학술논문

Precise QCD predictions for W-boson production in association with a charm jet.
Document Type
Article
Source
European Physical Journal C -- Particles & Fields. Apr2024, Vol. 84 Issue 4, p1-20. 20p.
Subject
*QUANTUM chromodynamics
*QUARKS
*BOSONS
*FORECASTING
*PROTONS
*PARTONS
*ELECTROWEAK interactions
Language
ISSN
1434-6044
Abstract
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. [ABSTRACT FROM AUTHOR]