Reconciliation of mass-asymmetry systematics for incomplete fusion

NUBA Conference Series -1: Nuclear Physics and Astrophysics

物理学;天文学

Singh, Pushpendra P.^1 ; Yadav, Abhishek^2 ; Sharma, Vijay R.^3 ; Kumar, R.^2 ; Sharma, Manoj K.^3 ; Singh, B.P.^4 ; Singh, R.P.^2 ; Muralithar, S.^2 ; Bhowmik, R.K.^2 ; Prasad, R.^4

Department of Physics, Indian Institute of Technology Ropar, Rupnagar, PB

140 001, India^1

NP-Group, Inter-University Accelerator Center, New Delhi

110 067, India^2

Department of Physics, S. V. College, Aligarh, UP

202 001, India^3

Acc. Lab., Department of Physics, A. M. University, Aligarh, UP

202 002, India^4

关键词: Excitation function;    Incomplete fusion;    Mass asymmetries;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/590/1/012031/pdf
DOI  :  10.1088/1742-6596/590/1/012031

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The onset and strength of incomplete fusion (ICF) has been studied in the framework of Morgenstern's mass-asymmetry systematics. The fraction of ICF has been deduced in12C+169Tm system at energies ranging from 1.02V b to 1.64Vb (Vb = 54.94 MeV from the analysis of excitation functions (EFs). It has been found that the ICF starts influencing complete fusion at noticeably lower, β-values (i.e., 0.025 or 2. 5% of c) than that proposed by Morgenstern (i.e., ≈ 6% of c). The fraction of ICF increases with entrance channel mass-asymmetry for individual projectiles, termed as projectile dependent mass-asymmetry (ProMass-) systematics. The proposed ProMass- systematics has withstood all tests that have been done for fairly large number of systems to verify its validness.