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We study the di-photon rate in Higgs decays within singlet extensions of the supersymmetric standard model. In particular we point out that light charginos as well as a light charged Higgs can significantly contribute to the corresponding…

高能物理 - 唯象学 · 物理学 2012-11-02 Kai Schmidt-Hoberg , Florian Staub

The hMSSM is a special parameterization of the minimal supersymmetric extension of the Standard Model (MSSM) in which the mass of the lightest Higgs boson is automatically set to the LHC measured value, $M_h\!\!=\!\! 125$\,GeV, by adjusting…

高能物理 - 唯象学 · 物理学 2023-05-31 Giorgio Arcadi , Abdelhak Djouadi , Hong-Jian He , Jean-Loic Kneur , Rui-Qing Xiao

In this study, we focus on the bosonic decays of light charged Higgs boson (i.e., with $M_{H^\pm}<m_t$) in the 2-Higgs Doublet Model (2HDM) Type-I. To study the signal of such a charged Higgs state at the Large Hadron Collider (LHC), in a…

高能物理 - 唯象学 · 物理学 2021-01-04 Abdesslam Arhrib , Rachid Benbrik , Hicham Harouiz , Stefano Moretti , Yan Wang , Qi-Shu Yan

We calculate Higgs decay rates into {\gamma}{\gamma} and Z{\gamma} in the Minimal Supersymmetric Standard Model (MSSM) and (B-L) Supersymmetric Standard Model (BLSSM) by allowing for contributions from light staus and charginos. We show…

高能物理 - 唯象学 · 物理学 2015-11-11 A. Hammad , S. Khalil , S. Moretti

A rather high Higgs mass, m_h = 126 GeV, suggests that at least a part of the supersymmetric spectrum of the MSSM may live beyond O(1TeV) and hence inaccessible to the LHC. However, there are theoretical and phenomenological reasons…

高能物理 - 唯象学 · 物理学 2015-06-15 J. Alberto Casas , Jesus M. Moreno , Krzysztof Rolbiecki , Bryan Zaldivar

We explore the detection possibility of light pseudoscalar Higgs boson in the next-to-minimal supersymmetric Standard Model(NMSSM) at the LHC with the center of mass energy, $\sqrt{S}=13$ TeV. We focus on the parameter space which provides…

高能物理 - 唯象学 · 物理学 2017-03-08 Monoranjan Guchait , Jacky Kumar

We propose an experimental test of a scenario in the Next-to-Minimal Supersymmetric Standard Model in which both the lightest scalar and the lightest pseudoscalar Higgs bosons have masses around 125 GeV. The pseudoscalar can contribute…

高能物理 - 唯象学 · 物理学 2013-11-04 Shoaib Munir , Leszek Roszkowski , Sebastian Trojanowski

We show how the well studied $\gamma\gamma$ inclusive Higgs signal can be used at the Large Hadron Collider to test Gauge Mediated Supersymmetry Breaking scenarios in which a rather heavy Higgs boson decays into two light neutralinos, the…

高能物理 - 唯象学 · 物理学 2008-11-26 J. L. Diaz-Cruz , D. K. Ghosh , S. Moretti

We perform for the Large Hadron Collider (LHC) a detailed study of charged Higgs boson production via the top-bottom quark associated mode followed by decays into a chargino and a neutralino, with masses and couplings as given by the…

高能物理 - 唯象学 · 物理学 2011-07-19 M. Bisset , F. Moortgat , S. Moretti

We study the associated production of a very light pseudoscalar Higgs boson with a pair of charginos. The novel signature involves a pair of charged leptons from chargino decays and a pair of photons from the pseudoscalar Higgs boson decay,…

高能物理 - 唯象学 · 物理学 2008-11-26 Abdesslam Arhrib , Kingman Cheung , Tie-Jiun Hou , Kok-Wee Song

We discuss the associated production of a light Higgs boson and a light chargino pair in the process e+e- -> h chi+ chi- in the Minimal Supersymmetric Standard Model (MSSM) at linear colliders (LC) with \sqrt s=500 GeV. This process gives…

高能物理 - 唯象学 · 物理学 2016-09-06 Giancarlo Ferrera , Barbara Mele

The Minimal Supersymmetric Standard Model (MSSM) with explicit CP violation is studied with the help of the di-photon decay channel of the lightest neutral Higgs boson. Effects of CP violation, entering via the scalar/pseudo-scalar mixing…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Hesselbach , S. Moretti , S. Munir , P. Poulose

The di-photon decay channel of the lightest Higgs boson is considerd as a probe to explore CP violation in the Minimal Supersymmetric Standard Model (MSSM). The scalar/pseudo-scalar mixing is considered along with CP violation entering…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Hesselbach , S. Moretti , S. Munir , P. Poulose

An interesting feature of the next-to-minimal supersymmetric standard model (NMSSM) is that one or more Higgs bosons may be comparably light (M_{H_i}<M_Z) without being in conflict with current experimental bounds. Due to a large singlet…

高能物理 - 唯象学 · 物理学 2012-01-26 Oscar Stål , Georg Weiglein

The long awaited discovery of a new light scalar at the LHC opens up a new era of studies of the Higgs sector in the SM and its extensions. In this paper we discuss the consequences of the observation of a light Higgs boson with the mass…

高能物理 - 唯象学 · 物理学 2012-10-02 Alexandre Arbey , Marco Battaglia , Abdelhak Djouadi , Farvah Mahmoudi

Run I of the LHC has not revealed any sign of new physics beyond the Standard Model (BSM). However, the discovery of an SM-like Higgs boson with mass around 125 GeV opens up new possibilities for probing various BSM scenarios with enlarged…

高能物理 - 唯象学 · 物理学 2014-07-03 Beranger Dumont

Almost all extensions of the Standard Model predict the existence of charged Higgs bosons. This talk focuses on the minimal supersymmetric extension of the Standard Model (MSSM), which is relatively predictive. The outlook for detecting…

高能物理 - 唯象学 · 物理学 2011-01-27 John Ellis

In the Minimal Supersymmetric Standard Model (MSSM), we study the light Higgs-boson radiation off a light-chargino pair in the process e+e- -> h chi^+ chi^- at linear colliders with \sqs=500 GeV. We analyze cross sections in the regions of…

高能物理 - 唯象学 · 物理学 2009-01-07 Giancarlo Ferrera , Barbara Mele

Physical Higgs particles in the Minimal Supersymmetric Standard Model (MSSM) with explicit CP violation are CP mixed states. The decay of these Higgs particles can be analysed to study the CP properties of the MSSM. In the present work we…

高能物理 - 唯象学 · 物理学 2007-12-09 S. Hesselbach , S. Moretti , S. Munir , P. Poulose

In the Next-to-Minimal SuperSymmetric Model (NMSSM) the lightest CP-odd Higgs bosons (a1) can be very light. As a consequence, in addition to the standard charged Higgs boson (h+) decays considered in the MSSM for a light charged Higgs…

高能物理 - 唯象学 · 物理学 2012-08-20 Johan Rathsman , Thomas Rössler
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