Radius-of-curvature of the S factor maximum in sub-barrier fusion hindrance.

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.75.057604· OSTI ID:914988

Jiang, C L; Back, B B; Janssens, R V. F.; Rehm, K E

A maximum of the S(E) factor is evidence for an onset of sub-barrier fusion hindrance and it can be well described by a radius-of-curvature expression near the maximum. The systematics of this radius of curvature has been studied over a wide range of projectile-target combinations. It follows a tentative general trend as a function of the parameter {zeta}=Z{sub 1}Z{sub 2}{radical}({mu}), and is strongly affected by effects associated with the nuclear structure of the nuclei in the entrance channel. It also explains the reason why the S factor maximum is not easily recognized visually for lighter, astrophysically interesting fusion systems.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 914988
• Report Number(s): ANL/PHY/JA-58894; PRVCAN; TRN: US0804867
• Journal Information: Phys. Rev. C, Vol. 75, Issue 2007; ISSN 0556-2813
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR STRUCTURE
NUCLEI
ANL