Quasi-real Compton scattering measurement

G. R. Bonneaud, A. Courau, R. Johnson, H. Yamamoto, W. B. Atwood, B. C. Barish, G. J. Donaldson, R. Dubois, M. M. Duro, E. E. Elsen, S. Q. Gao, Y. Z. Huang, G. M. Irwin, H. Kichimi, J. Kirkby, D. E. Klem, D. E. Koop, J. Ludwig, G. B. Mills, A. OgawaT. Pal, R. Pitthan, D. L. Pollard, C. Y. Prescott, L. S. Rochester, W. Ruckstuhl, M. Sakuda, S. Sherman, R. Stroynowski, S. Q. Wang, S. G. Wojcicki, W. G. Yan, C. C. Young

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6 Citations (Scopus)


A measurement is reported on the elastic scattering of quasi-real photons generated by one beam with the particles of the other in e+e- interactions at s = 29 GeV performed using the DELCO detector at PEP. The events are characterized by coplanar and anti-tagged e γ pairs with large visible energy where the charge of the electron is correlated with the acolinearity angle. Also, this result is used to search for the on-shell production of a hypothetical excited electron e*. It is found that the data agree well with the predictions for the QED Compton process, and upper limits are set on the e*e γ coupling parameter λ to be below 10-2 (95% CL) in the range 15 ≲ Me * ≲ 27 GeV.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalPhysics Letters B
Issue number1
Publication statusPublished - Sept 4 1986
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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