ATLAS, Collaboration; Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Kabana, Sonja; Marti, Lukas; Meloni, Federico; Pretzl, Klaus-Peter; Schneider, Basil; Stramaglia, Maria Elena; Stucci, Stefania; Weber, Michael (2015). Search for W ′ →tb ¯ 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. Physics letters. B, 743, pp. 235-255. Elsevier 10.1016/j.physletb.2015.02.051
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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= 8 TeV, using a dataset corresponding to an integrated luminosity of 20.3 fb⁻¹. This analysis searches for W ′ bosons in the W ′ →tb ¯ decay 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 3.0 TeV, for right-handed or left-handed W ′ bosons. No significant deviation from the Standard Model expectation is observed and limits are set on the W ′ →tb ¯ cross-section times branching ratio and on the W ′ -boson effective couplings as a function of the W ′-boson mass using the CL s procedure. For a left-handed (right-handed) W ′ boson, masses below 1.70 (1.92) TeV are excluded at 95% confidence level.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Agustoni, Marco, Beck, Hans Peter, Cervelli, Alberto, Ereditato, Antonio, Haug, Sigve, Marti, Lukas, Meloni, Federico, Pretzl, Klaus-Peter, Schneider, Basil, Stramaglia, Maria Elena, Stucci, Stefania, Weber, Michele |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0370-2693 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
12 Sep 2016 11:41 |
Last Modified: |
05 Dec 2022 14:58 |
Publisher DOI: |
10.1016/j.physletb.2015.02.051 |
ArXiv ID: |
1410.4103 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt |
BORIS DOI: |
10.7892/boris.87684 |
URI: |
https://boris.unibe.ch/id/eprint/87684 |
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