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Isotopic dependence of the caloric curve

W. Trautmann ; P. Adrich ; T. Aumann ; C. O. Bacri ; T. Barczyk ; R. Bassini ; S. Bianchin ; C. Boiano ; A. S. Botvina ; A. Boudard ; J. Brzychczyk ; A. Chbihi ; J. Cibor ; B. Czech ; M. De Napoli ; J. E. Ducret ; H. Emling ; J. D. Frankland ; M. Hellstrom ; D. Henzlova ; G. Imme ; I. Iori ; Håkan T. Johansson (Extern ; Institutionen för fundamental fysik, Subatomär fysik) ; K. Kezzar ; A. Lafriakh ; A. Le Fevre ; E. Le Gentil ; Y. Leifels ; J. Luhning ; J. Lukasik ; W. G. Lynch ; U. Lynen ; Z. Majka ; M. Mocko ; W. F. J. Muller ; A. Mykulyak ; H. Orth ; A. N. Otte ; R. Palit ; P. Pawlowski ; A. Pullia ; G. Raciti ; E. Rapisarda ; H. Sann ; C. Schwarz ; C. Sfienti ; H. Simon ; K. Summerer ; M. B. Tsang ; G. Verde ; C. Volant ; M. Wallace ; H. Weick ; J. Wiechula ; A. Wieloch ; B. Zwieglinski
Progress in Particle and Nuclear Physics, Vol 62, No 2 (0146-6410). Vol. 62 (2009), 2, p. 407-412.
[Artikel, refereegranskad vetenskaplig]

Isotopic effects in projectile fragmentation at relativistic energies have been studied with the ALADIN forward spectrometer at SIS. Stable and radioactive Sn and La beams with an incident energy of 600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. Chemical freeze-out temperatures are found to be nearly invariant with respect to the A/Z ratio of the produced spectator sources, consistent with predictions for expanded systems. Consequences for the proposed interpretation of chemical breakup temperatures as representing the limiting temperatures predicted by microscopic models are discussed. (C) 2009 Elsevier B.V. All rights reserved.

Nyckelord: isotope temperature, isotopic effects, limiting temperature, microscopic models, multifragmentation, nuclear caloric curve, projectile fragmentation, radioactive beams, gas phase-transition, hot nuclei, coulomb instability, temperature, emission



Denna post skapades 2009-12-14. Senast ändrad 2015-03-30.
CPL Pubid: 103546

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Tungjonsfysik

Chalmers infrastruktur