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Title: Measurement of the Effective Weak Mixing Angle in p p ¯ Z / γ * + Events

Journal Article · · Physical Review Letters
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Here, we present a measurement of the effective weak mixing angle parameter sin2θeff in $$p\bar{p}$$ → 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 sin2θeff[μμ] = 0.23016 ± 0.00064 is further combined with the result from the D0 measurement in $$p\bar{p}$$ → Z/γ* → e+e events, resulting in sin2θeff[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.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
The D0 Collaboration
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1454359
Alternate ID(s):
OSTI ID: 1409352
Report Number(s):
FERMILAB-PUB-17-434-E; arXiv:1710.03951; PRLTAO; 241802
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Vol. 120 Journal Issue: 24; ISSN 0031-9007
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Cited By (3)

Measurement of the Effective Weak Mixing Angle in p¯p→Z/γ∗→ℓ+ℓ− Events text January 2018
Measurement of the Effective Weak Mixing Angle in $p\bar{p}\rightarrow Z/\gamma^* \rightarrow \ell^+\ell^-$ Events text January 2018
Measurement of the weak mixing angle using the forward–backward asymmetry of Drell–Yan events in $$\mathrm {p}\mathrm {p}$$ p p collisions at 8 $$\,\text {TeV}$$ TeV journal September 2018

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