• Rapid Communication

Two characteristic volumes in thermal nuclear multifragmentation

V. A. Karnaukhov, H. Oeschler, S. P. Avdeyev, V. K. Rodionov, V. V. Kirakosyan, A. V. Simonenko, P. A. Rukoyatkin, A. Budzanowski, W. Karcz, I. Skwirczyńska, E. A. Kuzmin, L. V. Chulkov, E. Norbeck, and A. S. Botvina
Phys. Rev. C 70, 041601(R) – Published 25 October 2004

Abstract

The paper is devoted to the experimental determination of the space-time characteristics for the target multifragmentation in p(8.1GeV)+Au collisions. The experimental data on the fragment charge distribution and kinetic energy spectra are analyzed within the framework of the statistical multifragmentation model. It is found that the partition of hot nuclei is specified after expansion of the target spectator to a volume equal to Vt=(2.9±0.2)Vo, with Vo as the volume at normal density. However, the freezeout volume is found to be Vf=(11±3)Vo. At freezeout, all the fragments are well separated and only the Coulomb force should be taken into account. The results are in accordance with a scenario of spinodal disintegration of hot nuclei.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 June 2004

DOI:https://doi.org/10.1103/PhysRevC.70.041601

©2004 American Physical Society

Authors & Affiliations

V. A. Karnaukhov1,*, H. Oeschler2, S. P. Avdeyev1, V. K. Rodionov1, V. V. Kirakosyan1, A. V. Simonenko1, P. A. Rukoyatkin1, A. Budzanowski3, W. Karcz3, I. Skwirczyńska3, E. A. Kuzmin4, L. V. Chulkov4, E. Norbeck5, and A. S. Botvina6

  • 1Joint Institute for Nuclear Research, 141980 Dubna, Russia
  • 2Institut für Kernphysik, Darmstadt University of Technology, 64289 Darmstadt, Germany
  • 3H. Niewodniczanski Institute of Nuclear Physics, 31-342 Cracow, Poland
  • 4Kurchatov Institute, 123182 Moscow, Russia
  • 5University of Iowa, Iowa City, Iowa 52242, USA
  • 6Institute for Nuclear Research, 117312 Moscow, Russia

  • *Email address: karna@nusun.jinr.ru

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 70, Iss. 4 — October 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×