Artículos de revistas
Search for Narrow Resonances in the b-Tagged Dijet Mass Spectrum in Proton-Proton Collisions at root s=8 TeV
Fecha
2018-05-14Registro en:
Physical Review Letters. College Pk: Amer Physical Soc, v. 120, n. 20, 19 p., 2018.
0031-9007
10.1103/PhysRevLett.120.201801
WOS:000432992600002
WOS000432992600002.pdf
Autor
Yerevan Phys Inst
Inst Hochenergiephys
Inst Nucl Problems
Univ Antwerp
Vrije Univ Brussel
Univ Libre Bruxelles
Univ Ghent
Catholic Univ Louvain
Ctr Brasileiro Pesquisas Fis
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Bulgarian Acad Sci
Univ Sofia
Beihang Univ
Inst High Energy Phys
Peking Univ
Tsinghua Univ
Univ Los Andes
Univ Split
Inst Rudjer Boskovic
Univ Cyprus
Charles Univ Prague
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Acad Sci Res & Technol Arab Republ Egypt
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Institución
Resumen
A search for narrow resonances decaying to bottom quark-antiquark pairs is presented, using a data sample of proton-proton collisions at root s = 8 TeV corresponding to an integrated luminosity of 19.7 fb(-1). The search is extended to masses lower than those reached in typical searches for resonances decaying into jet pairs at the LHC, by taking advantage of triggers that identify jets originating from bottom quarks. No significant excess of events is observed above the background predictions. Limits are set on the product of cross section and branching fraction to bottom quarks for spin 0, 1, and 2 resonances in the mass range of 325-1200 GeV. These results improve on the limits for resonances decaying into jet pairs in the 325-500 GeV mass range.