How the projectile neutron number influences the evaporation cross section in complete fusion reactions with heavy ions

被引:18
作者
Wang, Chengbin [1 ]
Zhang, Jinjuan [1 ]
Ren, Z. Z. [1 ,2 ]
Shen, C. W. [2 ,3 ]
机构
[1] Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China
[2] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China
[3] Huzhou Teachers Coll, Sch Sci, Huzhou 313000, Peoples R China
来源
PHYSICAL REVIEW C | 2010年 / 82卷 / 05期
基金
中国国家自然科学基金;
关键词
LEVEL-DENSITY; ISOTOPES; NUCLEI; MECHANISM; BARRIER; FISSION; DECAY;
D O I
10.1103/PhysRevC.82.054605
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 influence of the projectile neutron number on the evaporation residue cross sections for the reactions Pb-208(Cr-52,Cr-54, n, 2n)(258-261)Sg and Pb-208(Ti-48,Ti-50, n, 2n)(254-257)Rf has been studied within the framework of a fusion-fission statistical model. The results obtained with the KEWPIE2 code are compared with recent experimental data. The excitation functions represent the experimental results well both in the maximum value and the lactation of the peak. The calculations show that the projectile neutron number greatly influences both the capture cross section and the fusion probability.
引用
收藏
页数:6
相关论文
共 45 条
[1]   Reaction dynamics of synthesis of superheavy elements [J].
Y. Abe .
The European Physical Journal A - Hadrons and Nuclei, 2002, 13 (1-2) :143-148
[2]  
Antalic S, 2006, ACTA PHYS SLOVACA, V56, P87
[3]   Nuclear structure in cold rearrangement processes in fission and fusion [J].
Armbruster, P .
REPORTS ON PROGRESS IN PHYSICS, 1999, 62 (04) :465-525
[4]  
Bass R., 1980, NUCL REACTION HEAVY
[5]   The mechanism of nuclear fission [J].
Bohr, N ;
Wheeler, JA .
PHYSICAL REVIEW, 1939, 56 (05) :426-450
[6]   KEWPIE: A dynamical cascade code for decaying exited compound nuclei [J].
Bouriquet, B ;
Abe, Y ;
Boilley, D .
COMPUTER PHYSICS COMMUNICATIONS, 2004, 159 (01) :1-18
[7]   DYNAMIC DECAY OF NUCLEI AT HIGH-TEMPERATURE - COMPETITION BETWEEN PARTICLE-EMISSION AND FISSION DECAY [J].
DELAGRANGE, H ;
GREGOIRE, C ;
SCHEUTER, F ;
ABE, Y .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1986, 323 (04) :437-449
[8]  
DOSTROVSKY I, 1960, PHYS REV, V119, P2098, DOI 10.1103/PhysRev.119.2098.2
[9]   Influence of projectile neutron number in the 208Pb(48Ti,n)255Rf and 208Pb(50Ti,n)257Rf reactions [J].
Dragojevic, I. ;
Gregorich, K. E. ;
Duellmann, Ch. E. ;
Garcia, M. A. ;
Gates, M. ;
Nelson, S. L. ;
Stavsetra, L. ;
Sudowe, R. ;
Nitsche, H. .
PHYSICAL REVIEW C, 2008, 78 (02)
[10]   Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier [J].
Feng, Zhao-Qing ;
Jin, Gen-Ming ;
Zhang, Feng-Shou .
NUCLEAR PHYSICS A, 2008, 802 :91-106