Precise QCD predictions for W-boson production in association with a charm jet

The production of a W -boson with a charm quark jet provides a highly sensitive probe of the strange quark distribution in the proton. Employing a novel flavour dressing procedure to define charm quark jets, we compute W +charm-jet production up to next-to-next-to-leading order (NNLO) in QCD. We stu...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2024-04, Vol.84 (4), p.361-20, Article 361
Main Authors: Ridder, A. Gehrmann-De, Gehrmann, T., Glover, E. W. N., Huss, A., Garcia, A. Rodriguez, Stagnitto, G.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Charm (particle physics)
Elementary Particles
Flavor (particle physics)
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Partons
Physics
Physics and Astronomy
Quantum chromodynamics
Quantum Field Theories
Quantum Field Theory
Quarks
Radiation
Regular - Theoretical Physics
Regular Article - Theoretical Physics
String Theory
Theoretical physics
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Summary:The production of a W -boson with a charm quark jet provides a highly sensitive probe of the strange quark distribution in the proton. Employing a novel flavour dressing procedure to define charm quark jets, we compute W +charm-jet production up to next-to-next-to-leading order (NNLO) in QCD. We study the perturbative stability of production cross sections with same-sign and opposite-sign charge combinations for the W boson and the charm jet. A detailed breakdown according to different partonic initial states allows us to identify particularly suitable observables for the study of the quark parton distributions of different flavours.
ISSN:1434-6044
1434-6052
1434-6052
DOI:10.1140/epjc/s10052-024-12715-8