2024-03-28T10:28:58Z
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oai:tsukuba.repo.nii.ac.jp:00053905
2022-07-18T23:52:33Z
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117:5006
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3:62:5598:84
Search for a heavy charged boson in events with a charged lepton and missing transverse momentum from pp collisions at √s=13??TeV with the ATLAS detector
原, 和彦
ハラ, カズヒコ
HARA, Kazuhiko
大川, 英希
オオカワ, ヒデキ
OKAWA, Hideki
佐藤, 構二
サトウ, コウジ
SATO, Koji
受川, 史彦
ウケガワ, フミヒコ
UKEGAWA, Fumihiko
ATLA Collaboration
A search for a heavy charged-boson resonance decaying into a charged lepton (electron or muon) and a neutrino is reported. A data sample of 139??fb?1 of proton-proton collisions at √s=13??TeV collected with the ATLAS detector at the LHC during 2015?2018 is used in the search. The observed transverse mass distribution computed from the lepton and missing transverse momenta is consistent with the distribution expected from the Standard Model, and upper limits on the cross section for pp→W′→?ν are extracted (?=e or μ). These vary between 1.3 pb and 0.05 fb depending on the resonance mass in the range between 0.15 and 7.0 TeV at 95% confidence level for the electron and muon channels combined. Gauge bosons with a mass below 6.0 and 5.1 TeV are excluded in the electron and muon channels, respectively, in a model with a resonance that has couplings to fermions identical to those of the Standard Model W boson. Cross-section limits are also provided for resonances with several fixed Γ/m values in the range between 1% and 15%. Model-independent limits are derived in single-bin signal regions defined by a varying minimum transverse mass threshold. The resulting visible cross-section upper limits range between 4.6 (15) pb and 22 (22) ab as the threshold increases from 130 (110) GeV to 5.1 (5.1) TeV in the electron (muon) channel.
journal article
American Physical Society
2019-09
application/pdf
Physical review D
5
100
052013
2470-0010
AA00773624
https://tsukuba.repo.nii.ac.jp/record/53905/files/PRD_100-5-052013.pdf
eng
https://doi.org/10.1103/PhysRevD.100.052013
c 2019 CERN, for the ATLAS Collaboration
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
open access