Search for Low Mass Vector Resonances Decaying into Quark-Antiquark Pairs in Proton-Proton Collisions at √s = 13  TeV
Physical Review D 2019
Viesturs Veckalns, et al 1500

A search for low mass narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in 2017 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 41.1 fb-1. The results of this analysis are combined with those of an earlier analysis based on data collected at the same collision energy in 2016, corresponding to 35.9 fb-1. Signal candidates will be recoiling against initial state radiation and are identified as energetic, large-radius jets with two pronged substructure. The invariant jet mass spectrum is probed for a potential narrow peaking signal over a smoothly falling background. No evidence for such resonances is observed within the mass range of 50-450 GeV. Upper limits at the 95% confidence level are set on the coupling of narrow resonances to quarks, as a function of the resonance mass. For masses between 50 and 300 GeV these are the most sensitive limits to date. This analysis extends the earlier search to a mass range of 300-450 GeV, which is probed for the first time with jet substructure techniques.


DOI
10.1103/PhysRevD.100.112007
Hipersaite
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.112007

Veckalns, V., 1500, e. Search for Low Mass Vector Resonances Decaying into Quark-Antiquark Pairs in Proton-Proton Collisions at √s = 13  TeV. Physical Review D, 2019, Vol. 100, No. 11, 1.-10.lpp. ISSN 2470-0010. e-ISSN 2470-0029. Pieejams: doi:10.1103/PhysRevD.100.112007

Publikācijas valoda
English (en)
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