Secondary Decay and the Statistical Multifragmentation Model
Abstract
Statistical multifragmentation models are widely used to interpret multifragmentation processes. While the secondary decay of highly excited particle unstable nuclei plays an important role in such multifragment processes, it is not clear whether the approximations employed by statistical models to describe the excitation and decay of such nuclei are sufficiently accurate. We have explored these issues by comparing the approximations employed by the Statistical Multifragmentation Model (SMM) (J. P. Bondorf, et al., Phys. Rep. 257 (1995) 133.) to secondary decay calculations that take the known nuclear structure effects that influence decay branching ratios into account. Significant differences are observed and will be discussed; some of these can be attributed to the inclusion of Fermi breakup processes within the SMM while others can be attributed to various approximations employed by the sequential decay stage within the SMM. New density dependent observables have been constructed from the isotopic yields and their properties will be discussed.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 1998
- Bibcode:
- 1998APS..APR.H1505T