Effects of the deformation orders β6 &amp; β8 on the fusion parameters for spherical-deformed interacting pair

Ismail, M.; Wasfy, Maher H.; Abdul-Magead, I.A.M.; Kandil, I. M.

doi:10.9790/4861-0903016781

Cited by 4 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a consequence, an enhancement is observed in the fusion probability of heavy/superheavy nuclear systems, with the inclusion of -deformed nuclei as the target, projectile, or both the colliding partners [13][14][15][16][17][18][19][20][21]. In addition, the relevance of higher-order deformations (with axial-and reflection-symmetries) is also analyzed in reference to the fusion barrier characteristics [22][23][24][25][26]. The impact of the reflection symmetry-breaking pear shapes of octupole deformed nuclei requires further exploration to better understand the fusion process.…”

Section: Introductionmentioning

confidence: 99%

Fusion of spherical-octupole pairs of colliding nuclei for compact and elongated configurations *

Jain¹,

Sharma²,

Kumar³

2022

Chinese Phys. C

View full text Add to dashboard Cite

The deformation and associated optimum/uniquely fixed orientations play an important role in the synthesis of compound nuclei via cold and hot fusion reactions, respectively, at the lowest and highest barrier energies. The choice of optimum orientation ( ) for the ‘cold or elongated’ and ‘hot or compact’ fusion configurations of quadrupole ( ) deformed nuclei depends only on the +/- signs of -deformation [J. Phys. G: Nucl. Part. Phys. 31, 631-644 (2005)]. In our recent study [Phys. Rev. C 101, 051601(R) 2020], we proposed a new set of (different from the values reported for quadrupole deformed nuclei) after the inclusion of octupole deformation (up to ) effects. Using the respective of -deformed nuclei for cold and hot optimum orientations, we analyzed the impact of the soft- and rigid-pear shapes of octupole deformed nuclei on the fusion barrier characteristics (barrier height and barrier position ). This analysis is applied to approximately 200 spherical-plus- deformed nuclear partners, that is, 16O, 48Ca+octupole deformed nuclei. Compared with the compact configuration, the elongated fusion configuration has a relatively larger impact on the fusion barrier and cross-sections owing to the inclusion of deformations up to . Its agreement with available experimental data for the 16O+150Sm reaction ( =0.205, =-0.055) also improves when the optimum orientation degree of freedom is fixed in view of octupole deformations. This reinforces the fact that nuclear structure effects play an important role in the nuclear fusion process. Thus, octupole deformed nuclei can be used for the synthesis of heavy and superheavy nuclei.

show abstract