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Related papers: SUSY at the LHC without Missing P_T

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A search for supersymmetry is performed in events with a single electron or muon in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated…

High Energy Physics - Experiment · Physics 2017-02-08 CMS Collaboration

A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an $R$-parity-violating coupling into a lepton and a $W$, $Z$, or Higgs boson. The…

High Energy Physics - Experiment · Physics 2021-06-16 ATLAS Collaboration

A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell $W$ and $Z$ bosons is presented for a three-lepton final state. The analyzed proton-proton…

High Energy Physics - Experiment · Physics 2020-04-17 Atlas Collaboration

We analyze the cascade decays of the scalar quarks and gluinos of the Minimal Supersymmetric extension of the Standard Model, which are abundantly produced at the Large Hadron Collider, into heavier charginos and neutralinos which then…

High Energy Physics - Phenomenology · Physics 2008-11-26 Aseshkrishna Datta , Abdelhak Djouadi , Monoranjan Guchait , Yann Mambrini

Searches for direct electroweak production of charginos and neutralinos in signatures with two light leptons of the same charge and with three or more leptons including up to two hadronically decaying {\tau} leptons are presented . The full…

High Energy Physics - Experiment · Physics 2017-09-01 Juan. R. González Fernández

A search is presented for long-lived charged particles that decay within the volume of the silicon tracker of the CMS experiment. Such particles can produce events with an isolated track that is missing hits in the outermost layers of the…

High Energy Physics - Experiment · Physics 2020-06-11 CMS Collaboration

We present a focused study of a predictive unified model whose measurable consequences are immediately relevant to early discovery prospects of supersymmetry at the LHC. ATLAS and CMS have released their analysis with 35~pb$^{-1}$ of data…

High Energy Physics - Phenomenology · Physics 2011-07-28 Daniel Feldman , Katherine Freese , Pran Nath , Brent D. Nelson , Gregory Peim

The purpose of this study is to determine the experimental uncertainties in measuring mass and cross section parameters of SUSY particles at a 500 GeV Linear Collider. In this study SUSY is a point in the focus point region of mSUGRA…

High Energy Physics - Experiment · Physics 2009-10-09 R. Gray , J. Alexander , K. M. Ecklund , L. Fields , D. Hertz , C. D. Jones , J. Pivarski , A. Birkedal , K. Matchev

Searches for the electroweak production of charginos, neutralinos and sleptons in final states characterized by the presence of two leptons (electrons and muons) and missing transverse momentum are performed using 20.3 fb-1 of proton-proton…

High Energy Physics - Experiment · Physics 2014-08-21 ATLAS Collaboration

We analyze the effects of the s-channel Higgs bosons exchange on the charginos and neutralinos-pair production in proton-proton collision at the CERN Large Hadron Collider (LHC) in the following channels: $pp \to \Cha^+\Cha^-/\Neu^0\Neu^0 +…

High Energy Physics - Phenomenology · Physics 2013-05-29 Abdesslam Arhrib , Rachid Benbrik , Mohamed Chabab , Chuan-Hung Chen

We investigate the signals of supersymmetry (SUSY) in a scenario where only the third family squarks and sleptons can be produced at the Large Hadron Collider (LHC), in addition to the gluino, charginos and neutralinos. The final states in…

High Energy Physics - Phenomenology · Physics 2009-10-20 Nishita Desai , Biswarup Mukhopadhyaya

The lighter chargino, $\widetilde{\chi}_1^{\pm}$, is a prime candidate to be the next-to-lightest SUSY particle (the NLSP). Several analyses of $\widetilde{\chi}_1^{\pm}$ pair-production at the ILC, at specific model-points, have been…

High Energy Physics - Phenomenology · Physics 2020-02-05 María Teresa Núñez Pardo de Vera , Mikael Berggren , Jenny List

The ATLAS and CMS collaborations have reported an excess of events in the \gamma\gamma, ZZ^*\to 4\ell and WW^* search channels at an invariant mass m \simeq 125 GeV, which could be the first evidence for the long-awaited Higgs boson. We…

High Energy Physics - Phenomenology · Physics 2013-05-30 Howard Baer , Vernon Barger , Azar Mustafayev

In supersymmetric models with light higgsinos (which are motivated by electroweak naturalness arguments), the direct production of higgsino pairs may be difficult to search for at LHC due to the low visible energy release from their decays.…

High Energy Physics - Phenomenology · Physics 2015-06-15 Howard Baer , Vernon Barger , Peisi Huang , Dan Mickelson , Azar Mustafayev , Warintorn Sreethawong , Xerxes Tata

Light top squarks (stops) and light higgsinos are the key features of natural SUSY, where the higgsinos $\tilde{\chi}^{\pm}_{1}$ and $\tilde{\chi}^0_{1,2}$ are nearly degenerate and act as the missing transverse energy ($E^{miss}_T$) at the…

High Energy Physics - Phenomenology · Physics 2016-02-10 Ken-ichi Hikasa , Jinmian Li , Lei Wu , Jin Min Yang

The 2011 dataset of the CMS experiment, consisting of an integrated luminosity of 4.98 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV, enables expanded searches for direct electroweak pair production of charginos and neutralinos in…

High Energy Physics - Experiment · Physics 2013-03-19 CMS Collaboration

Results are reported from a search for new physics in 13 TeV proton-proton collisions in the final state with large missing transverse momentum and two Higgs bosons decaying via H to bb-bar. The search uses a data sample accumulated by the…

High Energy Physics - Experiment · Physics 2018-02-14 CMS Collaboration

Heavy neutral Higgs boson production and decay into neutralino and chargino pairs is studied at the Large Hadron Collider in the context of the Minimal Supersymmetric Standard Model. Higgs boson decays into the heavier neutralino and…

High Energy Physics - Phenomenology · Physics 2009-09-14 Mike Bisset , Jun Li , Nick Kersting , Ran Lu , Filip Moortgat , Stefano Moretti

The Atlas and CMS collaborations have both reported an excess of events in the WW\star \rightarrow \ell+\ell- + ETmiss search channel, which could be the first evidence for the Higgs boson. In the context of the MSSM, the lightest SUSY…

High Energy Physics - Phenomenology · Physics 2013-05-29 Howard Baer , Vernon Barger , Peisi Huang , Azar Mustafayev

One of the first orders of business for LHC experiments after beam turn-on will be to calibrate the detectors using well understood Standard Model (SM) processes such as W and Z production and ttbar production. These familiar SM processes…

High Energy Physics - Phenomenology · Physics 2009-02-23 Howard Baer , Vernon Barger , Gabe Shaughnessy
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