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Related papers: Signals for Minimal Supergravity at the CERN Large…

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We use ISAJET to perform a detailed study of the missing transverse energy $\eslt$ plus multi-jet signal expected from superparticle production at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity…

High Energy Physics - Phenomenology · Physics 2016-09-01 H. Baer , C. H. Chen , F. Paige , X. Tata

The potential of seeing supersymmetry (SUSY) at the CERN Large Hadron Collider (LHC) was studied by looking at 3 types of signals: dilepton events from slepton pair productions, trilepton events from chargino/neutralino productions and…

High Energy Physics - Phenomenology · Physics 2016-09-01 Chih-Hao Chen

Within the supergravity framework, sleptons are expected to be considerably lighter than squarks if gluinos and squarks are approximately degenerate. This can lead to a significant enhancement in leptonic branching ratio for neutralinos,…

High Energy Physics - Phenomenology · Physics 2009-12-30 H. Baer , C. Kao , X. Tata

We examine signals for sparticle production at the CERN Large Hadron Collider (LHC) within the framework of gauge mediated supersymmetry breaking models with a low SUSY breaking scale for four different model lines, each of which leads to…

High Energy Physics - Phenomenology · Physics 2009-10-31 Howard Baer , Pedro G. Mercadante , Xerxes Tata , Yili Wang

For large values of the minimal supergravity model parameter $\tan\beta$, the tau lepton and the bottom quark Yukawa couplings become large, leading to reduced masses of $\tau$-sleptons and $b$-squarks relative to their first and second…

High Energy Physics - Phenomenology · Physics 2009-10-31 Howard Baer , Chih-hao Chen , Manuel Drees , Frank Paige , Xerxes Tata

We examine the capability of a $\sqrt{s}=2$ TeV Tevatron $p\bar p$ collider to discover supersymmetry, given a luminosity upgrade to amass $25\ fb^{-1}$ of data. We compare with the corresponding reach of the Tevatron Main Injector ($1\…

High Energy Physics - Phenomenology · Physics 2009-10-28 Howard Baer , Chih-Hao Chen , Chung Kao , Xerxes Tata

We examine the supersymmetry (SUSY) reach of the CERN LHC operating at $\sqrt{s}=10$ and 14 TeV within the framework of the minimal supergravity model. We improve upon previous reach projections by incorporating updated background…

High Energy Physics - Phenomenology · Physics 2009-12-10 H. Baer , V. Barger , A. Lessa , X. Tata

We study the most promising signals of Constrained Minimal Supersymmetry detectable at a luminosity upgraded 2 TeV Fermilab Tevatron collider. Using a full event-level Monte Carlo based on Pythia/Jetset, we simulate the trilepton signal…

High Energy Physics - Phenomenology · Physics 2016-08-24 Stephen Mrenna , G. L. Kane , Graham D. Kribs , James D. Wells

We investigate signatures of the minimal supersymmetric inverse seesaw model at the large hadron collider (LHC) with three isolated leptons and large missing energy (3\ell + \mET or 2\ell + 1\tau + \mET, with \ell=e,\mu) in the final state.…

High Energy Physics - Phenomenology · Physics 2015-06-03 Subhadeep Mondal , Sanjoy Biswas , Pradipta Ghosh , Sourov Roy

We examine the capability of the CERN Large Hadron Collider to discovery supersymmetry (SUSY) with energy \sqrt{s}=7 TeV and integrated luminosity of about 1 fb^{-1}. Our results are presented within the paradigm minimal supergravity model…

High Energy Physics - Phenomenology · Physics 2014-11-20 Howard Baer , Vernon Barger , Andre Lessa , Xerxes Tata

The production of third generation leptoquarks can give rise to multilepton events accompanied by jets and missing transverse energy. In this work we study the signals of these leptoquarks at the CERN Large Hadron Collider and compare them…

High Energy Physics - Phenomenology · Physics 2009-10-31 O. J. P. Eboli , R. Z. Funchal , T. L. Lungov

We examine the reach of the CERN LHC pp collider for supersymmetric models where the dominant contribution to soft SUSY breaking parameters arises from the superconformal anomaly. In the simplest viable anomaly mediated SUSY breaking (AMSB)…

High Energy Physics - Phenomenology · Physics 2009-10-31 Howard Baer , J. K. Mizukoshi , Xerxes Tata

We study the prospects for detecting the sleptons of the Minimal Supersymmetric Standard Model at hadron colliders and supercolliders. We use ISAJET 7.03 to simulate charged slepton and sneutrino pair production, incorporating slepton and…

High Energy Physics - Phenomenology · Physics 2011-03-17 H. Baer , C. Chen , F. Paige , X. Tata

Run 1 data of the Large Hadron Collider (LHC) contain excessive events in the same-sign dilepton channel with b-jets and missing transverse energy (MET), which were observed by five separate analyses from ATLAS and CMS collaborations. We…

High Energy Physics - Phenomenology · Physics 2015-11-04 Peisi Huang , Ahmed Ismail , Ian Low , Carlos E. M. Wagner

An unconstrained minimal supersymmetric standard model with the superpartners of the strongly interacting particles very heavy (close to the kinematic reach of the LHC or even beyond it) and a relatively light electroweak sector is…

High Energy Physics - Phenomenology · Physics 2009-09-24 Nabanita Bhattacharyya , Amitava Datta

We present a more detailed account of our study (hep-ph/9903238) for the supersymmetry reach of the Tevatron in channels with isolated leptons and identified tau jets. We review the theoretical motivations for expecting such signatures, and…

High Energy Physics - Experiment · Physics 2007-05-23 Joseph D. Lykken , Konstantin T. Matchev

In this presentation an account of the multi-lepton (electrons and muons) anomalies at the LHC is given. These include the excess production of opposite sign leptons with and without b-quarks, including a corner of the phase-space with a…

High Energy Physics - Phenomenology · Physics 2021-09-09 Bruce Mellado

If $R$-parity is not conserved, the lightest supersymmetric particle (LSP) could decay via lepton number violating or baryon number violating interactions. The latter case is particularly insidious since it leads to a reduction of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Howard Baer , Chih-hao Chen , Xerxes Tata

The signatures of dark matter at the LHC commonly involve, in simplified scenarios, the production of a single particle plus large missing energy, from the undetected dark matter. However, in $Z'$-portal scenarios anomaly cancellation…

High Energy Physics - Phenomenology · Physics 2020-05-20 J. A. Aguilar-Saavedra , J. A. Casas , J. Quilis , R. Ruiz de Austri

We analyse the events with two same-flavour, opposite-sign leptons + $E_T^{miss}$ + (jets) as expected in pp collisions at LHC within the framework of the minimal Supergravity Model. The objective is the determination of the parameters m_0…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. Denegri , W. Majerotto , L. Rurua
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