2014/02/22 by Chun-Wang Ma, Shan-Sha n Wang, Shanshan Wang +4
Chemistry · Engineering · Materials Science · Mathematics · Physics and Astronomy · #Chemistry #Coulomb #Fragment (logic) #Isobar #Mathematics #Neutron #Nuclear Materials and Properties #Nuclear physics #Nuclear physics research studies #Nuclear reactor physics and engineering #Nucleon #Organic chemistry #Physics #Residue (chemistry) #Symmetry (geometry) #nucl-th
paper · pdf · doi:10.1088/0253-6102/64/3/334
published as Commun. Theor. Phys. 64 (3) 334 (2015) · 7pages, 7 figures
arxiv created 2014/02/22 · openalex publication_date 2015/09/01 · arxiv updated 2015/10/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The residue Coulomb interaction (RCI), which affects the result of symmetry-energy coefficient of neutron-rich nucleus in isobaric yield ratio (IYR) method, is difficult to be determined. Four RCI approximations are investigated: (i) The M1–RCI adopting the a c /T (the ratio of Coulomb energy coefficient to temperature) determined from the IYR of mirror-nucleus fragments; (ii) The M2–RCI by fitting the difference between IYRs; (iii) The M3–RCI adopting the standard Coulomb energy at a temperature T = 2 MeV; and (iv) Neglecting the RCI among isobars. The M1–, M2– and M3–RCI are no larger than 0.4. In particular, the M2–RCI is very close to zero. The effects of RCI in a sym /T of fragment are also studied. The M1– and M4–a sym /T are found to be the lower and upper limitations of a sym /T, respectively. The M2–a sym /T overlaps the M4–a sym /T, which indicates that the M2–RCI is negligible in the IYR method, and the RCI among the three isobars can be neglected. The relative consistent low values of M3–a sym /T (7.5 ± 2.5) are found in very neutron-rich isobars.