Abazov, VM;
Abbott, B;
Acharya, BS;
Adams, M;
Adams, T;
Agnew, JP;
Alexeev, GD;
... Zivkovic, L; + view all
(2018)
Measurement of the Effective Weak Mixing Angle in p(p)over-bar -> Z/gamma* -> l(+) l(-) Events.
Physical Review Letters
, 120
, Article 241802. 10.1103/PhysRevLett.120.241802.
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Abstract
We present a measurement of the effective weak mixing angle parameter sin 2 θ ℓ eff in p ¯ p → Z / γ ∗ → μ + μ − events at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron Collider and corresponding to 8.6 fb − 1 of integrated luminosity. The measured value of sin 2 θ ℓ eff [ μ μ ] = 0.23016 ± 0.00064 is further combined with the result from the D0 measurement in p ¯ p → Z / γ ∗ → e + e − events, resulting in sin 2 θ ℓ eff [ comb ] = 0.23095 ± 0.00040 . This combined result is the most precise measurement from a single experiment at a hadron collider and is the most precise determination using the coupling of the Z / γ ∗ to light quarks.
| Type: | Article |
|---|---|
| Title: | Measurement of the Effective Weak Mixing Angle in p(p)over-bar -> Z/gamma* -> l(+) l(-) Events |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.120.241802 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.120.241802 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, DETECTOR |
| 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-pp.ucl.ac.uk/id/eprint/10052705 |
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