Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Angular analysis of the muon pair asymmetry at LEP I.
AU - Bailey, Ian Richard
AU - Kartvelishvili, Vakhtang
AU - OPAL Collaboration
N1 - The method originated with a co-author but was developed by Kartvelishvili and applied to OPAL data; he did 95% of the analysis and was the main author. This double-differential angular analysis of muon pair production provided an independent way of measuring the fundamental couplings of the Z boson. RAE_import_type : Journal article RAE_uoa_type : Physics
PY - 2001/9/6
Y1 - 2001/9/6
N2 - Data on muon pair production obtained by the OPAL Collaboration at centre of mass energies near the Z peak are analysed. Small angular mismatches between the directions of the two muons are used to assess the effects of initial state photon radiation and initial-final-state radiation interference on the forward–backward asymmetry of muon pairs. The dependence of the asymmetry on the invariant mass of the pair is measured in a model-independent way. Effective vector and axial-vector couplings of the Z boson are determined and compared to the Standard Model expectations.
AB - Data on muon pair production obtained by the OPAL Collaboration at centre of mass energies near the Z peak are analysed. Small angular mismatches between the directions of the two muons are used to assess the effects of initial state photon radiation and initial-final-state radiation interference on the forward–backward asymmetry of muon pairs. The dependence of the asymmetry on the invariant mass of the pair is measured in a model-independent way. Effective vector and axial-vector couplings of the Z boson are determined and compared to the Standard Model expectations.
U2 - 10.1016/S0370-2693(01)00896-6
DO - 10.1016/S0370-2693(01)00896-6
M3 - Journal article
VL - 516
SP - 1
EP - 20
JO - Physics Letters B
JF - Physics Letters B
IS - 1-2
ER -