Higher-multipole deformations and compactness of hot fusion reactions

Journal Article · Fri Sep 15 04:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.034603· OSTI ID:20863808

Manhas, Monika; Gupta, Raj K ^[1]; Li, Qingfeng; Greiner, Walter ^[2]; Patra, S K ^[2]

---

1. Department of Physics, Panjab University, Chandigarh 160014 (India)
2. Frankfurt Institute for Advanced Studies (FIAS), Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Str. 1, D-60438 Frankfurt (Germany)

The effect of adding the higher-multipole deformations {beta}{sub 6} and {beta}{sub 8}, and the octupole deformation {beta}{sub 3} (in addition to quadrupole and hexadecapole deformations {beta}{sub 2} and {beta}{sub 4}), on the distribution of barriers in orientation degrees of freedom is studied for a ''compact'' configuration of spherical-plus-deformed or deformed-plus-deformed nuclei in hot fusion reactions. Though {beta}{sub 3} is known to be nonzero for only a few nuclei, its role toward compactness of hot fusion reactions is found to be as important as that of {beta}{sub 4}. With {beta}{sub 3} included, depending on its sign and magnitude, the belly-to-belly compact, bbc (or equatorial compact, ec), configuration due to {beta}{sub 4} changes to not-belly-to-belly compact, nbbc (or not-equatorial compact, nec), and vice versa. Similarly, {beta}{sub 6} is found to be as important as {beta}{sub 3} and/or {beta}{sub 4} for spherical-plus-deformed nuclei, but is rather insignificant for collisions involving deformed-plus-deformed nuclei. On the other hand, the addition of {beta}{sub 8} is shown to be insignificant also for spherical-plus-deformed nuclei.

• OSTI ID: 20863808
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEFORMED NUCLEI
DEGREES OF FREEDOM
DISTRIBUTION
HEAVY ION FUSION REACTIONS
NUCLEAR DEFORMATION
OCTUPOLES
ORIENTATION
QUADRUPOLES
SPHERICAL CONFIGURATION