High-precision measurement of the W boson mass with the CDF II detector
Fermilab
DOI:
10.1126/science.abk1781
Publication Date:
2022-04-07T17:55:41Z
AUTHORS (398)
ABSTRACT
The mass of the W boson, a mediator weak force between elementary particles, is tightly constrained by symmetries standard model particle physics. Higgs boson was last missing component model. After observation measurement provides stringent test We measure mass, MW, using data corresponding to 8.8 inverse femtobarns integrated luminosity collected in proton-antiproton collisions at 1.96 tera-electron volt center-of-mass energy with CDF II detector Fermilab Tevatron collider. A sample approximately 4 million candidates used obtain [Formula: see text], precision which exceeds that all previous measurements combined (stat, statistical uncertainty; syst, systematic MeV, mega-electron volts; c, speed light vacuum). This significant tension expectation.
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