Search for W′ → tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector
A search for W ′ -boson production in the W ′ →tb¯→qq¯ ′ bb¯ decay channel is presented using 36.1fb −1 of 13 TeV proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The search is interpreted in terms of both a left-handed and a right-handed ch...
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03702693_v781_n_p327_Aaboud |
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| Sumario: | A search for W ′ -boson production in the W ′ →tb¯→qq¯ ′ bb¯ decay channel is presented using 36.1fb −1 of 13 TeV proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The search is interpreted in terms of both a left-handed and a right-handed chiral W ′ boson within the mass range 1–5 TeV. Identification of the hadronically decaying top quark is performed using jet substructure tagging techniques based on a shower deconstruction algorithm. No significant deviation from the Standard Model prediction is observed and the results are expressed as upper limits on the W ′ →tb¯ production cross-section times branching ratio as a function of the W ′ -boson mass. These limits exclude W ′ bosons with right-handed couplings with masses below 3.0 TeV and W ′ bosons with left-handed couplings with masses below 2.9 TeV, at the 95% confidence level. © 2018 The Author |
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