Search for Low-Mass Resonances Decaying into Bottom Quark-Antiquark Pairs in Proton-Proton Collisions at √s = 13  TeV
Physical Review D 2019
Viesturs Veckalns, et al 100

A search for narrow, low-mass, scalar, and pseudoscalar resonances decaying to bottom quark-antiquark pairs is presented. The search is based on events recorded in s=13 TeV proton-proton collisions with the CMS detector at the LHC, collected in 2016, and corresponding to an integrated luminosity of 35.9 fb-1. The search selects events in which the resonance would be produced with high transverse momentum because of the presence of initial- or final-state radiation. In such events, the decay products of the resonance would be reconstructed as a single large-radius jet with high mass and two-prong substructure. A potential signal would be identified as a narrow excess in the jet invariant mass spectrum. No evidence for such a resonance is observed within the mass range from 50 to 350 GeV, and upper limits at 95% confidence level are set on the product of the cross section and branching fraction to a bottom quark-antiquark pair. These constitute the first constraints from the LHC on exotic bottom quark-antiquark resonances with masses below 325 GeV.


DOI
10.1103/PhysRevD.99.012005
Hyperlink
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.012005

Veckalns, V., 100, e. Search for Low-Mass Resonances Decaying into Bottom Quark-Antiquark Pairs in Proton-Proton Collisions at √s = 13  TeV. Physical Review D, 2019, Vol. 99, No. 1, pp.1-10. ISSN 2470-0010. e-ISSN 2470-0029. Available from: doi:10.1103/PhysRevD.99.012005

Publication language
English (en)
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