Search for Wγ resonances in proton-proton collisions at √s = 13 TeV using hadronic decays of Lorentz-boosted W bosons
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...
| Published in: | Physics Letters B Vol. 826. P. 136888 (1-28) |
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| Other Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002359 Перейти в каталог НБ ТГУ |
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| 024 | 7 | |a 10.1016/j.physletb.2022.136888 |2 doi | |
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| 245 | 1 | 0 | |a Search for Wγ resonances in proton-proton collisions at √s = 13 TeV using hadronic decays of Lorentz-boosted W bosons |c A. Tumasyan, W. Adam, J. W. Andrejkovic [et al.] |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 53 назв. | ||
| 520 | 3 | |a 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. | |
| 653 | |a протон-протонные столкновения | ||
| 653 | |a W-бозоны | ||
| 653 | |a гамма-резонанс | ||
| 655 | 4 | |a статьи в журналах |9 886703 | |
| 700 | 1 | |a Tumasyan, Armen |9 510818 | |
| 700 | 1 | |a Adam, Wolfgang |9 510819 | |
| 700 | 1 | |a Andrejkovic, Janik Walter |9 882239 | |
| 700 | 1 | |a Borshch, Vladislav |9 510820 | |
| 700 | 1 | |a Ivanchenko, Vladimir |9 500157 | |
| 700 | 1 | |a Tcherniaev, Evgueni |9 500158 | |
| 773 | 0 | |t Physics Letters B |d 2022 |g Vol. 826. P. 136888 (1-28) |x 0370-2693 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002359 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1002359 | ||
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