@article{60bf4dbe9d3e4e0bbd4edb1dfd71761e,
title = "Quasi-real Compton scattering measurement",
abstract = "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.",
author = "Bonneaud, {G. R.} and A. Courau and R. Johnson and H. Yamamoto and Atwood, {W. B.} and Barish, {B. C.} and Donaldson, {G. J.} and R. Dubois and Duro, {M. M.} and Elsen, {E. E.} and Gao, {S. Q.} and Huang, {Y. Z.} and Irwin, {G. M.} and H. Kichimi and J. Kirkby and Klem, {D. E.} and Koop, {D. E.} and J. Ludwig and Mills, {G. B.} and A. Ogawa and T. Pal and R. Pitthan and Pollard, {D. L.} and Prescott, {C. Y.} and Rochester, {L. S.} and W. Ruckstuhl and M. Sakuda and S. Sherman and R. Stroynowski and Wang, {S. Q.} and Wojcicki, {S. G.} and Yan, {W. G.} and Young, {C. C.}",
note = "Funding Information: In e+e - collisions, a quasi-real photon emitted by one of the incoming particles can be elastically scattered by the other (fig. 1). The spectator electron, which radiates the photon, tends to be emitted at a very small angle relative to the beam axis and escape detection, while the scattered e'}, pair may be detected ~:' This work was supported in part by the Department of Energy, contract numbers DE-ACO3-76SF00515an d DE-AC03-81-ER40050, and the National Science Foundation. 1 Present address: Laboratoire de l'Accddrateur Lin6aire, L.A.L. - Orsay, BRt. 200, F-91405 Orsay, France. 2 Present address: CERN, EP-division, CH-1211 Geneva 23, Switzerland. 3 Present address: Watkins-Jobnson Co., 2525 North 1st Street, San Jose, CA 95131-1097, USA. 4 Present address: University of Victoria, Department of Physics, PO Box 1700, Victoria, B.C., Canada V8W 2Y2. s Present address: DESY, F-22, Notkestrasse 85, D-2000 Hamburg 52, Fed. Rep. Germany. 6 Present address: Institute of High Energy Physics, PO Box 918, Beijing, The People's Republic of China.",
year = "1986",
month = sep,
day = "4",
doi = "10.1016/0370-2693(86)90025-0",
language = "English",
volume = "177",
pages = "109--114",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1",
}