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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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v75_n4_p1_ATLASCollaboration http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
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paper:paper_14346044_v75_n4_p1_ATLASCollaboration |
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paper:paper_14346044_v75_n4_p1_ATLASCollaboration2023-06-08T16:15:02Z 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 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. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v75_n4_p1_ATLASCollaboration http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
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. |
| title |
Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector |
| spellingShingle |
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 |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v75_n4_p1_ATLASCollaboration http://hdl.handle.net/20.500.12110/paper_14346044_v75_n4_p1_ATLASCollaboration |
| _version_ |
1768544241813815296 |