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We investigate the parameter space of the minimal supersymmetric Standard Model (MSSM) where the gluino and squark masses are much above 1 TeV but the remaining part of the sparticle spectrum is accessible to the Large Hadron Collider at…

High Energy Physics - Phenomenology · Physics 2009-01-08 Subhaditya Bhattacharya , AseshKrishna Datta , Biswarup Mukhopadhyaya

The discovery potential of both singlet and doublet vector-like leptons (VLLs) at the Large Hadron Collider (LHC) as well as at the not-so-far future muon and electron machines is explored. The focus is on a single production channel for…

High Energy Physics - Phenomenology · Physics 2023-02-14 António P. Morais , António Onofre , Felipe F. Freitas , João Gonçalves , Roman Pasechnik , Rui Santos

One way to ameliorate the SUSY flavor and CP problems is to postulate that scalar masses lie in the TeV or beyond regime. For example, the focus point (FP) region of the minimal supergravity (mSUGRA) model is especially compelling in that…

High Energy Physics - Phenomenology · Physics 2008-11-26 Howard Baer , Vernon Barger , Gabe Shaughnessy , Heaya Summy , Lian-tao Wang

At the Tevatron, the most promising channel to detect supersymmetry is three leptons plus missing energy, where the leptons are $e$'s and/or $\mu$'s. This final state appears from the production of chargino and second lighetst neutralino.…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Accomando , R. Arnowitt , B. Dutta

Trilepton event represents one of the probes of the new physics at high energy colliders. In this talk, we consider the search for processes with final states $\ell_{\alpha}^{\pm }\ell_{\beta}^{\pm}\ell_{\gamma}^{\mp}$ + $\slashed{E}_{T}$…

High Energy Physics - Phenomenology · Physics 2017-01-19 Dounia Cherigui , Chahrazed Guella , Amine Ahriche , Salah Nasri

We explore the discovery potential of doubly charged Higgs bosons (\xi^{\pm\pm}) at the CERN Large Hadron Collider (LHC). For moderate values of the coupling constants in the original Type-II seesaw model, these doubly-charged Higgs bosons…

High Energy Physics - Phenomenology · Physics 2015-03-14 Swarup Kumar Majee , Narendra Sahu

Continuum supersymmetry is a class of models in which the supersymmetric partners together with part of the standard model come from a conformal sector, broken in the IR near the TeV scale. Such models not only open new doors for addressing…

High Energy Physics - Phenomenology · Physics 2020-02-19 Christina Gao , Ali Shayegan Shirazi , John Terning

Results are reported from a search for physics beyond-the-standard-model, such as supersymmetry, in final states with at least three charged leptons, in any combination of electrons or muons. The data sample corresponds to an integrated…

High Energy Physics - Experiment · Physics 2017-09-26 CMS Collaboration

The study of displaced vertices containing two b--jets may provide a double discovery at the Large Hadron Collider (LHC): we show how it may not only reveal evidence for supersymmetry, but also provide a way to uncover the Higgs boson…

High Energy Physics - Phenomenology · Physics 2015-05-13 F. de Campos , O. J. P. Eboli , M. B. Magro , D. Restrepo , J. W. F. Valle

The requirement of t-b-\tau Yukawa coupling unification is common in simple grand unified models based on the gauge group SO(10), and it also places a severe constraint on the expected spectrum of superpartners. For Yukawa-unified models…

High Energy Physics - Phenomenology · Physics 2009-05-08 Howard Baer , Sabine Kraml , Sezen Sekmen , Heaya Summy

The discovery of supersymmetry is one of the major goals of the current experiments at the Tevatron and in proposed experiments at the Large Hadron Collider (LHC). However when sparticles are produced the signatures of their production will…

High Energy Physics - Phenomenology · Physics 2008-08-26 Zuowei Liu

Confining dark sectors with pseudo-conformal dynamics produce SUEP, or Soft Unclustered Energy Patterns, at colliders: isotropic dark hadrons with soft and democratic energies. We target the experimental nightmare scenario, SUEPs in exotic…

High Energy Physics - Phenomenology · Physics 2022-01-05 Jared Barron , David Curtin , Gregor Kasieczka , Tilman Plehn , Aris Spourdalakis

We present a search for supersymmetry (SUSY) in the fully hadronic final state with the CMS detector at the LHC. This final state contains at least two jets and a significant transverse energy imbalance due to neutralinos escaping…

High Energy Physics - Experiment · Physics 2019-08-13 Gheorghe Lungu

Martin has proposed a scenario dubbed ``compressed supersymmetry'' (SUSY) where the MSSM is the effective field theory between energy scales M_{\rm weak} and M_{\rm GUT}, but with the GUT scale SU(3) gaugino mass M_3<< M_1 or M_2. As a…

High Energy Physics - Phenomenology · Physics 2014-11-18 Howard Baer , Andrew Box , Eun-Kyung Park , Xerxes Tata

We examine the discovery potential for double Higgs production at the high luminosity LHC in the final state with two $b$-tagged jets, two leptons and missing transverse momentum. Although this dilepton final state has been considered a…

High Energy Physics - Phenomenology · Physics 2019-09-19 Jeong Han Kim , Minho Kim , Kyoungchul Kong , Konstantin T. Matchev , Myeonghun Park

Type II seesaw leptogenesis simultaneously explains the origin of neutrino masses, the baryon asymmetry of our universe, and the inflation. The Large Hadron Collider(LHC) provides an opportunity to directly test type II seesaw leptogenesis…

High Energy Physics - Phenomenology · Physics 2023-08-11 Chengcheng Han , Zhanhong Lei , Weihao Liao

The search for Beyond the Standard Model (BSM) physics is one of the major tasks of the LHC, CERN. In these proceedings, I review the status of searches for Supersymmetry by the ATLAS and CMS collaborations. The efforts in both the hadronic…

High Energy Physics - Experiment · Physics 2008-08-22 Oleg Brandt

Results are presented of searches for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons in sqrt{s}=7 TeV proton-proton collisions at the Large Hadron…

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

A pressing problem for supersymmetry (SUSY) phenomenologists is how to incorporate Large Hadron Collider search results into parameter fits designed to measure or constrain the SUSY parameters. Owing to the computational expense of fully…

High Energy Physics - Phenomenology · Physics 2015-05-28 A. Buckley , A. Shilton , M. J. White

A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb-1 of sqrt(s)=7 TeV pp collisions produced by the Large Hadron Collider and…

High Energy Physics - Experiment · Physics 2013-06-24 ATLAS Collaboration