Artículos de revistas
Searches for R-parity-violating supersymmetry in pp collisions at root s=8 TeV in final states with 0-4 leptons
Fecha
2016-12-29Registro en:
Physical Review D. College Pk: Amer Physical Soc, v. 94, n. 11, 43 p., 2016.
2470-0010
10.1103/PhysRevD.94.112009
WOS:000391016600002
WOS000391016600002.pdf
Autor
Yerevan Phys Inst
Inst Hochenergiephys OeAW
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
Univ Libre Bruxelles
Univ Ghent
Catholic Univ Louvain
Univ Mons
Ctr Brasileiro Pesquisas Fis
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Inst Nucl Energy Res
Univ Sofia
Beihang Univ
Inst High Energy Phys
Peking Univ
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Rudjer Boskovic Inst
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Institución
Resumen
Results are presented from searches for R-parity-violating supersymmetry in events produced in pp collisions at root s = 8 TeV at the LHC. Final states with 0, 1, 2, or multiple leptons are considered independently. The analysis is performed on data collected by the CMS experiment corresponding to an integrated luminosity of 19.5 fb(-1). No excesses of events above the standard model expectations are observed, and 95% confidence level limits are set on supersymmetric particle masses and production cross sections. The results are interpreted in models featuring R-parity-violating decays of the lightest supersymmetric particle, which in the studied scenarios can be either the gluino, a bottom squark, or a neutralino. In a gluino pair production model with baryon number violation, gluinos with a mass less than 0.98 and 1.03 TeV are excluded, by analyses in a fully hadronic and one-lepton final state, respectively. An analysis in a dilepton final state is used to exclude bottom squarks with masses less than 307 GeV in a model considering bottom squark pair production. Multilepton final states are considered in the context of either strong or electroweak production of superpartners and are used to set limits on the masses of the lightest supersymmetric particles. These limits range from 300 to 900 GeV in models with leptonic and up to approximately 700 GeV in models with semileptonic R-parity-violating couplings.