Search for W'->t¯b in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of √s=8 TeV with the ATLAS detector
A search for new charged massive gauge bosons, called W, is performed with the ATLAS detector at the LHC, in proton-proton collisions at a centre-of-mass energy of √s=8TeV, using a dataset corresponding to an integrated luminosity of 20.3fb−1. This analysis searches for Wbosons in the W→t¯bdecay cha...
| Published in: | Physics Letters B Vol. 743. P. 235-255 |
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| Corporate Author: | |
| Other Authors: | , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000526121 Перейти в каталог НБ ТГУ |
| Summary: | A search for new charged massive gauge bosons, called W, is performed with the ATLAS detector at the LHC, in proton-proton collisions at a centre-of-mass energy of √s=8TeV, using a dataset corresponding to an integrated luminosity of 20.3fb−1. This analysis searches for Wbosons in the W→t¯bdecay channel in final states with electrons or muons, using a multivariate method based on boosted decision trees. The search covers masses between 0.5 and 3.0TeV, for right-handed or left-handed Wbosons. No significant deviation from the Standard Model expectation is observed and limits are set on the W→t¯bcross-section times branching ratio and on the W-boson effective couplings as a function of the W-boson mass using the CLsprocedure. For a left-handed (right-handed) Wboson, masses below 1.70 (1.92)TeVare excluded at 95% confidence level. |
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| Bibliography: | Библиогр.: 82 назв. |
| ISSN: | 0370-2693 |