Abstract
The reaction e+e-→μ+μ- has been studied with the PLUTO detector at the c.m. energy of 34.7 GeV, based on an integrated luminosity of 46 pb-1. The total cross section agrees with QED predictions, and the corresponding lower limits for the Λ+ and Λ- QED cutoff parameters are 267 and 126 GeV respectively (95% c.l.). A forward-backward asymmetry parameter A=-(13.4±3.1±<1)% is observed, which is in agreement with the standard model, as well as with other PETRA results obtained at the same energy.
Original language | English |
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Pages (from-to) | 53-57 |
Number of pages | 5 |
Journal | European Physical Journal C |
Volume | 21 |
Issue number | 1 |
DOIs | |
State | Published - Mar 1983 |