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Accès ouvert déclaré 2020 article

Search for Supersymmetry with a Compressed Mass Spectrum in Events with a Soft τ Lepton, a Highly Energetic Jet, and Large Missing Transverse Momentum in Proton-Proton Collisions at s=13 TeV

32Citations signalées — pas une note de qualité
222Institutions déclarées
45Pays d’affiliation déclarés

Résumé fourni par la source

The first search for supersymmetry in events with an experimental signature of one soft, hadronically decaying $\ensuremath{\tau}$ lepton, one energetic jet from initial-state radiation, and large transverse momentum imbalance is presented. These event signatures are consistent with direct or indirect production of scalar $\ensuremath{\tau}$ leptons ($\stackrel{\texttildelow{}}{\ensuremath{\tau}}$) in supersymmetric models that exhibit coannihilation between the $\stackrel{\texttildelow{}}{\ensuremath{\tau}}$ and the lightest neutralino (${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{0}$), and that could generate the observed relic density of dark matter. The data correspond to an integrated luminosity of $77.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ collected with the CMS detector at the LHC in 2016 and 2017. The results are interpreted in a supersymmetric scenario with a small mass difference ($\mathrm{\ensuremath{\Delta}}m$) between the chargino (${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}}$) or next-to-lightest neutralino (${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{2}^{0}$), and the ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{0}$. The mass of the $\stackrel{\texttildelow{}}{\ensuremath{\tau}}$ is assumed to be the average of the ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}}$ and ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{0}$ masses. The data are consistent with standard model background predictions. Upper limits at 95% confidence level are set on the sum of the ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}}$, ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{2}^{0}$, and $\stackrel{\texttildelow{}}{\ensuremath{\tau}}$ production cross sections for $\mathrm{\ensuremath{\Delta}}m({\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}},{\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{0})=50\text{ }\text{ }\mathrm{GeV}$, resulting in a lower limit of 290 GeV on the mass of the ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}}$, which is the most stringent to date and surpasses the bounds from the LEP experiments.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Search for Supersymmetry with a Compressed Mass Spectrum in Events with a Soft <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>τ</mml:mi></mml:math> Lepton, a Highly Energetic Jet, and Large Missing Transverse Momentum in Proton-Proton Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>
Date Crossref
29/01/2020
Éditeur
American Physical Society (APS)
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

