Speaker
Description
We present an investigation of the mass-asymmetric collision of a ⁸⁶Kr beam with a ²⁷Al target at an incident energy of 15 MeV/nucleon. The primary goal is to characterize the mass, angular, and momentum distributions of projectile-like fragments emerging from this reaction. The experimental data utilized here were acquired with the MARS spectrometer at the Texas A&M University Cyclotron Institute during earlier work by our group [1]. These data are compared with theoretical predictions from two approaches: the phenomenological Deep-Inelastic Transfer (DIT) model, that describes the reaction dynamics, [2] and the microscopic Constrained Molecular Dynamics (CoMD) model [3]. In both cases, the statistical decay code GEMINI [4] is employed to describe the de-excitation of primary fragments. A comparison between the measured observables and the model outcomes offers meaningful insight into the contributing reaction mechanisms. The DIT model successfully captures the multinucleon transfer (MNT) processes. The CoMD model, while also reproducing the MNT features, additionally accounts for an incomplete fusion component in this light target. It is worth noting that the MNT mechanism is responsible for generating neutron-rich nuclides in this mass region [5–9]. We anticipate that the study of this mass-asymmetric system will enhance our understanding of heavy-ion reaction mechanisms below the Fermi energy regime (15–35 MeV/nucleon).
References
[1] G.A. Souliotis et al., Phys. Rev. C 84, 064607 (2011)
[2] L. Tassan-Got et al., Nucl. Phys. A 524, 121 (1991)
[3] M. Papa et al., Phys. Rev. C 64, 024612 (2001)
[4] R.J. Charity et al., Nucl. Phys. A 483, 371 (1988)
[5] O. Fasoula et al., Phys. Rev. C 113, 034621 (2026)
[6] S. Koulouris et al., Phys. Rev. C 108, 044612 (2023)
[7] Ch. Giannitsa et al., HNPS Advances in Nuclear Physics Vol. 32, 101 (2025)
[8] K. Gkatzogias et al., HNPS Advances in Nuclear Physics Vol. 32, 183 (2025)
[9] K. Palli et al., EPJ Web of Conferences 252, 07002 (2021)