About the rapidity and helicity distributions of the W bosons produced at LHC

Abstract

$W$ bosons are produced at LHC from a forward-backward symmetric initial state. Their decay to a charged lepton and a neutrino has a strong spin analysing power. The combination of these effects results in characteristic distributions of the pseudorapidity of the leptons decaying from $W^{+}$ and $W^{-}$ of different helicity. This observation may open the possibility to measure precisely the $W^{+}$ and $W^{-}$ rapidity distributions for the two transverse polarisation states of $W$ bosons produced at small transverse momentum.

8 pages, 5 figures

References in corpus (3)

• An Introduction to PYTHIA 8.2
• Measurement of the electron charge asymmetry in inclusive W production in pp collisions at sqrt(s) = 7 TeV
• A new analysis technique to measure the W Production Charge Asymmetry at the Tevatron

Cited by in corpus (5)

• Measurements of the W boson rapidity, helicity, double-differential cross sections, and charge asymmetry in pp collisions at $\sqrt{s}=$ 13 TeV
• Polarised W+j production at the LHC: a study at NNLO QCD accuracy
• Determination of the $W$-boson mass at hadron colliders
• Understanding and constraining the PDF uncertainties in a W boson mass measurement with forward muons at the LHC
• High-precision measurement of the W boson mass with the CMS experiment