Search for $W^{\prime }\to t\bar{b}$ in the lepton plus jets final states with the ATLAS detector at the LHC

Abstract

This document presents a search for a $W^{\prime }$ boson, decaying to a top quark and a $b$ quark in an effective coupling approach, using a multivariate method based on boosted decision trees. It reports exclusion limits on the $W^{\prime }\to tb$ cross-section times branching ratio and effective couplings as a function of the $W^{\prime }$-boson mass. The search covers $W^{\prime }$-boson masses between 0.5 and 3.0 TeV, for right-handed or left-handed $W^{\prime }$-boson, with 20.3 fb${}^{-1}$ of proton-proton collision data produced by the LHC in 2012, at a center-of-mass energy of 8 TeV and collected by the ATLAS detector.

arXiv commentTOP2014, 4 pages, 4 figures

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• TMVA - Toolkit for Multivariate Data Analysis
• Little Higgs Models and Their Phenomenology
• Resonances from Two Universal Extra Dimensions
• Search for $W^{\prime }\to t\bar{b}$ in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV with the ATLAS detector