Nuclear temperature measurement for central collisions
Abstract
Nuclear temperatures from double isotope yield ratios and excited state populations were measured for central ^86Kr + ^93Nb collision at 35 70 100 and 120 AMeV. Temperatures based on ^3He/^4He isotope ratio increase with beam energy while temperatures from excited state populations remain nearly constant around 4-5 MeV. Temperatures from the double isotope yield based on ^11C/^12C ratio are consistent with the values from excited state populations. The experimental results suggest that significant ^3He yield emitted before thermal equilibrium is reached while the fragments are mainly emitted during a low denisty stage when the system is already cooling down by light particles emission and expansion
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 1998
- Bibcode:
- 1998APS..APR.H1507X