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

• Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Md. Ali, Mohd. Adli
• Format: Article
• Language: English; English; English
• Published: American Physical Society 2017
• Subjects: Q Science (General); QC Physics
• Online Access: http://irep.iium.edu.my/63081/1/63081_Search%20for%20Low%20Mass%20Vector%20Resonances_article.pdf; http://irep.iium.edu.my/63081/2/63081_Search%20for%20Low%20Mass%20Vector%20Resonances_scopus.pdf; http://irep.iium.edu.my/63081/13/63081_Search%20for%20Low%20Mass%20Vector%20Resonances_wos.pdf; http://irep.iium.edu.my/63081/; https://journals-aps-org.ezlib.iium.edu.my/prl/pdf/10.1103/PhysRevLett.119.111802

A search is reported for a narrow vector resonance decaying to quark-antiquark pairs in proton-proton collisions at ffiffi s p ¼ 13 TeV, collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.7 fb−1. The vector resonance is produced at large transverse momenta, with its decay products merged into a single jet. The resulting signature is a peak over background in the distribution of the invariant mass of the jet. The results are interpreted in the framework of a leptophobic vector resonance and no evidence is found for such particles in the mass range of 100–300 GeV. Upper limits at 95% confidence level on the production cross section are presented in a region of mass-coupling phase space previously unexplored at the LHC. The region below 140 GeV has not been explored by any previous experiments.