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arXiv · 1707.09344

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

Elisabetta Manca·Olmo Cerri·Nicolo Foppiani·Gigi Rolandi
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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.

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Elisabetta Manca, Olmo Cerri, Nicolo Foppiani, Gigi Rolandi. 2017-12-14. About the rapidity and helicity distributions of the W bosons produced at LHC. https://doi.org/10.1007/jhep12(2017)130

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