Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at √s = 8 TeV

the CMS Collaboration, Jim Brooke, Emyr Clement, David Cussans, Henning Flaecher, Robert Frazier, Joel Goldstein, Mark Grimes, Greg Heath, Luke Kreczko, Chris Lucas, Zhaoxia Meng, David Newbold, Sudarshan Paramesvaran, Sergey Senkin, Vincent Smith

Research output: Contribution to journalArticle (Academic Journal)

78 Citations (Scopus)

Abstract

A search for new resonances decaying to WW, ZZ, or WZ is presented. Final states are considered in which one of the vector bosons decays leptonically and the other hadronically. Results are based on data corresponding to an integrated luminosity of 19.7 fb−1 recorded in proton-proton collisions at s√s = 8 TeV with the CMS detector at the CERN LHC. Techniques aiming at identifying jet substructures are used to analyze signal events in which the hadronization products from the decay of highly boosted W or Z bosons are contained within a single reconstructed jet. Upper limits on the production of generic WW, ZZ, or WZ resonances are set as a function of the resonance mass and width. We increase the sensitivity of the analysis by statistically combining the results of this search with a complementary study of the all-hadronic final state. Upper limits at 95% confidence level are set on the bulk graviton production cross section in the range from 700 to 10 fb for resonance masses between 600 and 2500 GeV, respectively. These limits on the bulk graviton model are the most stringent to date in the diboson final state.
Original languageEnglish
Article number174
Number of pages59
JournalJournal of High Energy Physics
VolumeAugust 2014
Issue number8
DOIs
Publication statusPublished - 29 Aug 2014

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  • Projects

    GridPP Hardware Allocation 2013

    Flaecher, H. U.

    1/01/141/04/14

    Project: Research

    Consolidated Grant 2012-16

    Newbold, D. M. & Rademacker, J. H.

    1/10/121/10/16

    Project: Research

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