Search for supersymmetry in events with at least three electrons or muons, jets, and missing transverse momentum in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV
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A search for new physics is carried out in events with at least three electrons or muons in any combination, jets, and missing transverse momentum. Results are based on the sample of proton-proton collision data produced by the LHC at a center-of-mass energy of 13 TeV and collected by the CMS experiment in 2016. The data sample analyzed corresponds to an integrated luminosity of 35.9 fb$$^{−1}$$. Events are classified according to the number of b jets, missing transverse momentum, hadronic transverse momentum, and the invariant mass of same-flavor dilepton pairs with opposite charge. No significant excess above the expected standard model background is observed. Exclusion limits at 95% confidence level are computed for four different supersymmetric simplified models with pair production of gluinos or third-generation squarks. In the model with gluino pair production, with subsequent decays into a top quark-antiquark pair and a neutralino, gluinos with masses smaller than 1610 GeV are excluded for a massless lightest supersymmetric particle. In the case of bottom squark pair production, the bottom squark masses are excluded up to 840 GeV for charginos lighter than 200 GeV. For a simplified model of heavy top squark pair production, the $$ {\tilde{\mathrm{t}}}_2 $$ mass is excluded up to 720, 780, or 710 GeV for models with an exclusive $$ {\tilde{\mathrm{t}}}_2\to {\tilde{\mathrm{t}}}_1\mathrm{H} $$ decay, an exclusive $$ {\tilde{\mathrm{t}}}_2\to {\tilde{\mathrm{t}}}_1\mathrm{Z} $$ decay, or an equally probable mix of those two decays. In order to provide a simplified version of the analysis for easier interpretation, a small set of aggregate signal regions also has been defined, providing a compromise between simplicity and analysis sensitivity.
- Research Organization:
- Helsinki Inst. of Phys.; Florida U.; Piri Reis U., Istanbul; Rutherford; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Strasbourg, IPHC; Naples U.; Brown U.; MIT; PSI, Villigen; U. Campinas; Rochester U.; Bologna U.; Seoul Natl. U.; Serpukhov, IHEP; Indian Inst. Tech., Bhubaneswar; Carnegie Mellon U.; Vrije U., Brussels; UCLA; Aachen, Tech. Hochsch.; NCBJ, Swierk; Dubna, JINR; Bingöl U.; IISER, Pune; Democritos Nucl. Res. Ctr.; IIUM, Kuala Lumpur; Northeastern U.; UC, Santa Barbara; Erzincan U.; Natl. Tech. U., Athens; Cag U., Mersin; Chonnam Natl. U.; Belgrade U.; Minsk, Inst. Nucl. Problems; Stefan Meyer Inst. Subatomare Phys.; Taiwan, Natl. Taiwan U.; Conacyt, Mexico; UC, Davis; INFN, Pavia; Bari U.; Iowa U.; Moscow Phys. Eng. Inst.; Charles U.; Notre Dame U.; Peking U.; Lebedev Inst.; Ruhuna U.; Isfahan Tech. U.; BeiHang U.; Ecole Polytechnique; Budapest, RMKI; Panjab U.; NICPB, Tallinn; Iberoamericana U.; Kansas State U.; Wayne State U.; Mimar Sinan U.; St. Petersburg Polytechnic Inst.; Rome U.; Split Tech. U.; VINCA Inst. Nucl. Sci., Belgrade; INFN, Naples; Quaid-i-Azam U.; LIP, Lisbon; Cantabria Inst. of Phys.; San Luis Potosi U.; Catholic U. America; Middle East Tech. U., Ankara; Chonbuk