https://doi.org/10.1140/epjc/s10052-023-12128-z
Letter
Determination of the W-boson mass at hadron colliders
1
Physik Institut, Universität Zürich, 8057, Zurich, Switzerland
2
Dipartimento di Fisica, Università di Torino and INFN, Sezione di Torino, 10125, Turin, Italy
3
Dipartimento di Fisica, Università di Milano and INFN, Sezione di Milano, 20133, Milan, Italy
Received:
31
August
2023
Accepted:
9
October
2023
Published online:
21
October
2023
We introduce an observable relevant for the determination of the W-boson mass 
at hadron colliders. This observable is defined as an asymmetry around the jacobian peak of the charged-lepton transverse-momentum distribution in the charged-current Drell–Yan process. We discuss the observable’s theoretical prediction, presenting results at different orders in QCD, and showing its perturbative stability. Its definition as a single scalar number and its linear sensitivity to allow a clean extraction of the latter and a straightforward discussion of the associated theoretical systematics: a perturbative QCD uncertainty of 
MeV on can be established by means of this observable, relying solely on charged-current Drell–Yan information. Owing to its relatively inclusive nature, the observable displays desirable properties also from the experimental viewpoint, especially for the unfolding of detector effects. We show that a measurement of this observable can lead to a competitive experimental error on at the LHC.
© The Author(s) 2023
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