A search is reported for a narrow vector resonance decaying to quark-antiquark pairs in proton-proton collisions at root s = 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.

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2017). Search for Low Mass Vector Resonances Decaying to Quark-Antiquark Pairs in Proton-Proton Collisions at s =13 TeV. PHYSICAL REVIEW LETTERS, 119(11) [10.1103/PhysRevLett.119.111802].

Search for Low Mass Vector Resonances Decaying to Quark-Antiquark Pairs in Proton-Proton Collisions at s =13 TeV

Brianza L.;Brivio F.;Ciriolo V.;Dinardo M. E.;Fiorendi S.;Ghezzi A.;Govoni P.;Malberti M.;Manzoni R. A.;Paganoni M.;Pauwels K.;Pigazzini S.;Ragazzi S.;Tabarelli De Fatis T.;Lucchini M. T.;Massironi A.;De Guio F.;
2017

Abstract

A search is reported for a narrow vector resonance decaying to quark-antiquark pairs in proton-proton collisions at root s = 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.
Articolo in rivista - Articolo scientifico
proton-proton collision
English
2017
119
11
111802
none
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2017). Search for Low Mass Vector Resonances Decaying to Quark-Antiquark Pairs in Proton-Proton Collisions at s =13 TeV. PHYSICAL REVIEW LETTERS, 119(11) [10.1103/PhysRevLett.119.111802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/187596
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