Precision measurement of the W boson mass using the full CDF Run II data set
- Athens U.
The mass of the W boson, a mediator of the weak force between elementary particles, is tightly constrained by the symmetries of the standard model of particle physics. After the observation of the Higgs boson, the last missing component of the model, the measurement of the W boson mass provides a stringent test of the model. A measurement of the W boson mass is presented, which used data corresponding to 8.8 fb$$^{-1}$$ of integrated luminosity, collected in proton-antiproton collisions at a 1.96 TeV center-of-mass energy with the CDF II detector at the Fermilab Tevatron collider. A sample of approximately 4 million W boson candidates was used to obtain a Wboson mass of 80433.5±6.4$$_{stat}$$ ±6.9$$_{syst}$$ = 80433.5±9.4 MeV, the precision of which exceeds that of all previous measurements combined. This measurement is in significant tension with the standard model expectation.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CDF
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1915434
- Report Number(s):
- FERMILAB-CONF-22-957-V; oai:inspirehep.net:2606342
- Journal Information:
- Journal of Physics. Conference Series, Vol. 2375, Issue 1; Conference: Journal of Physics Conference Series; ISSN 1742-6588
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English