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Title
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Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at =13 Tev
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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PHYSICAL REVIEW D
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Publication
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2019
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DOI
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10.1103/PHYSREVD.100.112007
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Volume/pages
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100
:11
(2019)
, 24 p.
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Article Reference
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112007
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ISI
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000503811700002
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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