Results 51 to 60 of about 921 (207)

Oblique Corrections in the MSSM at One‐Loop—Part I: Scalars

open access: yesAdvances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013
This paper is devoted to reconsider the one‐loop oblique corrections arising from the scalar superpartners in the MSSM, that is, the squarks, the sleptons, and the scalars in Higgs sector. We explicitly present the complete one‐loop forms of self‐energy corrections to the gauge bosons of SM electroweak gauge groups, as well as their descendants the S ...
Yao Yu, Sibo Zheng, Elias C. Vagenas
wiley   +1 more source

Heavy Chiral Fermions and Dark Matter

open access: yesAdvances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013
Dark matter presents perhaps one of the most compelling direct indications of new physics beyond the standard model with three generations of fermions. In this paper, we survey several scenarios for dark matter in association with a fourth generation of chiral matter.
Johan Alwall, Jusak Tandean, Tao Han
wiley   +1 more source

A Comparative Study of Dark Matter in the MSSM and Its Singlet Extensions: A Mini Review

open access: yesAdvances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012
In this note we briefly review the recent studies of dark matter in the MSSM and its singlet extensions: the NMSSM, the nMSSM, and the general singlet extension. Under the new detection results of CDMS II, XENON, CoGeNT, and PAMELA, we find that (i) the latest detection results can exclude a large part of the parameter space which is allowed by current
Wenyu Wang, Ulrich Ellwanger
wiley   +1 more source

Explanation of electron and muon g − 2 anomalies in the MSSM

open access: yesJournal of High Energy Physics, 2019
The current experimental values of anomalous magnetic moments of muon and electron deviate from the Standard Model predictions by few standard deviations, which might be a hint of new physics.
Marcin Badziak, Kazuki Sakurai
doaj   +1 more source

A 125 GeV Higgs and Its Diphoton Signal in Different SUSY Models: A Mini Review

open access: yesAdvances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012
In this paper we briefly review our recent studies on a 125 GeV Higgs and its diphoton signal rate in different low‐energy supersymmetric models, namely, the minimal supersymmetric standard model (MSSM), the next‐to‐minimal supersymmetric standard model (NMSSM), the nearly minimal supersymmetric standard model (nMSSM), and the constrained MSSM.
Zhaoxia Heng, Stefano Moretti
wiley   +1 more source

Probing the sgeneration spectrum in chargino decays [PDF]

open access: yesPhysics Letters B, 1998
Some mechanisms of supersymmetry breaking result in splitting of the third generation sfermions from the other sfermions. We show that the three-body decay branching ratio of the lighter chargino gives a sensitive probe of the sfermion mass spectrum if the chargino has a large gaugino component.
Ken Ichi Hikasa, Takaaki Nagano
openaire   +3 more sources

Higgs Bosons Near 125 GeV in the NMSSM with Constraints at the GUT Scale

open access: yesAdvances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012
We study the NMSSM with universal Susy breaking terms (besides the Higgs sector) at the GUT scale. Within this constrained parameter space, it is not difficult to find a Higgs boson with a mass of about 125 GeV and an enhanced cross‐section in the diphoton channel.
Ulrich Ellwanger   +2 more
wiley   +1 more source

Supersymmetric interpretation of the muon g – 2 anomaly

open access: yesJournal of High Energy Physics, 2021
The Fermilab Muon g − 2 collaboration recently announced the first result of measurement of the muon anomalous magnetic moment (g − 2), which confirmed the previous result at the Brookhaven National Laboratory and thus the discrepancy with its Standard ...
Motoi Endo   +3 more
doaj   +1 more source

Closing the Window on Light Charged Higgs Bosons in the NMSSM

open access: yesAdvances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012
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 (mh±
Johan Rathsman   +2 more
wiley   +1 more source

Search for supersymmetry using Higgs boson to diphoton decays at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2019
A search for supersymmetry (SUSY) is presented where at least one Higgs boson is produced and decays to two photons in the decay chains of pair-produced SUSY particles.
The CMS collaboration   +2333 more
doaj   +1 more source

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