https://doi.org/10.1140/epjc/s10052-024-12715-8
Regular Article - Theoretical Physics
Precise QCD predictions for W-boson production in association with a charm jet
1
Institute for Theoretical Physics, ETH, 8093, Zurich, Switzerland
2
Department of Physics, University of Zürich, 8057, Zurich, Switzerland
3
Institute for Particle Physics Phenomenology, Durham University, DH1 3LE, Durham, UK
4
Department of Physics, Durham University, DH1 3LE, Durham, UK
5
Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
6
Università degli Studi di Milano-Bicocca and INFN, Piazza della Scienza 3, 20126, Milan, Italy
f
giovanni.stagnitto@unimib.it
Received:
5
December
2023
Accepted:
24
March
2024
Published online:
4
April
2024
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.
© The Author(s) 2024
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