English
Related papers

Related papers: Probing compressed mass spectra in electroweak sup…

200 papers

The most recent CMS results from a search for supersymmetry (SUSY) with a compressed mass spectrum in leptonic final states will be presented. The search is targeting signatures with missing transverse momentum and two or three low-momentum…

High Energy Physics - Experiment · Physics 2021-11-30 Ioanna Papavergou , Emmanouil Vourliotis

A multitude of searches have already been performed by the ATLAS and CMS collaborations at the LHC to probe the heavy Higgses of the Minimal Supersymmetric Standard Model (MSSM) through their decay to the Standard Model particles. In this…

High Energy Physics - Phenomenology · Physics 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

A search is presented for charged, long-lived supersymmetric particles in final states with one or more disappearing tracks. The search is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the…

High Energy Physics - Experiment · Physics 2024-04-29 CMS Collaboration

Results are reported from a search for the pair production of top squarks, the supersymmetric partners of top quarks, in final states with jets and missing transverse momentum. The data sample used in this search was collected by the CMS…

High Energy Physics - Experiment · Physics 2016-08-18 CMS Collaboration

Electroweak scale higgsinos with a nearly degenerate spectrum in supersymmetric models are well-motivated, but generally less constrained at collider experiments as the decay products are often too soft to detect. Initial photon fusions…

High Energy Physics - Phenomenology · Physics 2024-06-10 Hang Zhou , Ning Liu

We consider a specific class of events of the SUSY particle production at the LHC without missing p_T. Namely, we discuss the chargino pair production with a further decay into the W-boson and the neutralino when the masses of the chargino…

High Energy Physics - Phenomenology · Physics 2016-04-01 A. S. Belyaev , D. I. Kazakov , A. Sperling

We examine the compressed mass spectrum with sub-TeV top squark ($\tilde t$) as lightest colored (s)particle in natural supersymmetry (SUSY). Such spectra are searched along with an additional hard jet, not only to boost the soft decay…

High Energy Physics - Phenomenology · Physics 2018-05-17 Partha Konar , Tanmoy Mondal , Abhaya Kumar Swain

We assess the potential of detecting a charged Higgs boson of the MSSM at the LHC via its decays into a chargino and a neutralino. We focus our attention on the region of parameter space with $m_{H^{\pm}} > m_t$ and $3 \lsim tan(beta) \lsim…

High Energy Physics - Phenomenology · Physics 2009-01-07 Mike Bisset , Monoranjan Guchait , Stefano Moretti

Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two tau leptons. The data sample corresponds to an integrated luminosity between 18.1 inverse femtobarns…

High Energy Physics - Experiment · Physics 2017-04-11 CMS Collaboration

If the sneutrino mass is below the chargino mass, the dominant decay mode of the lightest chargino is via a two-body decay channel $\chi^{\pm}_1 \ra \tilde{\nu} + l^{\pm}$. Sneutrinos are invisible in $R$-parity conserving supersymmetric…

High Energy Physics - Phenomenology · Physics 2011-04-15 Jan Kalinowski

Once supersymmetric neutralinos $\tilde{\chi}^0$ are produced copiously at $e^+e^-$ linear colliders, their characteristics can be measured with high precision. In particular, the fundamental parameters in the gaugino/higgsino sector of the…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Y. Choi , M. Drees , J. Song

A search for pair production of supersymmetric particles in events with two oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. The data sample corresponds to an integrated luminosity of 35.9…

High Energy Physics - Experiment · Physics 2018-11-26 CMS Collaboration

We review the evaluation of two-body decay modes of charginos in the Minimal Supersymmetric Standard Model with complex parameters (cMSSM). Assuming heavy scalar quarks we take into account all decay channels involving charginos,…

High Energy Physics - Phenomenology · Physics 2012-02-03 S. Heinemeyer , F. v. d. Pahlen , C. Schappacher

Within the framework of supersymmetry, charginos and/or neutralinos are often the preferred topics of searches for experimental evidence. This is due to the facts that in much of parameter space they are the lightest supersymmetric partners…

High Energy Physics - Experiment · Physics 2009-10-21 T. Adams

We introduce $Recursive~Jigsaw~Reconstruction$, a technique for analyzing reconstructed particle interactions in the presence of kinematic and combinatoric unknowns associated with unmeasured and indistinguishable particles, respectively.…

High Energy Physics - Phenomenology · Physics 2017-12-27 Paul Jackson , Christopher Rogan

In this work, we examine the sensitivity of monojet searches at the LHC to directly produced charginos and neutralinos (electroweakinos) in the limit of small mass splitting, where the traditional multilepton plus missing energy searches…

High Energy Physics - Phenomenology · Physics 2015-06-18 Pedro Schwaller , Jose Zurita

An inclusive search for anomalous Higgs boson production in the diphoton decay channel and in association with at least one jet is presented, using LHC proton-proton collision data collected by the CMS experiment at a center-of-mass energy…

High Energy Physics - Experiment · Physics 2018-02-20 CMS Collaboration

Results are presented from a search for the direct electroweak production of charginos and neutralinos in signatures with either two or more leptons (electrons or muons) of the same electric charge, or with three or more leptons, which can…

High Energy Physics - Experiment · Physics 2018-04-26 CMS Collaboration

A search is reported for pairs of light Higgs bosons (H$_1$) produced in supersymmetric cascade decays in final states with small missing transverse momentum. A data set of LHC pp collisions collected with the CMS detector at $\sqrt{s}$ =…

High Energy Physics - Experiment · Physics 2023-07-13 CMS Collaboration

Using the data collected during Run I of LHC operation the CMS Collaboration performed multiple analyses searching for the direct electroweak production of supersymmetric particles in proton-proton collisions. Different decay modes of the…

High Energy Physics - Experiment · Physics 2014-09-15 Pieter Everaerts