SIMULATION OF THE ABNORMAL BIRTH OF SOFT PHOTONS ON THE NUCLOTRON
Abstract
The first results of simulation of an electromagnetic calorimeter for registration of soft photons on the Nuclotron beam with the energy of 3.5 GeV on the basis of Geant4 and UrQMD packages are discussed in the paper. The theoretical assumption is made on the relation between Bose – Einstein condensate and abnormal soft photon production on the basis of the SVD-2 data (Joint Institute for Nuclear Research, Dubna, Russian Federation). This is an actual task for heavy nucleus collisions.
About the Authors
G. S. POKATASHKINBelarus
E. S. KOKOULINA
Russian Federation
R. G. SHULYAKOVSKY
Belarus
References
1. Observation of direct soft photon production in K+p interactions at 70 GeV/c / P. V. Chliapnikov [et al.] // Phys. Lett. B. - 1984.- Vol. 141. - P. 56–59.
2. Further analysis of a direct soft photon excess in π - p interactions at 280 GeV/c / A. Belogianni [et al.]; WA91 Collaboration // Phys. Lett. B. – 2002. – Vol. 548. – P. 122–128.
3. Perepelitsa, V. F. Anomalous Soft Photons in Hadronic Decays of Z0 / V. F. Perepelitsa // Nonl. Phenom. Compl. Syst. - 2009. - Vol. 12, N 4. - P. 334-337.4. Evidence for an excess of soft photons in hadronic decays of Z0 / J. Abdallah [et al.]; DELPHI Collaboration // Eur. Phys. J. C. – 2006. – Vol. 47. – P. 273–294.
4. Shuryak, E. V. The “soft photon puzzles” and pion modification in hadronic matter / E. V. Shuryak // Phys. Lett. B. 231. – 1989. – P. 175–177.
5. Wong Cheuk-Yin. Anomalous soft photons in hadron production / Wong Cheuk-Yin // Phys. Rev. Lett. C. – 2010. – Vol. 81. – P. 064903.
6. Lichard, P. The cold quark-gluon plasma as a source of very soft photons in high energy collisions / P. Lichard, L. Van Hove // Phys. Lett. B. – 1990. – Vol. 245. – P. 605–608.
7. Рядовиков, В. Н. Топологические сечения в рр-взаимодействиях при 50 ГэВ / В. Н. Рядовиков // Ядерная физика. – 2012. – Вып. 75, № 3. – C. 343–348.
8. Kokoulina, E. Soft photon registration at Nuclotron / E. Kokoulina // Proc. Sci. – 2015. – Vol: SISSA. – P. 1–5.