Theoretical study of evaporation-residue cross sections for fusion reactions at energies near the Coulomb barrier

被引：6

作者：

Wang, Bing ^{[1
]}

Yue, Zi-Yang ^{[1
]}

Zhao, Wei-Juan ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Peoples R China

来源：

PHYSICAL REVIEW C | 2021年 / 103卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevC.103.034605

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 empirical coupled-channel model and the statistical model are used to analyze the measured evaporation-residue cross sections of 48 fusion reactions. The experimental data of these reactions are systematically well reproduced (within one order of magnitude). It is found that the ratio of a(f) (level density parameter in fission channel) to a(n) (level density parameter in neutron-evaporation channel) plays an important role in reproducing the data appropriately. Furthermore, a good exponential holds between the ratio a(f)/a(n) and the fissility parameter.

引用

页数：9

共 79 条

[11] Influence of the nuclear dynamical deformation on production cross sections of superheavy nuclei [J].

Bao, X. J. ;

Gao, Y. ;

Li, J. Q. ;

Zhang, H. F. .

PHYSICAL REVIEW C, 2015, 91 (01)

[12] The mechanism of nuclear fission [J].

Bohr, N ;

Wheeler, JA .

PHYSICAL REVIEW, 1939, 56 (05) :426-450

[13] HEAVY-ION FUSION CROSS-SECTIONS [J].

BRODA, R ;

ISHIHARA, M ;

HERSKIND, B ;

OESCHLER, H ;

OGAZA, S ;

RYDE, H .

NUCLEAR PHYSICS A, 1975, 248 (02) :356-376

[14] THE DEFORMATION ENERGY OF A CHARGED DROP .5. RESULTS OF ELECTRONIC COMPUTER STUDIES [J].

COHEN, S ;

SWIATECKI, WJ .

ANNALS OF PHYSICS, 1963, 22 (03) :406-437

[15] Excitation functions for 208-211Fr produced in the 18O+197Au fusion reaction -: art. no. 014609 [J].

Corradi, L ;

Behera, BR ;

Fioretto, E ;

Gadea, A ;

Latina, A ;

Stefanini, AM ;

Szilner, S ;

Trotta, M ;

Wu, Y ;

Beghini, S ;

Montagnoli, G ;

Scarlassara, F ;

Sagaidak, RN ;

Atutov, SN ;

Mai, B ;

Stancari, G ;

Tomassetti, L ;

Mariotti, E ;

Khanbekyan, A ;

Veronesi, S .

PHYSICAL REVIEW C, 2005, 71 (01)

[16] Effect of breakup on the fusion of 6Li, 7Li, and 9Be with heavy nuclei -: art. no. 024606 [J].

Dasgupta, M ;

Gomes, PRS ;

Hinde, DJ ;

Moraes, SB ;

Anjos, RM ;

Berriman, AC ;

Butt, RD ;

Carlin, N ;

Lubian, J ;

Morton, CR ;

Newton, JO ;

de Toledo, AS .

PHYSICAL REVIEW C, 2004, 70 (02) :024606-1

[17] Suppression of fusion by breakup: Resolving the discrepancy between the reactions of 9Be with 208Pb and 209Bi [J].

Dasgupta, M. ;

Hinde, D. J. ;

Sheehy, S. L. ;

Bouriquet, B. .

PHYSICAL REVIEW C, 2010, 81 (02)

[18] MECHANISM OF FORMATION AND DECAY OF COMPOUND NUCLEI GD-150 PRODUCED BY 2 ENTRANCE CHANNELS (O-16+BA134) AND (AR-40+PD110) [J].

NEGRA, SD ;

GAUVIN, H ;

JUNGCLAS, H ;

BEYEC, YL ;

LEFORT, M .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1977, 282 (01) :65-73

[19] Complete and incomplete fusion of 9Be+169Tm, 187Re at near-barrier energies [J].

Fang, Y. D. ;

Gomes, P. R. S. ;

Lubian, J. ;

Liu, M. L. ;

Zhou, X. H. ;

Mendes Junior, D. R. ;

Zhang, N. T. ;

Zhang, Y. H. ;

Li, G. S. ;

Wang, J. G. ;

Guo, S. ;

Qiang, Y. H. ;

Gao, B. S. ;

Zheng, Y. ;

Lei, X. G. ;

Wang, Z. G. .

PHYSICAL REVIEW C, 2015, 91 (01)

[20] Formation of superheavy nuclei in cold fusion reactions [J].

Feng, Zhao-Qing ;

Jin, Gen-Ming ;

Li, Jun-Qing ;

Scheid, Werner .

PHYSICAL REVIEW C, 2007, 76 (04)

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