Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector
A search for a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb −1 of integrated luminosity. This analysis is done in the hadron...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
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todo:paper_14346044_v75_n4_p1_ATLASCollaboration2023-10-03T16:15:04Z Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector ATLAS Collaboration A search for a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb −1 of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W′ bosons in the range 1.5-3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95%confidence level are set on the W′ → tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W′ bosons, and ranging from 0.10 pb to 0.21 pb for W′ bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W′-boson coupling to tb as a function of the W′ mass using an effective field theory approach, which is independent of details of particular models predicting a W′ boson. © 2015, CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
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Universidad de Buenos Aires |
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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 a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb −1 of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W′ bosons in the range 1.5-3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95%confidence level are set on the W′ → tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W′ bosons, and ranging from 0.10 pb to 0.21 pb for W′ bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W′-boson coupling to tb as a function of the W′ mass using an effective field theory approach, which is independent of details of particular models predicting a W′ boson. © 2015, CERN for the benefit of the ATLAS collaboration. |
| format |
JOUR |
| author |
ATLAS Collaboration |
| spellingShingle |
ATLAS Collaboration Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| author_facet |
ATLAS Collaboration |
| author_sort |
ATLAS Collaboration |
| title |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_short |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_fullStr |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full_unstemmed |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_sort |
search for w’→tb→qq bb decays in pp collisions at √s = 8 tev with the atlas detector |
| url |
http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
| work_keys_str_mv |
AT atlascollaboration searchforwtbqqbbdecaysinppcollisionsats8tevwiththeatlasdetector |
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1807320340944125952 |