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1999 Vol. 16, No. 3

'99 Proceeding of 1st Symposium of Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou
99 Proceeding of 1st Symposium of Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou
Excitation Function Measurement of Total Reaction Cross Section at Intermediate Energy for Light Exotic Nuclei
Shen Wen-qing, Feng Jun, Ma Yu-gang, Wang Jian-song, Fang De-qing, Cai Xiang-zhou, Su Qian-ming
1999, 16(3): 133-136. doi: 10.11804/NuclPhysRev.16.03.133
Abstract:
A comparison of interaction cross section at relativistic and intermediate energy provides important information about the existence of tail component in the density distribution. The Glauber model calculation always underestimates the total reaction cross section at intermediate energy. The differences are enhanced for halo and skin nuclei. The method to extract the size of nuclei via Glauber model seems to have some ambiguity. The excitation function of total reaction...
Proposed Experimental Setups of RIBLL
Wu He-yu
1999, 16(3): 137-144. doi: 10.11804/NuclPhysRev.16.03.137
Abstract:
Radioactive Ion Beam Line in Lanzhou (RIBLL) is able to produce hundreds of radioactive ion beams, by mean of projectile fragmentation. A high performance setup for nuclear direct reaction was promoted to track the radioactive ion, and to measure its charge states, nuclear charge, mass, energy. It benefits precise experiment of both nuclear reaction and nuclear structure. An experimental magnet, composing by dipole magnet and vacuum chamber, should be used as magnetic spectrometer to ...
Status of RIBLL and Some New Experiments
Xiao Guo-qing, Zhan Wen-long, Guo Zhong-yan
1999, 16(3): 145-147. doi: 10.11804/NuclPhysRev.16.03.145
Abstract:
The status of RIBLL and some new experiments performed since the first operation of RIBLL in 1997 are described. Some of the experimental results are introduced and discussed.
New Isotope Identification and Decay Property Studies on Radioactive Nuclear Beam Facilities
Yang Yong-feng, Liu Jun-hui
1999, 16(3): 148-152. doi: 10.11804/NuclPhysRev.16.03.148
Abstract:
The progresses of new isotope identification and decay property studies on radioactive nuclear beam facilities are reviewed. Studies of the decay properties of exotic nuclei that will be performed at RIBLL are briefly introduced.
Meson Production in Heavy Ion Collisions
Jiang Huan-qing
1999, 16(3): 153-158. doi: 10.11804/NuclPhysRev.16.03.153
Abstract:
The possibilities for experimental study of meson production at Cooling Storage Ring (CSR) of Lanzhou are discussed. It is shown that the study of production of the pion and eta mesons at CSR is of significance. Nucleon can be excited to Δ and N * at CSR energy region. Therefore, it is important to consider the degree of Δ and N * in the study of the equation of states of hot and dense matter. The produced mesons in heavy ion collisions can provide information on...
CSR of Lanzhou and Nuclear Physics at High Densities
Zhuang Peng-fei, Zhao Wei-qin
1999, 16(3): 159-164. doi: 10.11804/NuclPhysRev.16.03.159
Abstract:
The possibility to produce highly dense nuclear matter at CSR of Lanzhou and the corresponding signals at final state are discussed. Especially, the maximum baryon density reached at CSR is estimated, and the subthreshold production and hadronic flow risen from the partial restoration of chiral symmetry at CSR energies are analyzed.
A Sensitive Probe to Isospin dependent In medium Nucleon nucleon Cross Section in Intermediate Energy Heavy Ion Collision
Liu Jian-ye, Chen Bo, Zhao Qiang, Zhang Feng-shou, Wang Shun-jin, Zuo Wei
1999, 16(3): 165-168. doi: 10.11804/NuclPhysRev.16.03.165
Abstract:
Based on the revers kinetic intermediate energy heavy ion collision in which much more intermediate mass fragments are emitted towards forward angles, a sensitive observable on isospin effects in heavy ion collisions is investigated by means of using isospin dependent quantum molecular dynamics (IQMD). The calculation results show that the correlation between the multiplicity of intermediate mass fragments N IMF and total number of charged particles N c is...
Isospin Dependent Transport Theories
Zhang Feng-shou
1999, 16(3): 169-176. doi: 10.11804/NuclPhysRev.16.03.169
Abstract:
The isospin dependent transport theories and their achievements are reviewed. The main subjects for further investigation are pointed.
Study of Exotic Nuclei
Ma Zhong-yu, chen Bao-qiu
1999, 16(3): 177-180. doi: 10.11804/NuclPhysRev.16.03.177
Abstract:
We briefly present the physical aspects in the study of exotic nuclei with radioaction nuclear beams and introuduce the main theoretical methods,models and present status. A few theoretical problems,such as....
Study of Nuclei with N=Z
Xing Zheng, Wu Xing-ju, Xu Jin-zhang, Chen Xing-qu
1999, 16(3): 181-186. doi: 10.11804/NuclPhysRev.16.03.181
Abstract(2269) PDF (237KB)(550)
Abstract:
The history and current status of the study of N=Z nuclei are reviewed. T=0 n p pairing correlation is expected to play an important role in the structure of the nuclei along N=Z line. Both T=0 and T=1 pairing modes should be included in the theoretical models. Phenomena like possible competition and phase transition between different pairing modes are becoming important issues in nuclear structure.
Challenge and Chance for Nuclear Physics and Astrophysics with Radioactive Ion Beams
Yang Si-chun, Meng Jie
1999, 16(3): 187-191. doi: 10.11804/NuclPhysRev.16.03.187
Abstract:
Recent Progress
New Progress of Synthesis of Superheavy Nuclei
Zhang Huan-qiao
1999, 16(3): 192-196. doi: 10.11804/NuclPhysRev.16.03.192
Abstract:
Introduction of the first synthesis of new superheavy nuclei 289114 and 293118 in reactions of 48Ca+244 Pu and 86 Kr+ 208 Pb.