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相关论文: SUSY into Darkness: Heavy Scalars in the CMSSM

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We place perturbative unitarity constraints on both the dimensionful and dimensionless parameters in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) Higgs Sector. These constraints, plus the requirement that the singlino and/or…

高能物理 - 唯象学 · 物理学 2014-10-09 Kassahun Betre , Sonia El Hedri , Devin G. E. Walker

We examine the possibility of a light (below 46 GeV) neutralino dark matter (DM) candidate within the 19-parameter phenomenological Minimal Supersymmetric Standard Model (pMSSM) in the light of various recent experimental results,…

高能物理 - 唯象学 · 物理学 2014-10-13 Celine Boehm , P. S. Bhupal Dev , Anupam Mazumdar , Ernestas Pukartas

Constraints from searches for squarks and gluinos at the LHC at sqrt{s}=8 TeV are applied to the parameter space of the NMSSM with universal squark/slepton and gaugino masses at the GUT scale, but allowing for non-universal soft Higgs mass…

高能物理 - 唯象学 · 物理学 2015-06-12 Debottam Das , Ulrich Ellwanger , Ana M. Teixeira

The ATLAS and CMS collaborations have recently reported tantalizing hints of the existence of a 125 GeV Higgs--like particle, whose couplings appear to match well the Standard Model (SM) expectations. In this work, we study implications of…

高能物理 - 唯象学 · 物理学 2015-06-05 Herbi K. Dreiner , Jong Soo Kim , Oleg Lebedev

Information theory has proven to be a worthwhile tool for investigating the implications of the Higgs sector in the Next-to-minimal supersymmetric Standard Model (NMSSM) using Higgs information at the Large Hadron Collider assessed through…

高能物理 - 唯象学 · 物理学 2023-06-05 Surabhi Gupta , Sudhir Kumar Gupta

{We present an updated assessment of the reach of the CERN LHC pp collider for supersymmetric matter in the context of the minimal supergravity (mSUGRA) model. In addition to previously examined channels, we also include signals with an…

高能物理 - 唯象学 · 物理学 2011-03-23 Howard Baer , Csaba Balazs , Alexander Belyaev , Tadas Krupovnickas , Xerxes Tata

A brief review is given of recent developments related to the Higgs signal and its implications for supersymmetry in the supergravity grand unification framework. The Higgs data indicates that the allowed parameter space largely lies on…

高能物理 - 唯象学 · 物理学 2012-08-02 Pran Nath

We examine supergravity models with grand unification at M_G possessing R parity invariance. Current data has begun to significantly constrain the parameter space. Thus for mSUGRA, accelerator data places a lower bound on m_{1/2} of m_{1/2}…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Arnowitt , B. Dutta

Within the minimal supergravity model (mSUGRA) framework, the expectation for the relic density of neutralinos exceeds the WMAP determination unless neutralinos a) have a significant higgsino component, b) have a mass close to half that of…

高能物理 - 唯象学 · 物理学 2009-11-10 Howard Baer , Azar Mustafayev , Stefano Profumo , Alexander Belyaev , Xerxes Tata

Indirect information about the possible scale of supersymmetry (SUSY) breaking is provided by B-physics observables (BPO) as well as electroweak precision observables (EWPO). We combine the constraints imposed by recent measurements of the…

高能物理 - 唯象学 · 物理学 2009-01-06 J. Ellis , S. Heinemeyer , K. A. Olive , A. M. Weber , G. Weiglein

In supersymmetric models where the superpotential mu term is generated with mu<< m_{soft} (e.g. from radiative Peccei-Quinn symmetry breaking or compactified string models with sequestration and stabilized moduli), and where the string…

高能物理 - 唯象学 · 物理学 2016-06-22 Howard Baer , Vernon Barger , Michael Savoy , Hasan Serce

We present the first analysis of the p19MSSM with neutralino dark matter, in light of 13 TeV LHC data with an integrated luminosity of ~14/fb. We recast twelve experimental analyses performed by the ATLAS collaboration and derive exclusion…

高能物理 - 唯象学 · 物理学 2017-01-10 Kamila Kowalska

In the present work we search for renormalization group invariant relations among the various massless and massive parameters of the Minimal Supersymmetric Standard Model. We find that indeed several of the previously free parameters of the…

高能物理 - 唯象学 · 物理学 2018-09-26 S. Heinemeyer , M. Mondragon , N. Tracas , G. Zoupanos

High-scale supersymmetry (SUSY) with a split spectrum has become increasingly interesting given the current experimental results. A SUSY scale above the weak scale could be naturally associated with a heavy unstable gravitino, whose decays…

高能物理 - 唯象学 · 物理学 2015-06-19 JiJi Fan , Bithika Jain , Ogan Ozsoy

In the Minimal Supersymmetric Standard Model (MSSM) searches for the heaviest CP-even and CP-odd Higgs $H$, $A$ to tau-lepton pairs severely constrain the parameter region for large values of $\tan\beta$ and light Higgs bosons $H$, $A$. We…

高能物理 - 唯象学 · 物理学 2017-09-05 Anibal D. Medina , Michael A. Schmidt

In SUSY, a light dark matter is usually accompanied by light scalars to achieve the correct relic density, which opens new decay channels of the SM like Higgs boson. Under current experimental constraints including the latest LHC Higgs data…

高能物理 - 唯象学 · 物理学 2015-06-17 Junjie Cao , Chengcheng Han , Lei Wu , Peiwen Wu , Jin Min Yang

We study light, thermal neutralino dark matter in the sub-GeV to 65 GeV mass range in the Minimal Supersymmetric extension of the Standard Model (MSSM). We consider realizations of the limit of alignment without decoupling in the Higgs…

高能物理 - 唯象学 · 物理学 2016-12-20 Stefano Profumo , Tim Stefaniak

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…

高能物理 - 唯象学 · 物理学 2014-04-18 Abdelhak Djouadi , Jeremie Quevillon

We analyse the naturalness of the Minimal Supersymmetric Standard Model (MSSM) in the light of recent LHC results from the ATLAS and CMS experiments. We study non-universal boundary conditions for the scalar and the gaugino sector, with…

高能物理 - 唯象学 · 物理学 2013-02-07 Stefan Antusch , Lorenzo Calibbi , Vinzenz Maurer , Maurizio Monaco , Martin Spinrath

We study the radiative electroweak symmetry breaking and the relic abundance of neutralino dark matter in the supersymmetric type I seesaw model. In this model, there exist threshold corrections to Higgs bilinear terms coming from heavy…

高能物理 - 唯象学 · 物理学 2010-01-22 Sin Kyu Kang , Akina Kato , Takuya Morozumi , Norimi Yokozaki