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相关论文: LHC bounds on MUED after Run 2

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We investigate the impact of recent limits from LHC searches for supersymmetry and from direct and indirect searches for dark matter on global Bayesian inferences of the parameter space of the Constrained Minimal Supersymmetric Standard…

高能物理 - 唯象学 · 物理学 2013-05-30 Leszek Roszkowski , Enrico Maria Sessolo , Yue-Lin Sming Tsai

This paper examines unexplored correlations in the parameter spaces probed by recent ATLAS analyses for gluinos and squarks, addressing various shortcomings in the literature. Six 13 TeV ATLAS analyses based on 3.2 fb$^{-1}$ of integrated…

高能物理 - 唯象学 · 物理学 2017-04-07 Alan Barr , Jesse Liu

We discuss the prospects for charged Higgs boson searches at the LHC, within the two-Higgs-doublet models (2HDM). The 2HDM is generally less constrained than the corresponding sector of the MSSM, but there are still severe theoretical and…

高能物理 - 唯象学 · 物理学 2017-09-13 M Krawczyk , S Moretti , P Osland , GM Pruna , R Santos

In this paper we examine the constraints dedicated LHC multi lepton searches can place on $Z'$ bosons coming from gauged muon number minus tau number, $L_{\mu}-L_{\tau}$. As the $L_{\mu}-L_{\tau}$ gauge boson does not couple to proton…

高能物理 - 唯象学 · 物理学 2016-02-03 Fatemeh Elahi , Adam Martin

A significant lower limit on the mass of the lightest neutralino \chi can be obtained by combining the results from sparticle searches at LEP at centre-of-mass energies up to 172 GeV with cosmological considerations, if it is assumed that…

高能物理 - 唯象学 · 物理学 2009-09-11 John Ellis , Toby Falk , Keith A. Olive , Michael Schmitt

The most recent results on searches in lepton plus jet final states motivated by different models beyond the standard model are presented, using pp collision data collected by the ATLAS and CMS detectors during Run I and Run II at the CERN…

高能物理 - 实验 · 物理学 2017-09-06 Francesco Romeo

We propose an analysis of LEP constraints on radiative neutralino decays into a light gravitino, based on the plane of the Higgs mixing parameter mu and the SU(2) gaugino mass M_2. The preliminary LEP 2W constraints in the (mu, M_2) plane…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Ellis , J. Lopez , D. Nanopoulos

We perform a study of the impact of the recently released limits on BR(Bs -> mu+ mu-) by LHCb and CMS on several SUSY models. We show that the obtained constraints can be superior to those which are derived from direct searches for SUSY…

高能物理 - 唯象学 · 物理学 2012-01-13 A. G. Akeroyd , F. Mahmoudi , D. Martinez Santos

Stringent limits on the interactions between dark matter (DM) and the standard model can be set by studying how initial-state or final-state particles recoil against missing transverse energy (MET). In this work, we improve, extend and…

高能物理 - 唯象学 · 物理学 2015-08-21 Ulrich Haisch , Emanuele Re

We show that the LEP lower bound on the chargino mass, in conjunction with the well motivated theoretical requirement of radiative electroweak symmetry breaking, imply an upper bound on the lightest Higgs boson mass ($m_h\lsim62\GeV$) in a…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Lopez , D. Nanopoulos , X. Wang

Results are reported from a search for new particles that decay into a photon and two gluons, in events with jets. Novel jet substructure techniques are developed that allow photons to be identified in an environment densely populated with…

高能物理 - 实验 · 物理学 2020-01-01 CMS Collaboration

If Supersymmetry (SUSY) has a compressed spectrum the current limits from the LHC can be drastically reduced. We take possible `worst case' scenarios where combinations of the stop, squark and gluino masses are degenerate with the mass of…

高能物理 - 唯象学 · 物理学 2013-05-30 Herbert Dreiner , Michael Krämer , Jamie Tattersall

A search for supersymmetry or other new physics resulting in similar final states is presented using a data sample of 4.73 inverse femtobarns of pp collisions collected at sqrt(s)=7 TeV with the CMS detector at the LHC. Fully hadronic final…

高能物理 - 实验 · 物理学 2013-05-01 CMS Collaboration

We study the allowed parameter space of the constrained minimal supersymmetric Standard Model (cMSSM) in the light of direct searches, constraints from $B$-physics (including the recent measurement of the branching ratio for $B_s \to…

高能物理 - 唯象学 · 物理学 2013-05-30 Diptimoy Ghosh , Monoranjan Guchait , Sreerup Raychaudhuri , Dipan Sengupta

This letter reports the results of a search for top and bottom squarks from gluino pair production in 4.7 fb^-1 of pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC. The search is performed in events with large missing…

高能物理 - 实验 · 物理学 2013-06-24 ATLAS Collaboration

We use ATLAS and CMS searches in the mono-jet + missing energy and mono-photon + missing energy final state to set limits on the couplings of dark matter to quarks and gluons. Working in an effective field theory framework we compare…

高能物理 - 唯象学 · 物理学 2014-06-10 Patrick J. Fox , Roni Harnik , Joachim Kopp , Yuhsin Tsai

A search for new physics is performed based on all-hadronic events with large missing transverse momentum produced in proton-proton collisions at sqrt(s) = 13 TeV. The data sample, corresponding to an integrated luminosity of 2.3 inverse…

高能物理 - 实验 · 物理学 2016-05-13 CMS Collaboration

We discuss the current status of theoretical and experimental constraints on the real Higgs singlet extension of the Standard Model. For the second neutral (non-standard) Higgs boson the full mass range from 1 GeV to 1 TeV accessible at…

高能物理 - 唯象学 · 物理学 2017-02-06 Guillaume Chalons , David Lopez-Val , Tania Robens , Tim Stefaniak

We show bounds on five- and six-dimensional universal extra dimension (UED) models from the latest results of the Higgs searches at the LHC and from the electroweak precision data for the S and T parameters. We consider the minimal UED…

高能物理 - 唯象学 · 物理学 2013-08-15 Takuya Kakuda , Kenji Nishiwaki , Kin-ya Oda , Ryoutaro Watanabe

Requiring the two-Higgs-doublet model II to accommodate the 3$\sigma$ deviation in the muon anomalous magnetic moment imposes specific constraints on the Higgs spectrum. We analyze the combination of all the relevant, available, constraints…

高能物理 - 唯象学 · 物理学 2009-11-10 Kingman Cheung , Otto C. W. Kong