Angular analysis of the muon pair asymmetry at LEP I.

UNSPECIFIED (2001) Angular analysis of the muon pair asymmetry at LEP I. Physics Letters B, 516 (1-2). pp. 1-20.

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Abstract

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.

Item Type:

Journal Article

Journal or Publication Title:

Physics Letters B

Additional Information:

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

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/3100/3106

Subjects:

?? nuclear and high energy physicsqc physics ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

2315

Deposited By:

ep_importer

Deposited On:

02 Apr 2008 14:05