Home > Research > Publications & Outputs > Measurement of the Effective Weak Mixing Angle ...

Electronic data

  • PhysRevLett.120.241802

    Final published version, 277 KB, PDF document

    Available under license: CC BY: Creative Commons Attribution 4.0 International License


Text available via DOI:

View graph of relations

Measurement of the Effective Weak Mixing Angle in ppbar → Z/γ∗ → ℓ+ ℓ− Events

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • D0 Collaboration
Article number241802
<mark>Journal publication date</mark>13/06/2018
<mark>Journal</mark>Physical review letters
Number of pages8
Publication StatusPublished
<mark>Original language</mark>English


We present a measurement of the effective weak mixing angle parameter sin2θℓeff, in pp¯→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 sin2θℓeff[μμ]=0.23016±0.00064 is further combined with the result from the D0 measurement in pp¯→Z/γ∗→e+e− events, resulting in sin2θℓeff[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.