Precise Measurement of the W-Boson Mass with the CDF II Detector
Author(s)Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
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We have measured the W-boson mass M[superscript W] using data corresponding to 2.2 fb[superscript -1] of integrated luminosity collected in pp̅ collisions at √s=1.96 TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470 126 W→eν candidates and 624 708 W→μν candidates yield the measurement M[superscript W]=80 387±12[subscript stat.]±15[subscript syst.]=80 387±19 MeV/c[superscript 2]. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Physical Review Letters
American Physical Society
T. Aaltonen et al. (CDF Collaboration). "Precise Measurement of the W-Boson Mass with the CDF II Detector" Physical Review Letters 108, 151803 (2012). © 2012 American Physical Society
Final published version