HEAVY FRAGMENT EMISSION IN ALPHA-INDUCED REACTIONS ON ALUMINUM AT 60 MEV

被引：11

作者：

BHATTACHARYA, C

BASU, SK

BHATTACHARYA, S

CHAKRABARTI, A

CHATTOPADHYAYA, S

DUTTAMAJUMDAR, MR

KRISHAN, K

MURTHY, GSN

SINHA, B

TRIVEDI, MD

VIYOGI, YP

DATTA, SK

BHOWMIK, RK

机构：

[1] SAHA INST NUCL PHYS, Kolkata 700064, INDIA

[2] NUCL SCI CTR, NEW DELHI 110067, INDIA

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.44.1049

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The production of intermediate-mass fragments ranging from Z = 3 to 8 emitted in the reaction of 60 MeV alpha on an aluminum target has been experimentally studied. The energy spectra of the emitted fragments in the angular range of 20-degrees-130-degrees have been measured and the total production cross sections of each fragment have been estimated from the data. The double-differential cross-section data have been compared with the predictions made using (a) a phenomenological moving source model and (b) a binary fragmentation model. The absolute total emission cross sections for various fragments have been calculated assuming the statistical decay of a fully equilibrated compound nucleus and have been compared with the corresponding experimental estimates. It is found that the exit-channel deformation plays a significant role in the estimation of the Coulomb barrier of the separating nuclei. A theoretical procedure for the estimation of the exit-channel Coulomb barrier for the deformed system has been incorporated in the present calculation.

引用

页码：1049 / 1056

页数：8

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