Author(s)

Reza Hashemi-Nezhad¹, Reinhard Brandt², Valery Ditlov³, Maria Haiduc⁴, Elena Firu⁴, Alina Tania Neagu⁴, Eberhard Ganssauge⁵, Wolfram Westmeier⁶

¹School of Physics, University of Sydney, Sydney, Australia.
²Kernchemie, FB Chemie, Philipps Universität Marburg, Marburg, Germany.
³Institute of Theoretical and Experimental Physics, Moscow, Russia.
⁴Bucharest Institute of Space Science, Bucharest, Romania.
⁵FB Physik, Philipps Universität Marburg, Marburg, Germany.
⁶Dr. Westmeier GmbH, Ebsdorfergrund, Germany.

Aspects of BURSTS and Spallation reactions induced by high-energy heavy ions in thick targets (>10 cm thick) will be investigated: BURSTS are reviewed from a historical and phenomenological point-of-view. Details of interactions in nuclear emulsions will be compared for irradiations of 72 GeV ²²Ne-ions from Dubna with irradiations of 72 GeV ⁴⁰Ar-ions from Berkeley. Measured correlations in individual interactions between multiplicities of “minimum ionizing particles”, n_s, and “black prongs”, nb, will be shown as “n_s-vs.-n_b” per event for BURSTS and separately for Spallation in interactions of 72 GeV 22Ne-ions. Monte Carlo calculations, based on the MCNPX 2.7 code, have been carried out for 72 GeV 22Ne interacting in nuclear emulsions: The correlation between ns and nb in Spallation reactions could be understood. However, “n_s-vs.-n_b” correlations from BURST-interactions could not be reproduced with this model for events with small numbers of heavy prongs n_h ≤ 10. For large numbers of heavy prongs with n_h > 10 one could find some agreement between experiments and calculations, however, not in all details. Further experimental and theoretical studies are necessary before one has a complete understanding of BURST interactions in high-energy heavy ion reactions.

High-Energy HI Reaction, BURST, Spallation, MCNPX

Hashemi-Nezhad, R. , Brandt, R. , Ditlov, V. , Haiduc, M. , Firu, E. , Neagu, A. , Ganssauge, E. and Westmeier, W. (2017) Further Studies of BURSTS and Spallation in High-Energy Heavy Ion Reactions. World Journal of Nuclear Science and Technology, 7, 35-57. doi: 10.4236/wjnst.2017.71004.