Περίληψη:
The OMEGA spectrometer, equipped with a hydrogen target and two
electromagnetic calorimeters, was used to investigate the production of
soft gammas in hadronic collisions. The E(gamma) and P(T) distributions
of the measured gamma’s are compared with the corresponding
distributions of gamma’s arising from hadronic decays and of gamma’s
expected from QED inner bremsstrahlung. An excess of gammas by a factor
of 7.9 +/- 1.4 over the QED prediction is measured in the low energy
(0.2 < E(gamma) < 1.0 GeV) and low P(T) (< 10 MeV/c) kinematic region,
and confirms the original observation of a similar effect in a bubble
chamber experiment.
Συγγραφείς:
BANERJEE, S
BARBERIS, D
BELOGIANNI, A
BEUSCH, W and
BRODBECK, TJ
FRENCH, BR
GOLDSCHMIDTCLERMONT, Y
GRABOWSKI, M
and KERRES, U
KNUDSON, K
MORRIS, JAG
PEREPELITSA, V and
QUERCIGH, E
SONDEREGGER, P
SPYROPOULOUSTASSINAKI, M and
SUBRAMANIAN, A
VASSILIADIS, G
VICHOU, I
WEIGEND, A and
WILSON, GW
