Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV

Details Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV

1999-02-12

arxiv.org/abs/nucl-ex/9902007v1

Nucl.Phys. A650 (1999) 329-357

Physics

Nuclear Physics

Nuclear Experiment

44 pages, 16 Postscript figures, Fig14_nucl-ex.eps in colors, to be published in Nucl.Phys.A (1999)

Scientific paper

10.1016/S0375-9474(99)00097-4

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.

Affiliated with

Also associated with

No associations

Rating

Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-228282