An investigation of the processes e+e-→μ+μ-γ and e+e-→e+e-γ

H. J. Behrend*, J. Bürger, L. Criegee, H. Fenner, J. H. Field, G. Franke, J. Meyer, V. Schröder, H. Sindt, U. Timm, G. G. Winter, W. Zimmermann, P. J. Bussey, A. J. Campbell, J. B. Dainton, D. Hendry, G. McCurrach, J. M. Scarr, I. O. Skillicorn, K. M. SmithV. Blobel, M. Poppe, H. Spitzer, W. D. Apel, J. Engler, G. Flügge, D. C. Fries, W. Fues, K. Gamerdinger, P. Grosse-Wiesmann, J. Hansmeyer, Th Henkes, G. Hopp, H. Jung, J. Knapp, M. Krüger, H. Küster, H. Müller, K. H. Ranitzsch, H. Schneider, W. De Boer, G. Buschhorn, W. Christiansen, B. Fatah, G. Grindhammer, B. Gunderson, Ch Kiesling, R. Kotthaus, H. Kroha, D. Lüers, H. Oberlack, P. Schacht, B. Scharlemann, G. Shooshtari, W. Wiedenmann, A. Cordier, M. Davier, D. Fournier, M. Gaillard, J. F. Grivaz, J. Haissinski, V. Journé, F. Le Diberder, E. Ros, A. Spadafora, J. J. Veillet, R. George, M. Goldberg, O. Hamon, F. Kapusta, F. Kovacs, R. Pain, L. Poggioli, M. Rivoal, G. D'Agostini, M. Gaspero, B. Stella, R. Aleksan, G. Cozzika, Y. Ducros, P. Jarry, Y. Lavagne, F. Ould Saada, J. Pamela, F. Pierre, G. Alexander, G. Bella, Y. Gnat, J. Grunhaus

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The reactions e+e-→μ+μ-γ and e+e-→e+e-γ have been studied with the CELLO detector at the PETRA storage ring. Data have been collected from s=14 GeV up to46.8GeV. In a Dalitz plot analysis of the data, good agreement is found with QED, except for the region Mxμγe>0.8 where the probability that QED describes the high energy data is at the percent level.

Original languageEnglish
Pages (from-to)536-542
Number of pages7
JournalPhysics Letters B
Volume158
Issue number6
DOIs
StatePublished - 5 Sep 1985

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