New results on the reaction e+e-→μ+μ- at s =29 GeV

We have measured the process e+e-→μ+μ- at s =29 GeV using the High Resolution Spectrometer at SLAC PEP. The forward-backward charge asymmetry is Aμμ=-(4.9±1.5±0.5)% based on 5057 events. A subsample of 3488 μ+μ- events in the angular range cosθ<0.55 gives a cross-section ratio of Rμμ=0.990±0....

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Bibliographic Details
Main Authors: Derrick, M, Fernandez, E, Fries, R, Hyman, L, Kooijman, P, Loos, J, Musgrave, B, Price, L, Schlereth, J, Sugano, K, Weiss, J, Wood, D, Ahlen, S, Baranko, G, Baringer, P, Blockus, D, Brabson, B, Daigo, M, Forden, G, Gray, S, Guillaud, J, Jung, C, Neal, H, Ogren, H, Rust, DR
Format: Journal article
Language:English
Published: 1985