Supersymmetry (SUSY). Recently, the limits obtained from these searches…

High Energy Physics - Phenomenology · Physics 2015-09-30 Philip Bechtle , Sven Heinemeyer , Oscar Stal , Tim Stefaniak , Georg Weiglein

A Higgs-like particle with a mass of about 125.5 GeV has been discovered at the LHC. Within the current experimental uncertainties, this new state is compatible with both the predictions for the Standard Model (SM) Higgs boson and with the…

High Energy Physics - Phenomenology · Physics 2013-10-02 M. Carena , S. Heinemeyer , O. Stål , C. E. M. Wagner , G. Weiglein