A study of 197Au+197Au collisions at 15 MeV/nucleon with the CHIMERA multidetector

Skwira Chalot, I.; Siwek Wilczynska, K.; Wilczynski, J.; Amorini, F.; Anzalone, A.; Auditore, Lucrezia; Baran, V.; Brzychczyk, J.; Cardella, G.; Cavallaro, S.; Chatterjee, M. B.; Colonna, M.; De Filippo, E.; Di Toro, M.; Gawlikowicz, W.; Grzeszczuk, A.; Guazzoni, P.; Kowalski, S.; La Guidara, E.; Lanzanò, G.; Lanzalone, G.; Maiolino, C.; Majka, Z.; Nicolis, N. G.; Pagano, A.; Papa, M.; Piasecki, E.; Pirrone, S.; Planeta, R.; Politi, Giuseppe; Porto, F.; Rizzo, Francesca; Russotto, P.; Schmidt, K.; Sochoka, A.; Swiderski, L.; Trifirò, A.; Trimarchi, M.; Wieleczko, J. P.; Zetta, L.; Zipper, W.

Following theoretical predictions regarding dynamics of very heavy systems, 197Au + 197Au collisions at an energy of 15 MeV/Nucleon were studied in order to observe a transition from one-body dissipation mechanism that dominates for cold nuclear matter to two-body dissipation. The experiment was carried out in 4pi geometry using the CHIMERA multi-detector array. A class of ternary events satisfying nearly complete balance of mass numbers and balance of the transversal momentum was selected. Preliminary results show that ternary partitions of the heavy Au + Au system predominantly lead to formation of three fragments of comparable masses. In the light of theoretical predictions of Carjan, Sierk and Nix this result implies tha t the observed ternary reactions are driven by the two-body dissipation mechanism already at 15 MeV/ nucleon.

Titolo:	A study of 197Au+197Au collisions at 15 MeV/nucleon with the CHIMERA multidetector
Autori interni:	I. Skwira Chalot K. Siwek Wilczynska J. Wilczynski F. Amorini A. Anzalone AUDITORE, LUCREZIA V. Baran J. Brzychczyk G. Cardella S. Cavallaro M. B. Chatterjee M. Colonna E. De Filippo M. Di Toro W. Gawlikowicz A. Grzeszczuk P. Guazzoni S. Kowalski E. La Guidara G. Lanzanò G. Lanzalone C. Maiolino Z. Majka N. G. Nicolis A. Pagano M. Papa E. Piasecki S. Pirrone R. Planeta POLITI, Giuseppe F. Porto RIZZO, Francesca P. Russotto K. Schmidt A. Sochoka L. Swiderski A. Trifirò M. Trimarchi J. P. Wieleczko L. Zetta W. Zipper mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2006
Handle:	http://hdl.handle.net/20.500.11769/74891
ISBN:	9788874380299
Appare nelle tipologie:	4.1 Contributo in Atti di convegno

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http://hdl.handle.net/20.500.11769/74891

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