Natl. U.; Lyon, IPN; Canterbury U.; Indian Inst. Tech., Madras; Sofiya, Inst. Nucl. Res.; UC, Riverside; Princeton U.; Baylor U.; University Coll., Dublin; Purdue U., Calumet; Korea U.; Novosibirsk, IYF; Wisconsin U., Madison; Beykent U.; Imperial Coll., London; Cairo, Acad. Sci. Res. Tech.; Texas A-M; Boskovic Inst., Zagreb; Mississippi U.; IPM, Tehran; Genoa U.; Seoul U.; Minnesota U.; U. Debrecen, Inst. Phys.; CERN; Inst. Scintill. Mat., Kharkiv; Delhi U.; Rockefeller U.; Helsinki U.; Catania U.; Bristol U.; Moscow, INR; DESY; Rio de Janeiro State U.; INFN, Perugia; Trieste U.; Novosibirsk State U.; Zurich, ETH; Basilicata U., Potenza; Cukurova U.; Istanbul Aydin U.; Brunel U.; Colorado U.; Yerevan Phys. Inst.; Moscow State U.; Haute Alsace U.; St. Petersburg, INP; ABC Federal U.; Bangalore, Indian Inst. Sci.; Florence U.; INFN, Genoa; Rio de Janeiro, CBPF; Taiwan, Natl. Central U.; Kafkas U.; Southampton U.; Split U.; Beijing, Inst. High Energy Phys.; INFN, Padua; INFN, Bari; CC, Villeurbanne; Pisa, Scuola Normale Superiore; Pavia U.; Warsaw U.; Istanbul, Tech. U.; Purdue U.; Tbilisi State U.; Perugia U.; Madrid, Autonoma U.; INFN, Pisa; Texas Tech.; Moscow, MIPT; Cairo U.; Virginia U.; Ohio State U.; MOSTI, Malaysian Nucl. Agency, Kajang; Bari Polytechnic; Hamburg U.; Sungkyunkwan U.; UC, San Diego; Brandenburg Tech. U.; Auckland U.; Cornell U.; Kansas U.; Adiyaman U.; Islamic Azad U., Sci. Res. Branch, Tehran; Vienna, OAW; CINVESTAV, IPN; Florida State U.; Milan Bicocca U.; Saha Inst.; U. Mons; Izmir Inst. Tech.; Utah Valley U.; SUNY, Buffalo; IAC, La Laguna; Andes U., Bogota; Cyprus U.; KIT, Karlsruhe, EKP; Turin U.; Sao Paulo, IFT; INFN, Bologna; Caltech; Nebraska U.; Tennessee U.; Piemonte Orientale U., Novara; Florida Intl. U.; Guglielmo Marconi U.; Bhubaneswar, Inst. Phys.; Hanyang U.; Brussels U.; Marmara U.; Sinop U.; Lappeenranta U. Tech.; Siena U.; Ioannina U.; Puebla U., Inst. Fis.; Louvain U.; INFN, Turin; Madrid, CIEMAT; Antwerp U.; Bhubaneswar, NISER; Gent U.; Alabama U.; IRFU, Saclay; Pelotas U.; Necmettin Erbakan U., Konya; Northwestern U.; Istanbul Bilgi U.; Florida Inst. Tech.; TIFR, Mumbai, DHEP; Riga Tech. U.; INFN, Florence; Maryland U.; Rutgers U., Piscataway; Kharkov, KIPT; Rice U.; INFN, Rome; Warsaw U. of Tech.; Zurich U.; Boston U.; Vanderbilt U.; Frascati; Yazd U.; Bhabha Atomic Res. Ctr.; Illinois U., Chicago; Athens U.; Zewail City Sci. Technol., Giza; Puerto Rico U., Mayaguez; Chulalongkorn U.; Johns Hopkins U.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Debrecen, Inst. Nucl. Res.; Mersin U.; CHEP, Taegu; GTU, Tbilisi; INFN, Catania; Moscow, ITEP; Visva Bharati U.; Sofiya U.; San Francisco de Quito U.; Eotvos U.; INFN, Milan Bicocca; Pisa U.; Malaya U.; Oviedo U.; Texas A&M U. Qatar, Doha; Vilnius U.; TU Vienna; Bogazici U.; Padua U.; INFN, Trieste
- Sponsoring Organization:
- US Department of Energy
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1409380
- Report Number(s):
- CMS-SUS-16-041; CERN-EP-2017-243; FERMILAB-PUB-17-539-CMS; oai:inspirehep.net:1632447; arXiv:1710.09154
- Journal Information:
- JHEP, Journal Name: JHEP Vol. 02
- Country of Publication:
- United States
- Language:
- English
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