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Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s =13 TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; ... mehr

Abstract:

A search for narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in proton-proton collisions at s √ =13
s=13
TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1. The hypothetical resonance is produced with sufficiently high transverse momentum that its decay products are merged into a single jet with two-prong substructure. A signal would be identified as a peak over a smoothly falling background in the distribution of the invariant mass of the jet, using novel jet substructure techniques. No evidence for such a resonance is observed within the mass range of 50-300 GeV. Upper limits at 95% confidence level are set on the production cross section, and presented in a mass-coupling parameter space. The limits further constrain simplified models of dark matter production involving a mediator interacting between quarks and dark matter particles through a vector or axial-vector current. In the framework of these models, the results are the most sensitive to date, extending for the first time the search region to masses below 100 GeV.


Verlagsausgabe §
DOI: 10.5445/IR/1000081649
Veröffentlicht am 09.04.2018
Originalveröffentlichung
DOI: 10.1007/JHEP01(2018)097
Scopus
Zitationen: 74
Web of Science
Zitationen: 36
Dimensions
Zitationen: 54
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik – Institut für Experimentelle Kernphysik (IEKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2018
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
urn:nbn:de:swb:90-816497
KITopen-ID: 1000081649
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2018
Heft 1
Seiten Article: 97
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagwörter Jet substructure; Hadron-Hadron scattering (experiments); Dark matter; Jets
Nachgewiesen in Dimensions
Web of Science
Scopus
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