Abstract

Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of $^{35}\mathrm{Cl}$+$^{197}\mathrm{Au}$ at 43 MeV/nucleon and $^{70}\mathrm{Ge}$+$^{\mathrm{nat}}\mathrm{Ti}$ at 35 MeV/nucleon. The results are compared to the Au+Au data at 600 MeV/nucleon obtained by the ALADIN Collaboration. A mass scaling, by ${A}_{\mathrm{source}}\ensuremath{\sim}35 \mathrm{and} 190$, strongly correlated to excitation energy per nucleon, is presented, suggesting a thermal fragment production mechanism. Comparisons to a standard sequential decay model and the lattice-gas model are made. Fragment emission from a hot, rotating source is unable to reproduce the experimental source size scaling.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.