Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions

Details Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions

2010-07-27

arxiv.org/abs/1007.4738v1

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 5 figures

Scientific paper

Isotope yields have been analyzed within the framework of a Modified Fisher Model to study the power law yield distribution of isotopes in the multifragmentation regime. Using the ratio of the mass dependent symmetry energy coefficient relative to the temperature, $a_{sym}/T$, extracted in previous work and that of the pairing term, $a_{p}/T$, extracted from this work, and assuming that both reflect secondary decay processes, the experimentally observed isotope yields have been corrected for these effects. For a given I = N - Z value, the corrected yields of isotopes relative to the yield of $^{12}C$ show a power law distribution, $Y(N,Z)/Y(^{12}C) \sim A^{-\tau}$, in the mass range of $1 \le A \le 30$ and the distributions are almost identical for the different reactions studied. The observed power law distributions change systematically when I of the isotopes changes and the extracted $\tau$ value decreases from 3.9 to 1.0 as I increases from -1 to 3. These observations are well reproduced by a simple de-excitation model, which the power law distribution of the primary isotopes is determined to $\tau^{prim} = 2.4 \pm 0.2$, suggesting that the disassembling system at the time of the fragment formation is indeed at or very near the critical point.

Affiliated with

Also associated with

No associations

Rating

Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions 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 Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical behavior of the isotope yield distributions in the Multifragmentation Regime of Heavy Ion Reactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-321207