Measurement of the W-boson mass in pp collisions at √s=7TeV with the ATLAS detector

Atlas Collaboration

研究成果: Contribution to journalArticle査読

88 被引用数 (Scopus)

抄録

A measurement of the mass of the W boson is presented based on proton–proton collision data recorded in 2011 at a centre-of-mass energy of 7 TeV with the ATLAS detector at the LHC, and corresponding to 4.6fb-1 of integrated luminosity. The selected data sample consists of 7.8 × 10 6 candidates in the W→ μν channel and 5.9 × 10 6 candidates in the W→ eν channel. The W-boson mass is obtained from template fits to the reconstructed distributions of the charged lepton transverse momentum and of the W boson transverse mass in the electron and muon decay channels, yielding (Formula presented.) where the first uncertainty is statistical, the second corresponds to the experimental systematic uncertainty, and the third to the physics-modelling systematic uncertainty. A measurement of the mass difference between the W+ and W- bosons yields mW+-mW-=-29±28 MeV.

本文言語英語
論文番号110
ジャーナルEuropean Physical Journal C
78
2
DOI
出版ステータス出版済み - 2 1 2018

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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