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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/260876
Title: Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV
Authors: Drugakov, V.
Mossolov, V.
Suarez Gonzalez, J.
CMS Collaboration
Keywords: ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика
Issue Date: 2019
Publisher: American Physical Society
Citation: Phy Rev D 2019;100(11).
Abstract: 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.
URI: https://elib.bsu.by/handle/123456789/260876
Scopus: 10.1103/PhysRevD.100.112007
metadata.dc.identifier.scopus: 0-85077391071
Sponsorship: Horizon 2020 Framework Programme (H2020),675440,752730,765710; Science and Technology Facilities Council (STFC),ST/N000242/1
Appears in Collections:Статьи НИУ «Институт ядерных проблем»

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