Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'506'133
Articles rated: 2609

27 April 2024

» arxiv » nucl-ex/9902007

Article overview

Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV
M. D’Agostino ; A. S. Botvina ; M. Bruno ; A. Bonasera ; J. P. Bondorf ; I. N. Mishustin ; F. Gulminelli ; R. Bougault ; N. Le Neindre ; P. Desesquelles ; E. Geraci ; A. Pagano ; I. Iori ; A. Moroni ; G. V. Margagliotti ; G. Vannini ;
Date:	12 Feb 1999
Journal:	Nucl.Phys. A650 (1999) 329-357
Subject:	nucl-ex
Abstract:	The distribution of fragments produced in events involving the multifragmentation of excited sources is studied for peripheral Au + Au reactions at 35 A.MeV. The Quasi-Projectile has been reconstructed from its de-excitation products. An isotropic emission in its rest frame has been observed, indicating that an equilibrated system has been formed. The excitation energy of the Quasi-Projectile has been determined via calorimetry. A new event by event effective thermometer is proposed based on the energy balance. A peak in the energy fluctuations is observed related to the heat capacity, suggesting that the system undergoes a liquid-gas type phase transition at an excitation energy about 5 A.MeV and a temperature 4 - 6 MeV, dependent on the freeze-out hypothesis. By analyzing different regions of the Campi-plot, the events associated with the liquid and gas phases as well as the critical region are thermodynamically characterized. The critical exponents, tau, beta,gamma, extracted from the high moments of the charge distribution are consistent with a liquid-gas type phase transition.
Source:	arXiv, nucl-ex/9902007
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap