-
Abstract:
Fragment-fragment conelation functions have been measured in E/A=30 MeV 40Ar+natAg reaction via the technique of intensity interferometry. Emission times of intermediate mass fragments have been extracted from reduced velocity correlation functions by using the threebody trajectory model. The average emission time of intermediate mass fragments varies with the energy of fragments. It decreases from about 300fm/c for low energy fragments to about 80fm/c for energetic fragments. After subtmcting the contribution of projectile-like fragments, average emission times of mid-rapidity fragments are of the order of 250fm/c for this reaction.It indicates that intermediate mass fragments emitted in this reaction mainly come from sequential binary decays.
-
-
References
[1]
|
Harris J W et al. Nucl. Phys., 1987, A471:241C-252C[2] de Souza R T et al. Phys. Lett, 1991, B268:6-11[3] Bowman D R et al. Phys. Rev. Lett., 1991,67: 1527-1530[4] Trockel R et al. Phys. Rev. Lett, 1987, 59:2844-2847[5] Kim Y D et al. Phys. Rev. Lett, 1991, 67: 14-17[6] Bauge E et al. Phys. Rev. Lett, 1993, 70:3705--3708[7] He Zhi Yong et al. Chinese Physics Letters, 1995, 12(9):521-523[8] He Zhi Yong et al. High Energy Physics and Nuclear Physics (in Chinese), 1996, 20(7):596-600(贺智勇等。高能物理与核物理,1996,20(7):596-600)[9] He Zhi Yong et al. Nucl. Phys., 1997, A620:214-228[10] He Zhi Yong et al. Acta Physica Sinica (in Chinese), 1997, 46(7): 1312-1318(贺智勇等。物理学报1997,46(7):1312-1318)[11] Li Zu Yu et al. Nucl. Instr. and Meth., 1996, A373:198--201[12] Kim Y D et al. Phys. Rev., 1992, C45:387-395[13] Elmaani A et al. Nucl. Instr. and Meth., 1992, A313:401-412[14] Elmaani A et al. Phys. Rev., 1993, C47:1321-1324[15] Gelbke C K Nucl. Phys., 1992, A538:65C-74C[16] Friedman W A et al. Phys. Rev., 1990, C42:667-673[17] Peilert G et al. Phys. Rev., 1989, C39: 1402-1419[18] Bod D H, Glosli J N. Phys. Rev., 1988, C37:91--100;1990, C42:R502-R505
|
-
[1] |
LIU Chang-Long
, LU Yi-Ying
, YIN LI
. Effects of Additional Vacancy-Like Defects Produced by Ion Impealations on Boron Thermal Diffusion in Silicon. Chinese Physics C,
2005, 29(11): 1107-1111. |
[2] |
Guo Hua
. In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C,
1999, 23(5): 459-468. |
[3] |
BES Collaboration
. Experimental Study of Resonance f2(1270) in the J/ψ Hadronic Decay. Chinese Physics C,
1993, 17(2): 97-106. |
[4] |
Sa Ben-hao
, Zhang Xi-zhen
, Li Zhu-xia
, Shi Yi-jin
. A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C,
1980, 4(3): 398-400. |
-
Access
-
-