2000年10月
Direct measurement of the W boson width in p(p)over-bar collisions at root s=1.8 TeV
PHYSICAL REVIEW LETTERS
- 巻
- 85
- 号
- 16
- 開始ページ
- 3347
- 終了ページ
- 3352
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.85.3347
- 出版者・発行元
- AMERICAN PHYSICAL SOC
This Letter describes a direct measurement of the W boson total decay width, Gamma(W), using the Collider Detector at Fermilab. The measurement uses an integrated luminosity of 90 pb-L, collected during the 1994-1995 run of the Fermilab Tevatron pr collider. The width is determined by normalizing predicted signal and background distributions to 49 843 W --> ev candidates and 21 806 W --> mu nu candidates in the transverse-mass region M-T < 200 GeV and then fitting the predicted shape to the 438 electron events and 196 muon events in the high-M-T region, 100 < M-T < 200 GeV. The result is Gamma(W) = 2.04 +/- 0.11(stat) +/- 0.09(syst) GeV.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.85.3347
- ISSN : 0031-9007
- Web of Science ID : WOS:000089865900004