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Measurement of cumulative-photon spectra at high transverse momenta in 12C9Be interactions at an energy of 3.2 GeV per nucleon

Authors :
V. S. Goryachev
G. B. Sharkov
V. L. Stolin
I. E. Korolko
A. I. Golutvin
A. V. Stavinsky
G. B. Dzubenko
S. M. Kiselev
A. G. Dolgolenko
G.A. Leksin
B.V. Zagreev
P. A. Polozov
D. N. Svirida
V. E. Vishnyakov
I. G. Alekseev
K. R. Mikhaylov
M. S. Prokudin
Source :
Physics of Atomic Nuclei. 71:1848-1859
Publication Year :
2008
Publisher :
Pleiades Publishing Ltd, 2008.

Abstract

For 12C9Be interactions at a kinetic beam energy of 3.2 GeV per nucleon, the spectra of photons at laboratory angles in the range 55°–73° were measured off the kinematical region available to the interaction of single nucleons within colliding nuclei. The use of a fast trigger for selecting events involving the production of high-transverse-momentum photons made it possible to measure spectra off the kinematical boundary of four-nucleon interaction. It is shown that the proposed procedure is adequate to the problem of searches for and investigation of flucton-flucton interaction. In the kinematical region where flucton-flucton interaction can manifest itself, the cross sections in question are on the same order of magnitude as respective model predictions. In order to draw definitive conclusions on the role of flucton-flucton interaction, it is highly desirable to extend the angular range of the measurements toward smaller angles.

Details

ISSN :
1562692X and 10637788
Volume :
71
Database :
OpenAIRE
Journal :
Physics of Atomic Nuclei
Accession number :
edsair.doi...........1f8afc6c677d40a0fdd450a455e363d1
Full Text :
https://doi.org/10.1134/s1063778808110033