https://doi.org/10.1140/epjc/s10052-024-12532-z
Regular Article - Experimental Physics
Compatibility and combination of world W-boson mass measurements
1
DESY, Hamburg, Germany
2
CEA/IRFU, Gif-sur-Yvette, France
3
University of Edinburgh, Edinburgh, UK
4
Massachusetts Institute of Technology, Cambridge, MA, USA
5
University of Liverpool, Liverpool, UK
6
University College Dublin, Dublin, Ireland
7
University of Oxford, Oxford, UK
8
University of Warwick, Warwick, UK
9
University of Milan, Milan, Italy
10
Johannes Gutenberg University, Mainz, Germany
Received:
18
August
2023
Accepted:
8
February
2024
Published online:
2
May
2024
The compatibility of W-boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all 
measurements yields a value of 
MeV with the CT18 set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is removed. The corresponding value of the W boson mass is 
MeV, which differs by 
from the CDF value determined using the same PDF set.
© The Author(s) 2024
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3.
