|
Triton-Triton Correlation and Emission Times in Intermediate
Energy Nucleus-Nucleus Collisions
HE Zhiyong, DUAN Limin, LI Zuyu, JIN Genming, LUO Qingzheng, WU Heyu, ZHANG Baoguo, WEN Wanxin, QI Yujin, DANG Binrong, DAI Guangxi
Chin. Phys. Lett. 1995, 12 (9):
521-523
.
Triton-triton correlation functions have been measured for 40Ar+197Au collisions at E/A = 25 MeV. The anticorrelations at small relative momenta are observed and become more pronounced with the increasing total energy of two coincident tritons. Comparison with the three-body trajectory calculations indicates that the average emission times lie between 100 and 300fm/c for tritons.
|
|
Magnetic Properties of Partial Melt (Tl0.5Pb0.5) (BaxSr0.8)2Ca2Cu3Oy(x = 0.1,0.2) Superconductors
QIN Mengjun, CAI Dianxian, JIN Xin, YAO Xixian, PENG Huotian, PENG Qiuyun, ZHOU Sihai
Chin. Phys. Lett. 1995, 12 (9):
561-564
.
Magnetic measurements have been carried out on partial melt (Tl0.5Pb0.5)(BaxSr0.8)2Ca2Cu3Oy(x= 0.1,0.2) (TI-1223) samples, which indicate that higher melting temperature and longer melting time can be used to obtain Tl-1223 compound with better superconducting properties. On the contrary, introducing of Ba vacancy into Tl-1223 samples results in worse superconducting properties. At the end, the power law relationship between the critical current density and the applied field is explained by the flux creep model and the collective pinning theory.
|
17 articles
|