A. Alikhanyan National LaboratoryInstitute of High Energy PhysicsUniversity of AntwerpVrije Universiteit BrusselUniversité Libre de BruxellesGhent University HospitalUCLouvainCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Estadual Paulista (Unesp)Universidade Federal do ABCBulgarian Academy of SciencesInstitute for Nuclear Research and Nuclear EnergySofia University "St. Kliment Ohridski"Beihang UniversityPeking UniversityInstitute of High Energy PhysicsUniversity of KansasAbdus Salam Centre for PhysicsTsinghua UniversityUniversity of VirginiaZhejiang UniversityUniversidad de Los AndesUniversidad de AntioquiaUniversity of SplitRuđer Bošković InstituteUniversity of CyprusCharles UniversityNational Polytechnic SchoolUniversidad San Francisco de QuitoAcademy of Scientific Research and TechnologyNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiHelsinki Institute of PhysicsUniversity of FloridaLappeenranta-Lahti University of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversCentre National de la Recherche ScientifiqueÉcole PolytechniqueInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire Leprince-RinguetInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesLyon 1 UniversitéInstitute of Nuclear Physics of LyonGeorgian Technical UniversityTbilisi State UniversityRWTH Aachen UniversitySaha Institute of Nuclear PhysicsDeutsches Elektronen-Synchrotron DESYIndian Institute of Technology MadrasEuropean Organization for Nuclear ResearchKarlsruhe Institute of TechnologyUniversität HamburgNational Centre of Scientific Research "Demokritos"Institute of Nuclear and Particle PhysicsNational and Kapodistrian University of AthensNational Technical University of AthensUniversity of IoanninaEötvös Loránd UniversityHUN-REN Wigner Research Centre for PhysicsHUN-REN Institute for Nuclear ResearchUniversity of DebrecenKároly Róbert University CollegeIndian Institute of Science BangaloreNational Institute of Science Education and ResearchPanjab UniversityUniversity of Nebraska–LincolnIndian Institute of Science Education and Research PuneUniversity of DelhiRice UniversityNorthwestern UniversityTata Institute of Fundamental ResearchBhabha Atomic Research CentreFermi National Accelerator LaboratoryInstitute for Research in Fundamental SciencesUniversity College DublinIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of Bari Aldo MoroPolytechnic University of BariIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversity of CataniaIstituto Nazionale di Fisica Nucleare, Sezione di CataniaIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeUniversity of FlorenceIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of BasilicataUniversity of Naples Federico IIMarconi UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of PaduaIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of PaviaIstituto Nazionale di Fisica Nucleare, Sezione di PisaScuola Normale SuperioreUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di Roma ISapienza University of RomeIstituto Nazionale di Fisica Nucleare, Sezione di TorinoUniversity of TurinUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”University of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteKyungpook National UniversityKansas State UniversityUniversity of SeoulBrown UniversitySungkyunkwan UniversityTexas Tech UniversitySeoul National UniversityChonnam National UniversitySejong UniversityTexas A&M UniversityHanyang UniversityKorea UniversityKyung Hee UniversityMassachusetts Institute of TechnologyRiga Technical UniversityVilnius UniversityUniversity of MalayaUniversidad de SonoraUniversity of AmericaCatholic University of AmericaInstituto Politécnico NacionalCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalIbero American UniversityBenemérita Universidad Autónoma de PueblaAutonomous University of San Luis PotosíUniversity of MontenegroUniversity of AucklandUniversity of CanterburyAGH University of KrakowNational Centre for Nuclear ResearchUniversity of WarsawLIP - Laboratory of Instrumentation and Experimental Particle PhysicsJoint Institute for Nuclear ResearchPetersburg Nuclear Physics InstituteInstitute for Nuclear ResearchKurchatov InstituteInstitute for Theoretical and Experimental PhysicsMoscow Institute of Physics and TechnologyNational Research Nuclear University MEPhIP.N. Lebedev Physical Institute of the Russian Academy of SciencesRutherford Appleton LaboratoryLomonosov Moscow State UniversityNovosibirsk State UniversityInstitute for High Energy PhysicsNational Research Tomsk State UniversityTomsk Polytechnic UniversityUniversity of BelgradeVinča Institute of Nuclear SciencesCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversidad Autónoma de MadridUniversidad de OviedoUniversidad de CantabriaInstituto de Física de CantabriaUniversity of ColomboUniversity of RuhunaPaul Scherrer InstituteETH ZurichUniversity of ZurichNational Central UniversityNational Taiwan UniversityUniversity of California San DiegoChulalongkorn UniversityCukurova UniversityMiddle East Technical UniversityBoğaziçi UniversityIstanbul Technical UniversityIstanbul UniversityInstitute for Scintillation MaterialsKharkiv Institute of Physics and TechnologyUniversity of BristolImperial College LondonUniversity of Puerto Rico-MayaguezBrunel University of LondonBaylor UniversityUniversity of AlabamaBoston UniversityUniversity of California, DavisPrinceton UniversityUniversity of California, Los AngelesUniversity of California, RiversideUniversity of Wisconsin–MadisonUniversity of California, Santa BarbaraCalifornia Institute of TechnologyCarnegie Mellon UniversityUniversity of Colorado BoulderCornell UniversityFlorida International UniversityFlorida State UniversityFlorida Institute of TechnologyUniversity of Illinois ChicagoUniversity of IowaJohns Hopkins UniversityLawrence Livermore National LaboratoryUniversity of Maryland, College ParkUniversity of MinnesotaUniversity of MississippiUniversity at Buffalo, State University of New YorkNortheastern UniversityUniversity of Notre DameThe Ohio State UniversityPurdue University West LafayettePurdue University NorthwestUniversity of RochesterRutgers, The State University of New JerseyUniversity of Tennessee at KnoxvilleVanderbilt UniversityWayne State University

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