Angular momentum transfer in incomplete fusion

Pramana

A Goswami¹  B S Tomar1¹  R Tripathi¹  K Sudarshan¹  K Surendra Babu² 

[1] Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$;School of Studies in Physics, Vikram University, Ujjain 456 010, India$$

关键词: Heavy-ion reactions;    incomplete fusion;    isomeric cross-section ratio;    12C;    16O beams;    93Nb;    89Y targets;    angular momentum.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Isomeric cross-section ratios of evaporation residues formed in 12C+93Nb and 16O + 89Y reactions were measured by recoil catcher technique followed by off-line 𝛾-ray spectrometry in the beam energy range of 55.7-77.5 MeV for 12C and 68-81 MeV for 16O. The isomeric cross-section ratios were resolved into that for complete and incomplete fusion reactions. The angular momentum of the intermediate nucleus formed in incomplete fusion was deduced from the isomeric cross-section ratio by considering the statistical de-excitation of the incompletely fused composite nucleus. The data show that incomplete fusion is associated with angular momenta slightly smaller than critical angular momentum for complete fusion, indicating the deeper interpenetration of projectile and target nuclei than that in peripheral collisions.

【 授权许可】

Unknown