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Title: Pre-equilibrium particle emission in alpha induced reactions
Authors: Singh, D
Maurya, Aditya
Giri, Pankaj K
Mahato, Amritraj
Linda, Sneha B
Shrotriya, Pramod K
Ansari, M Afzal
Keywords: Pre-equilibrium emission;Excitation functions;Pre-equilibrium fraction;Mass asymmetry;ALICE-91
Issue Date: Sep-2019
Publisher: NISCAIR-CSIR, India
Abstract: Study of the mechanism of pre-equilibrium particle emission in alpha particle induced reactions has been done in the present work. The cross-sections for systems α + 144Sm and α + 154Sm have been calculated using the statistical model code ALICE-91. Significant pre-equilibrium particle emission contribution has been obtained for these systems at higher projectile energy. At higher projectile energies, the pre-equilibrium particle emission has been found to affect predominantly over the equilibrated compound nucleus emissions. The contribution of pre-equilibrium particle emission is found larger for α + 144Sm system than that of α + 154Sm system. The present results indicate that the systems having spherical targets have more contribution of pre-equilibrium particle emission than that of systems with deformed targets. These results suggest that the shape of target (spherical or deformed) also affect the dynamics of pre-equilibrium particle emission at energy above the fusion barrier.
Page(s): 696-699
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.57(09) [September 2019]

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