CDF Collaboration;
D0 Collaboration;
Aaltonen, T;
Abazov, VM;
Abbott, B;
Acharya, BS;
Adams, M;
... Zucchelli, S; + view all
(2018)
Tevatron Run II combination of the effective leptonic electroweak mixing angle.
Physical Review D
, 97
(11)
, Article 112007. 10.1103/PhysRevD.97.112007.
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Abstract
Drell-Yan lepton pairs produced in the process p ¯ p → ℓ + ℓ − + X through an intermediate γ ∗ / Z boson have an asymmetry in their angular distribution related to the spontaneous symmetry breaking of the electroweak force and the associated mixing of its neutral gauge bosons. The CDF and D0 experiments have measured the effective-leptonic electroweak mixing parameter sin 2 θ lept eff using electron and muon pairs selected from the full Tevatron proton-antiproton data sets collected in 2001-2011, corresponding to 9 – 10 fb − 1 of integrated luminosity. The combination of these measurements yields the most precise result from hadron colliders, sin 2 θ lept eff = 0.23148 ± 0.00033 . This result is consistent with, and approaches in precision, the best measurements from electron-positron colliders. The standard model inference of the on-shell electroweak mixing parameter sin 2 θ W , or equivalently the W -boson mass M W , using the zfitter software package yields sin 2 θ W = 0.22324 ± 0.00033 or equivalently, M W = 80.367 ± 0.017 GeV / c 2 .
| Type: | Article |
|---|---|
| Title: | Tevatron Run II combination of the effective leptonic electroweak mixing angle |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.97.112007 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevD.97.112007 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10051305 |
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