Compact Muon Solenoid
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| CMS-PAS-SMP-18-012 | ||
| Measurement of the W boson rapidity, helicity, and differential cross sections in pp collisions at $\sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| February 2020 | ||
| Abstract: 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 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 $| Y_{\mathrm{W}} | < $ 2.5. In addition, the W boson double-differential cross section, $\mathrm{d}^2\sigma/\mathrm{d}p_{\mathrm{T}}^{\ell} \mathrm{d}|\eta^{\ell}|$, and the charge asymmetry, are measured as a function of the charged lepton transverse momentum and pseudorapidity. The precision of these measurements is used to constrain the parton density functions (PDF) of the proton using the next-to-leading-order PDF set NNPDF3.0. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PRD 102 (2020) 092012. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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