ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The reactione + 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 theΛ + andΛ − QED cutoff parameters are 267 and 126 GeV respectively (95% c.l.). A forward-backward asymmetry parameterA=−(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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01648775