LHC Seminar

# Measurement of the W-boson rapidity, helicity, and differential cross sections at CMS

## by Marc Dünser (CERN)

Europe/Zurich
40/S2-A01 - Salle Anderson (CERN)

### 40/S2-A01 - Salle Anderson

#### CERN

100
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Description

The differential cross section and charge asymmetry for inclusive W boson production at $\sqrt{s}$ = 13 TeV is measured for the two transverse polarization states as a function of the W boson absolute rapidity. The measurement uses events in which a W boson decays to either an electron or a muon and a neutrino. The data sample of proton-proton collisions recorded with the CMS detector at the LHC in 2016 corresponds to an integrated luminosity of 35.9 $\mathrm{fb}^{-1}$.  The absolute differential cross section, and its value normalized to the total inclusive W boson production cross section, are measured over the rapidity range $\vert Y_\mathrm{W}\vert<2.5$. In addition, the W boson double-differential cross section, $d^2\sigma/dp_{T}^{\ell} d\vert\eta^\ell\vert$, and the charge asymmetry, are measured as a function of the charged lepton transverse momentum and pseudorapidity.

Organized by

M. Mangano, M. Pepe-Altarelli, G. Unal.......... Refreshments will be served at 10h30

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