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Related papers: Stopping Gluinos

200 papers

Searches for supersymmetry in the framework of R-parity conserving models have been performed in data collected by the D0 detector at the Tevatron $p\bar{p}$ collider at a center-of-mass energy of 1.96 TeV. Topologies analyzed consist of…

High Energy Physics - Experiment · Physics 2019-08-14 Mansoora Shamim

We study the implications at the LHC for the minimal (least) version of the supersymmetric standard model. In this model supersymmetry is broken by gravity and extra gauge interactions effects, providing a spectrum similar in several…

High Energy Physics - Phenomenology · Physics 2014-04-15 J. de Blas , A. Delgado , B. Ostdiek

The latest search for massive long-lived hadronising particles with the ATLAS detector is presented. The search is conducted with the inner detector and an integrated luminosity corresponding to 2.06 fb-1 at sqrt(s) = 7 TeV. For Split-SUSY…

High Energy Physics - Experiment · Physics 2019-08-13 Morten Dam Joergensen

A search for Supersymmetry involving the pair production of gluinos decaying via third-generation squarks to the lightest neutralino is reported. It uses an LHC proton--proton dataset at a center-of-mass energy $\sqrt{s} = 13$ TeV with an…

High Energy Physics - Experiment · Physics 2016-08-17 ATLAS Collaboration

The production of exotic heavy hadronic particles arise in several models for physics beyond the Standard Model. A study of the detection possibilities of new heavy hadron states with the ATLAS detector is presented. The focus is on…

High Energy Physics - Experiment · Physics 2008-11-26 A. C. Kraan , J. B. Hansen , P. Nevski

We consider supergravity with a gravitino lightest supersymmetric particle. The next-to-lightest supersymmetric particle (NLSP) decays to the gravitino with lifetime naturally in the range 10^4 - 10^8 s. However, cosmological constraints…

High Energy Physics - Phenomenology · Physics 2014-11-18 Jonathan L. Feng , Bryan T. Smith

We discuss collider search strategies of gluinos which are highly degenerate with the lightest neutralino in mass. This scenario is fairly difficult to probe with conventional search strategies at colliders, and thus may provide a hideaway…

High Energy Physics - Phenomenology · Physics 2017-04-05 Natsumi Nagata , Hidetoshi Otono , Satoshi Shirai

A search has been performed for long-lived particles that could have come to rest within the CMS detector, using the time intervals between LHC beam crossings. The existence of such particles could be deduced from observation of their…

High Energy Physics - Experiment · Physics 2015-04-15 CMS Collaboration

To unambiguously claim that we see a gluino at the LHC we need to prove its fermionic nature. Looking only at angular correlations we can distinguish a universal extra dimensional interpretation of a gluino cascade decay (assuming a bosonic…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexandre Alves , Oscar Eboli , Tilman Plehn

At hadron colliders, one of the most important channels for sparticle production is expected to be the gluino pair production. In the scenario where the sbottom is lighter than the gluino, gluinos can decay into sbottom and bottom quarks.…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Mahmoudi , A. Deandrea

An upper limit on the masses of scalar superpartners in split supersymmetry is found by considering cosmological constraints on long-lived gluinos. Over most of parameter space, the most stringent constraint comes from big bang…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. Arvanitaki , C. Davis , P. W. Graham , A. Pierce , J. G. Wacker

Supersymmetry may be discovered at hadron colliders by searching for events similar to the top quark signal of two isolated leptons. In the case of gluino production, the most distinguishing feature is that in half the events the two…

High Energy Physics - Phenomenology · Physics 2009-10-22 R. Michael Barnett , John F. Gunion , Howard E. Haber

A search for long-lived charged particles reaching the muon spectrometer is performed using a data sample of 37 pb^-1 from pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

Several searches for long-lived particles have been performed using data from p-pbar collisions from Run II at the Tevatron. In most cases, new analysis techniques have been developed to carry out each search and/or estimate the…

High Energy Physics - Experiment · Physics 2008-11-26 T. Adams

We investigate charged tracks signals of a supersymmetric scenario, where the lighter stop is the next-to-lightest supersymmetric particle (NLSP). It is found that such an NLSP is stable on the scale of the detector at the LHC if one has a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Debajyoti Choudhury , Sudhir Kumar Gupta , Biswarup Mukhopadhyaya

We reinterpret the generic CDF charged massive particle limit to obtain a limit on the mass of a stable or long-lived gluino. Various sources of uncertainty are examined. The $R$-hadron spectrum and scattering cross sections are modeled…

High Energy Physics - Phenomenology · Physics 2015-03-17 G. R. Farrar , R. Mackeprang , D. Milstead , J. P. Roberts

In a class of supergravity models, the gluino and photino are massless at tree level and receive small masses through radiative corrections. In such models, one expects a gluino-gluon bound state, the $R_0$, to have a mass of between 1.0…

High Energy Physics - Phenomenology · Physics 2009-10-28 Carl Carlson , Greg Dorata , David Morgan , Marc Sher

Current experiments allow the possibility of gluino masses below about 600 MeV if the lifetime of the gluino is longer than 100 picoseconds. If the mass and lifetime are in this window, then photoproduction of pairs of gluino-gluon bound…

High Energy Physics - Phenomenology · Physics 2009-10-28 Carl Carlson , Marc Sher

We examine the $R_{p}$-violating signal of single gluino production associated with a charged lepton or neutrino at the large hadron collider (LHC), in the model of R-parity relaxed supersymmetric model. If the parameters in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yin Xi , Ma Wen-Gan , Wan Lang-Hui , Jiang Yi

This paper presents a search for direct electroweak gaugino or gluino pair production with a chargino nearly mass-degenerate with a stable neutralino. It is based on an integrated luminosity of 36.1 $\mathrm{fb}^{-1}$ of $pp$ collisions at…

High Energy Physics - Experiment · Physics 2018-06-20 ATLAS Collaboration