Measurement of Angular Distribution for the 8Li(p,d)7Li Reaction
LI Yun-Ju1,2, LI Zhi-Hong1, GUO Bing1, WANG You-Bao1, BAI Xi-Xiang1, SU Jun1, LIAN Gang1, ZENG Sheng1, WANG Bao-Xiang1, QIN Xing1,3, JIANG Chao1,3, LIU Wei-Ping1, ZHAO Wei-Juan2
1China Institute of Atomic Energy, Beijing 1024132Institute of Physical Engineering, Zhengzhou University, Zhengzhou 4500523Institute of Modern Physics, Shanxi Normal University, Linfen 041004
Measurement of Angular Distribution for the 8Li(p,d)7Li Reaction
1China Institute of Atomic Energy, Beijing 1024132Institute of Physical Engineering, Zhengzhou University, Zhengzhou 4500523Institute of Modern Physics, Shanxi Normal University, Linfen 041004
摘要The 8Li(p,d)7Li reaction plays an important role in the inhomogeneous Big Bang nucleosynthesis and in the seed-nuclide production phase for the r-process. For the first time, its angular distribution at backward angles was measured in inverse kinematics at Ec.m.=4.0MeV by using an 8Li secondary beam. The result of measurement includes the contributions of 8Li(p, d0)7Li and 8Li(p, d1)7Li. The 8Li(p, d0)7Li component is estimated to be 40~58% in the mixture angular distribution by analysing the measured result.
Abstract：The 8Li(p,d)7Li reaction plays an important role in the inhomogeneous Big Bang nucleosynthesis and in the seed-nuclide production phase for the r-process. For the first time, its angular distribution at backward angles was measured in inverse kinematics at Ec.m.=4.0MeV by using an 8Li secondary beam. The result of measurement includes the contributions of 8Li(p, d0)7Li and 8Li(p, d1)7Li. The 8Li(p, d0)7Li component is estimated to be 40~58% in the mixture angular distribution by analysing the measured result.
LI Yun-Ju;LI Zhi-Hong;GUO Bing;WANG You-Bao;BAI Xi-Xiang;SU Jun;LIAN Gang;ZENG Sheng;WANG Bao-Xiang;QIN Xing;JIANGChao;LIU Wei-Ping;ZHAO Wei-Juan. Measurement of Angular Distribution for the 8Li(p,d)7Li Reaction[J]. 中国物理快报, 2008, 25(2): 455-457.
LI Yun-Ju, LI Zhi-Hong, GUO Bing, WANG You-Bao, BAI Xi-Xiang, SU Jun, LIAN Gang, ZENG Sheng, WANG Bao-Xiang, QIN Xing, JIANGChao, LIU Wei-Ping, ZHAO Wei-Juan. Measurement of Angular Distribution for the 8Li(p,d)7Li Reaction. Chin. Phys. Lett., 2008, 25(2): 455-457.
[1] Alcock C et al 1987 Astrophys. J. 320 439 [2] Kajino T et al 1990 Astrophys. J. 359 267 [3] Cowan J J et al 1991 Phys. Rep. 208 267 [4] Qian Y Z 2003 Prog. Part. Nucl. Phys. 50 153 [5] Kajino T 1995 Nucl. Phys. A 588 339 [6] Wagoner R V et al 1967 Astrophys. J. 148 3 [7] Walker T P et al 1991 Astrophys. J. 376 51 [8] Miyatake H et al 2004 Nucl. Phys. A 738 401 [9] BalBes M J et al 1993 Phys. Rev. Lett. 71 3931 [10] BalBes M J et al 1995 Nucl. Phys. A 584 315 [11] Becchetti F D et al 1992 Nucl. Phys. A 550 507 [12] Li Z H et al 2005 Phys. Rev. C 71 052801 [13] Zeng S et al 2005 Chin. Phys. Lett. 22 2219 [14] Su J et al 2006 Chin. Phys. Lett. 23 55 [15] Bai X X et al 1995 Nucl. Phys. A 588 273 [16] Liu W P et al 2003 Nucl. Instrum. Methods B 204 62 [17] Tengblad O et al 2004 Nucl. Instr. Methods A 525 458 [18] Mao Zhenlin et al 1972 Conf. on Low Energy Nucl.Phys. (Lanzhou) p 3
2008, Vol. 25 
