Preliminary Studies of Thermal Wavelength Approximation in 208Pb and 91Zr hot Nuclei

• Main Author: R. Kurniadi
• Format: Article
• Language: English
• Published: ITB Journal Publisher 2006-05-01
• Series: ITB Journal of Engineering Science
• Subjects: Thermal wave length; fugacity; level density parameters; hot nuclei
• Online Access: http://journal.itb.ac.id/download.php?file=B06005.pdf&id=152&up=8

Level density parameters of 208Pb and 91Zr in equilibrium states have been calculated with a new fugacity approximation namely a thermal wavelength approximation. In this approximation, the fugacity is directly proportional to the nucleon density. In contrast with the constant fugacity, the thermal wavelength approximation gives a simpler way to calculate the nuclei constant radius and the density profile. The calculated 208Pb nuclear density is about 0.17 (fm-3) in which the discrepancy is 0.1% higher than the experimental one. The level density parameters are 14% higher than the experimental results due to neglecting of the shell correction.