Measurement of associated production of a W boson and a charm quark in proton–proton collisions at [radical]s=13TeV
Name
Sirunyan2019_Article_MeasurementOfAssociatedProduct.pdf
Size
971.22 KB
Format
Adobe PDF
Checksum (MD5)
778a6bc9ab2a033275e89d4c57709c69
Author(s)
Abercrombie
Date Issued
March 2019
Journal
The European Physical Journal C
Publisher
Springer Science and Business Media LLC
Citation
Sirunyan, A.M., Tumasyan, A., Adam, W. et al. Measurement of associated production of a W boson and a charm quark in proton–proton collisions at 𝑠√=13TeV. Eur. Phys. J. C 79, 269 (2019). © CERN for the benefit of the CMS collaboration 2019
Version
Final published version
Abstract
Measurements are presented of associated production of a W boson and a charm quark (W+c) in proton–proton collisions at a center-of-mass energy of 13TeV. The data correspond to an integrated luminosity of 35.7fb−1 collected by the CMS experiment at the CERN LHC. The W bosons are identified by their decay into a muon and a neutrino. The charm quarks are tagged via the full reconstruction of D∗(2010)± mesons that decay via D*(2010)±→D[superscript 0]+𝜋±→K∓+𝜋±+𝜋±. A cross section is measured in the fiducial region defined by the muon transverse momentum 𝑝𝜇T>26GeV, muon pseudorapidity |𝜂[superscript 𝜇]|<2.4, and charm quark transverse momentum 𝑝[superscript c][subscript T]>5GeV. The inclusive cross section for this kinematic range is 𝜎(W+c)=1026±31(stat)[superscript +76][subscript −72](syst) pb. The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. These measurements are compared with theoretical predictions and are used to probe the strange quark content of the proton.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-019-6752-1
