Measurement of associated production of a W boson and a charm quark in proton-proton collisions at s = 13 Te .
Eur Phys J C Part Fields
; 79(3): 269, 2019.
Article
en En
| MEDLINE
| ID: mdl-30971865
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 13 Te . The data correspond to an integrated luminosity of 35.7 fb - 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 ) ± â D 0 + π ± â K ∓ + π ± + π ± . A cross section is measured in the fiducial region defined by the muon transverse momentum p T µ > 26 Ge , muon pseudorapidity | η µ | < 2.4 , and charm quark transverse momentum p T c > 5 Ge . The inclusive cross section for this kinematic range is σ ( W + c ) = 1026 ± 31 (stat) + 76 - 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.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Risk_factors_studies
Idioma:
En
Revista:
Eur Phys J C Part Fields
Año:
2019
Tipo del documento:
Article
País de afiliación:
Armenia
Pais de publicación:
FR
/
FRANCE
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FRANCIA
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FRANÇA