Electronic Resource
Springer
The European physical journal
67 (1995), S. 577-583
ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A precise measurement of the spectrum of the photons fromep bremsstrahlung with the ZEUS luminosity monitor at HERA is reported. The measurement shows a reduced rate compared to the Bethe-Heitler spectrum for photon energies below 5 GeV. This suppression, called the beam-size effect, is explained by the finite transverse size of the beam overlap relative to the typical impact parameter in the process ofep bremsstrahlung at HERA energies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01553983
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