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Abstract: Many new physics models, including versions of supersymmetry characterized by R-parity violation (RPV), compressed mass spectra, long decay chains, or additional hidden sectors, predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results of a search for new physics in events with two top quarks and additional jets are reported. The search is performed using events with at least seven jets and exactly one electron or muon. No requirement on miffiffisffi sing transverse momentum is imposed. The study is based on a sample of proton-proton collisions at ps ¼ 13TeV corresponding to 137 fb?1 of integrated luminosity collected with the CMS detector at the LHC in 2016?2018. The data are used to determine best fit values and upper limits on the cross section for pair production of top squarks in scenarios of RPVand stealth supersymmetry. Top squark masses up to 670 ð870Þ GeV are excluded at 95% confidence level for the RPV (stealth) scenario, and the maximum observed local signal significance is 2.8 standard deviations for the RPV scenario with top squark mass of 400 GeV.
Fuente: Phys. Rev. D 104, 032006 (2021)
Publisher: American Physical Society
Publication date: 20/08/2021
No. of pages: 26
Publication type: Article
DOI: 10.1103/PhysRevD.104.032006
ISSN: 1550-7998,1550-2368,2470-0010,2470-0029
Publication Url: https://doi.org/10.1103/PhysRevD.104.032006
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UCrea Repository Read publication
SIRUNYAN, A. M.
JAVIER ANDRES BROCHERO CIFUENTES
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
CELIA FERNANDEZ MADRAZO
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
GERVASIO GOMEZ GRAMUGLIO
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
FRANCESCA SHUN-NING ANNAROSA RICCI-TAM
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
JESUS MANUEL VIZAN GARCIA
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