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=8 TeV, using a dataset corresponding to an integrated luminosity of 20.3 fb −1 . This analysis searches for W ′ bosons in the W ′ →...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p235_Aad |
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todo:paper_03702693_v743_n_p235_Aad2023-10-03T15:29:38Z 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 Aad, G. 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. © 2015 JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p235_Aad |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
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. © 2015 |
| format |
JOUR |
| author |
Aad, G. |
| spellingShingle |
Aad, G. 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 |
| author_facet |
Aad, G. |
| author_sort |
Aad, G. |
| title |
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 |
| title_short |
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 |
| title_full |
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 |
| title_fullStr |
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 |
| title_full_unstemmed |
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 |
| title_sort |
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 |
| url |
http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p235_Aad |
| work_keys_str_mv |
AT aadg searchforwtbintheleptonplusjetsfinalstateinprotonprotoncollisionsatacentreofmassenergyofs8tevwiththeatlasdetector |
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1807317707399364608 |