2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 12, 369-374
DOI 10.1007/s100529900233

Study of the QED processes $e^+e^-\to e^+e^-\gamma, e^+e^-\gamma\gamma$
with the SND detector at VEPP-2M

M.N. Achasov - S.E. Baru - A.V. Bozhenok - A.D. Bukin - D.A. Bukin - S.V. Burdin - T.V. Dimova - S.I. Dolinsky - V.P. Druzhinin - M.S. Dubrovin - I.A. Gaponenko - V.B. Golubev - V.N. Ivanchenko - A.A. Korol - S.V. Koshuba - A.P. Lysenko - I.N. Nesterenko - E.V. Pakhtusova - S.I. Serednyakov - V.V. Shary - Yu.M. Shatunov - V.A. Sidorov - Z.K. Silagadze - Yu.V. Usov

Budker Institute of Nuclear Physics, Novosibirsk State University, 630090, Novosibirsk, Russia

Received: 20 April / Revised version: 23 August 1999 / Published online: 10 December 1999

Abstract
Results of the SND experiment at the VEPP-2M e+e- collider on the QED processes $e^+e^-\rightarrow e^+e^-\gamma$ and $e^+e^-\rightarrow e^+e^-\gamma\gamma$ with production at large angles are presented. The energy and angular distributions of the final particles were studied. No deviations from QED were found, with an accuracy of 3.8% for the first process and 10.3% for the second.


Copyright Springer-Verlag 2000