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Related papers: Beyond the MSSM Higgs with d=6 effective operators

200 papers

We determine the radiative corrections to the masses of the gauginos and Higgsinos in the MSSM, including all sectors of the theory in a one-loop calculation in the on-mass-shell renormalization scheme. We find that a gluino which is…

High Energy Physics - Phenomenology · Physics 2009-10-28 Damien Pierce , Aris Papadopoulos

The region of low neutralino masses as low as (5-10) GeV has attracted attention recently due to the possibility of excess events above background in dark matter detectors. An analysis of spin independent neutralino-proton cross sections…

High Energy Physics - Phenomenology · Physics 2014-11-20 Daniel Feldman , Zuowei Liu , Pran Nath

We extend previous analyses of the supersymmetric loop correction to the charged Higgs couplings to include the coupling $H^{\pm}\chi^{\mp}\chi^0$. The analysis completes the previous analyses where similar corrections were computed for…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tarek Ibrahim , Pran Nath , Anastasios Psinas

The recent discovery of a 125 GeV Higgs-like resonance at LHC, coupled with the lack of evidence for weak scale supersymmetry (SUSY), have severely constrained SUSY models such as mSUGRA/CMSSM. As LHC probes deeper into SUSY model parameter…

High Energy Physics - Phenomenology · Physics 2015-06-11 Howard Baer , Vernon Barger , Peisi Huang , Dan Mickelson , Azar Mustafayev , Xerxes Tata

In this Letter we consider very light Higgs fields in BMSSM(Beyond MSSM). The spectrum below TeV scale is the same as the MSSM but the Higgs potential is modified and is well described in terms of effective dimension five and six operators.…

High Energy Physics - Phenomenology · Physics 2010-01-06 Kyu Jung Bae , Radovan Dermisek , Doyoun Kim , Hyung Do Kim , Ji-Hun Kim

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

The latest experimental results from the LHC and dark matter (DM) searches suggest that the parameter space allowed in supersymmetric theories is subject to strong reductions. These bounds are especially constraining for scenarios entailing…

High Energy Physics - Phenomenology · Physics 2017-05-04 M. Peiro , S. Robles

One of the main implications of the LHC discovery of a Higgs boson with a mass $M_h \approx 126$ GeV is that the scale of supersymmetry-breaking in the Minimal Supersymmetric Standard Model (MSSM) might be rather high, $M_S \gg M_Z$. In…

High Energy Physics - Phenomenology · Physics 2014-04-18 Abdelhak Djouadi , Jeremie Quevillon

We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). Assuming heavy scalar quarks we take into account all decay channels involving charginos,…

High Energy Physics - Phenomenology · Physics 2012-02-03 S. Heinemeyer , F. v. d. Pahlen , C. Schappacher

In the Minimal Supersymmetric Standard Model (MSSM) we calculate the corrections to neutral CP-even Higgs-boson production in the WW-fusion and Higgs-strahlung channel, e+e- -> \bar nu nu {h,H}, at a future Linear Collider, taking into…

High Energy Physics - Phenomenology · Physics 2010-04-05 T. Hahn , S. Heinemeyer , G. Weiglein

A multitude of searches have already been performed by the ATLAS and CMS collaborations at the LHC to probe the heavy Higgses of the Minimal Supersymmetric Standard Model (MSSM) through their decay to the Standard Model particles. In this…

High Energy Physics - Phenomenology · Physics 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

We study theoretical implications of direct dark matter searches in the minimal supersymmetric standard model (MSSM). We assume that no accidental cancellations occur in the spin-independent elastic neutralino-quark scattering cross…

High Energy Physics - Phenomenology · Physics 2015-05-28 Maxim Perelstein , Bibhushan Shakya

We explore the parameter space of a Constrained Next-to-Minimal Supersymmetric Standard Model with GUT scale boundary conditions (CNMSSM) and find regions where the relic density of the lightest neutralino is compatible with the WMAP…

High Energy Physics - Phenomenology · Physics 2014-11-18 C. Hugonie , G. Belanger , A. Pukhov

We investigate the possibilities of New Physics affecting the Standard Model (SM) Higgs sector. An effective Lagrangian with dimension-six operators is used to capture the effect of New Physics. We carry out a global Bayesian inference…

High Energy Physics - Phenomenology · Physics 2013-07-23 Beranger Dumont , Sylvain Fichet , Gero von Gersdorff

In the Minimal Supersymmetric Standard Model (MSSM) we present the corrections to the heavy neutral CP-even Higgs-boson production in the WW-fusion and Higgs-strahlung channel, e+e- -> \bar nu nu H, taking into account all O(\alpha)…

High Energy Physics - Phenomenology · Physics 2009-11-07 T. Hahn , S. Heinemeyer , G. Weiglein

In the context of the minimal SO(5) linear {\sigma}-model, a complete renormalizable Lagrangian -including gauge bosons and fermions- is considered, with the symmetry softly broken to SO(4). The scalar sector describes both the electroweak…

High Energy Physics - Phenomenology · Physics 2016-06-29 Ferruccio Feruglio , Belen Gavela , Kirill Kanshin , Pedro Accioly Nogueira Machado , Stefano Rigolin , Sara Saa

In the framework of a 2HDM effective lagrangian for the MSSM, we analyse important phenomenological aspects associated with quantum soft SUSY-breaking effects that modify the relation between the bottom mass and the bottom Yukawa coupling.…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Carena , D. Garcia , U. Nierste , C. E. M. Wagner

The constraints imposed on the Minimal Supersymmetric Standard Model (MSSM) parameter space by the Large Hadron Collider (LHC) Higgs mass limit and gluino mass lower bound are revisited. We also analyze the thermal relic abundance of…

High Energy Physics - Phenomenology · Physics 2016-01-12 W. Abdallah , S. Khalil

It is pointed out that mixing effects in the CP-even scalar sector of the NMSSM can give 6-8 GeV correction to the SM-like Higgs mass in moderate or large $\tan\beta$ regions with a small value of the singlet-higgs-higgs superfields…

High Energy Physics - Phenomenology · Physics 2013-06-14 Marcin Badziak , Marek Olechowski , Stefan Pokorski

We compare updated predictions for the elastic scattering of supersymmetric neutralino dark matter with the improved experimental upper limit recently published by CDMS II. We take into account the possibility that the \pi-nucleon \Sigma…

High Energy Physics - Phenomenology · Physics 2010-04-06 John Ellis , Keith A. Olive , Yudi Santoso , Vassilis C. Spanos