Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12875
Title: Search for W? resonances in proton-proton collisions at vs=13 TeV using hadronic decays of Lorentz-boosted W bosons
Authors: Tumasyan, A.
CMS Collaboration
Keywords: CMS
Wgamma resonances
BSM particles
Symmetry-Breaking
Higgs Bosons
Search
Issue Date: 2022
Publisher: Elsevier
Abstract: A search for W gamma resonances in the mass range between 0.7 and 6.0 TeV is presented. The W boson is reconstructed via its hadronic decays, with the final-state products forming a single large-radius jet, owing to a high Lorentz boost of the W boson. The search is based on proton-proton collision data at root s = 13 TeV, corresponding to an integrated luminosity of 137 fb(-1), collected with the CMS detector at the LHC in 2016-2018. The W gamma mass spectrum is parameterized with a smoothly falling background function and examined for the presence of resonance-like signals. No significant excess above the predicted background is observed. Model-specific upper limits at 95% confidence level on the product of the cross section and branching fraction to the W gamma channel are set. Limits for narrow resonances and for resonances with an intrinsic width equal to 5% of their mass, for spin-0 and spin-1 hypotheses, range between 0.17 fb at 6.0 TeV and 55 fb at 0.7 TeV. These are the most restrictive limits to date on the existence of such resonances over a large range of probed masses. In specific heavy scalar (vector) triplet benchmark models, narrow resonances with masses between 0.75 (1.15) and 1.40 (1.36) TeV are excluded for a range of model parameters. Model-independent limits on the product of the cross section, signal acceptance, and branching fraction to the W gamma channel are set for minimum W gamma mass thresholds between 1.5 and 8.0 TeV. (c) 2022 The Author(s). Published by Elsevier B.V.
URI: https://doi.org/10.1016/j.physletb.2022.136888
https://hdl.handle.net/11147/12875
ISSN: 0370-2693
1873-2445
Appears in Collections:Rectorate / Rektörlük
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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