Search for W′ bosons decaying to a top and a bottom quark in leptonic final states in proton-proton collisions at √𝑠 = 13 TeV
Author(s)
Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P. S.; Jeitler, M.; Krammer, N.; Liko, D.; Mikulec, I.; Schieck, J.; Schöfbeck, R.; Schwarz, D.; ... Show more Show less
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A search for W′ bosons decaying to a top and a bottom quark in final states including an electron or a muon is performed with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 138 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV. Good agreement with the standard model expectation is observed and no evidence for the existence of the W′ boson is found over the mass range examined. The largest observed deviation from the standard model expectation is found for a W′ boson mass (
m
W
′
$$ {m}_{{\textrm{W}}^{\prime }} $$
) hypothesis of 3.8 TeV with a relative decay width of 1%, with a local (global) significance of 2.6 (2.0) standard deviations. Upper limits on the production cross sections of W′ bosons decaying to a top and a bottom quark are set. Left- and right-handed W′ bosons with
m
W
′
$$ {m}_{{\textrm{W}}^{\prime }} $$
below 3.9 and 4.3 TeV, respectively, are excluded at the 95% confidence level, under the assumption that the new particle has a narrow decay width. Limits are also set for relative decay widths up to 30%.
Date issued
2024-05-06Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
The CMS collaboration., Hayrapetyan, A., Tumasyan, A. et al. Search for W′ bosons decaying to a top and a bottom quark in leptonic final states in proton-proton collisions at 𝑠√ = 13 TeV. J. High Energ. Phys. 2024, 46 (2024).
Version: Final published version
ISSN
1029-8479