Largely Deformed Dinuclear System Formed in 19F +27Al Dissipative Collision
HAN Jian-Long1,3, WANG Qi1, DONG Yu-Chuan1,3, LI Song-Lin1, DUAN Li-Min1, XU Hu-Shan1, XU Hua-Gen1,3, CHEN Ruo-Fu1,3, BAI Zhen1,3, WU He-Yu1, LI Zhi-Chang2, LU Xiu-Qin2, ZHAO Kui2, ZHOU Ping2, LIU Jian-Cheng2, XU Guo-Ji2, Sergey Yu Kun4,5
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2China Institute of Atomic Energy, Beijing 102413
3Graduate School of Chinese Academy of Sciences, Beijing 100049
4Centro de Ciencias Fisicas, National University of Mexico (UNAM), Cuernavaca, Mexico
5Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia
Largely Deformed Dinuclear System Formed in 19F +27Al Dissipative Collision
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2China Institute of Atomic Energy, Beijing 102413
3Graduate School of Chinese Academy of Sciences, Beijing 100049
4Centro de Ciencias Fisicas, National University of Mexico (UNAM), Cuernavaca, Mexico
5Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia
Abstract： Excitation functions are measured for different charge products of the 19F+27Al reaction in the laboratory energy range 110.25--118.75MeV in steps of 250keV at θlab=57°, 31° and -29°. The coherence rotation angular velocities of the intermediate dinuclear systems formed in the reaction are extracted from the cross section energy autocorrelation functions. Compared the angular velocity extracted from the experimental data with the ones deduced from the sticking limit, it is indicated that a larger deformation of the intermediate dinuclear system exists.
2006, Vol. 23 
