Search for $W' \to t\bar{b}$ 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 - INSPIRE

DataBETA

Search for $W' \to t\bar{b}$ 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

ATLAS

Collaboration

Oct 15, 2014

21 pages

Published in:

Phys.Lett.B 743 (2015) 235-255

Published: Apr 9, 2015

e-Print:

1410.4103 [hep-ex]

DOI:

10.1016/j.physletb.2015.02.051

PDG: Mass Limits for

{{\mathit W}^{\,'}}

(Heavy Charged Vector Boson Other Than

{{\mathit W}}

) in Hadron Collider Experiments

Report number:

CERN-PH-EP-2014-232

Experiments:

CERN-LHC-ATLAS

View in:

reference search84 citations

Citations per year

Abstract: (Elsevier)

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 CLs procedure. For a left-handed (right-handed) W′ boson, masses below 1.70 (1.92) TeV are excluded at 95% confidence level.

Note:

12 pages plus author list + cover pages (27 pages total), 6 figures, 3 tables, submitted to Physics Letters B, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2012-19/

p p: scattering
gauge boson: massive
W': search for
W': coupling
W': mass: lower limit
W': hadronic decay
coupling: right-handed
coupling: left-handed
channel cross section: branching ratio: upper limit
lepton: final state

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