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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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Abstract
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.
Date issued
2012-04
URI
http://hdl.handle.net/1721.1/71623
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
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
Version: Final published version
ISSN
0031-9007
1079-7114

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