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 4.6 fb−1 of integrated luminosity. The selected data sample consists of 7.8×106 candidates in the W→μν channel and 5.9×106 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 mW=80370=80370±7 (stat.)±11(exp. syst.)±14 (mod. syst.) MeV±19MeV, 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

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, et al. (2018). Measurement of the W-boson mass in pp collisions at √s=7TeV with the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(2), 1-61 [10.1140/epjc/s10052-017-5475-4].

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

G. L. Alberghi;L. Bellagamba;S. Biondi;D. Boscherini;A. Bruni;G. Bruni;G. D’amen;S. De Castro;F. Fabbri;L. Fabbri;M. Franchini;A. Gabrielli;B. Giacobbe;F. Lasagni Manghi;MASSA, LORENZO;A. Mengarelli;A. Polini;L. Rinaldi;M. Romano;C. Sbarra;N. Semprini-Cesari;M. Sioli;R. Spighi;G. Ucchielli;S. Valentinetti;M. Villa;C. Vittori;I. Vivarelli;A. Zoccoli;
2018

Abstract

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 4.6 fb−1 of integrated luminosity. The selected data sample consists of 7.8×106 candidates in the W→μν channel and 5.9×106 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 mW=80370=80370±7 (stat.)±11(exp. syst.)±14 (mod. syst.) MeV±19MeV, 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
2018
M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, et al. (2018). Measurement of the W-boson mass in pp collisions at √s=7TeV with the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(2), 1-61 [10.1140/epjc/s10052-017-5475-4].
M. Aaboud; G. Aad; B. Abbott; J. Abdallah; O. Abdinov; B. Abeloos; S. H. Abidi; O. S. AbouZeid; N. L. Abraham; H. Abramowicz; H. Abreu; R. Abreu; Y. A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/621549
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