What question did this study set out to answer?

Determine the mass of the W boson with high precision using the CDF II detector to test the consistency of the Standard Model.

High-precision measurement of the W boson mass with the CDF II detector

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Determine the mass of the W boson with high precision using the CDF II detector to test the consistency of the Standard Model.
Analyzed particle collision data acquired with the CDF II detector.
Reconstructed decay kinematic distributions to extract the precise invariant mass of the W boson.
Yielded a high-precision measurement of the W boson mass.
Demonstrated significant tension between the experimentally measured mass and the theoretical expectation of the Standard Model.

Collider experiment reveals high-precision measurement of the W boson mass, indicating significant tension with Standard Model expectations.

, speed of light in a vacuum). This measurement is in significant tension with the standard model expectation.

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Aaltonen et al. (2022) studied this question.

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Collider experiment reveals high-precision measurement of the W boson mass, indicating significant tension with Standard Model expectations.

, speed of light in a vacuum). This measurement is in significant tension with the standard model expectation.