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Search for leptophobic Z' bosons decaying into four-lepton final states in proton-proton collisions at $\sqrt{s} = 8$ TeV


Abstract

A search for heavy narrow resonances decaying into four-lepton final states has been performed using proton–proton collision data at $\sqrt{s} = 8$ TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7 $fb^{−1}$. No excess of events over the standard model background expectation is observed. Upper limits for a benchmark model on the product of cross section and branching fraction for the production of these heavy narrow resonances are presented. The limit excludes leptophobic Z′ bosons with masses below 2.5TeV within the benchmark model. This is the first result to constrain a leptophobic Z′ resonance in the four-lepton channel.

Abstract

A search for heavy narrow resonances decaying into four-lepton final states has been performed using proton–proton collision data at $\sqrt{s} = 8$ TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7 $fb^{−1}$. No excess of events over the standard model background expectation is observed. Upper limits for a benchmark model on the product of cross section and branching fraction for the production of these heavy narrow resonances are presented. The limit excludes leptophobic Z′ bosons with masses below 2.5TeV within the benchmark model. This is the first result to constrain a leptophobic Z′ resonance in the four-lepton channel.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:15 Dec 2017 14:03
Last Modified:18 Dec 2017 15:56
Publisher:Elsevier
ISSN:0370-2693
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2017.08.069

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