摘要Experiment 18Ne+197Au was performed in Heavy Ion Research Facility Radioactive Ion Beam Line at Lanzhou (RIBLL). The nuclear energy levels of 18Ne were built by complete kinematical reconstruction of the decay products and diproton decay were observed from 18Ne excited states. At 6.15MeV, the experimental relative momentum and angular correlations of the emitted protons are given. The obvious enhancement at |qrel|=23MeV/c and θc.m. =40° shows the experimental criterion of 2He cluster decay from 18Neq.
Abstract:Experiment 18Ne+197Au was performed in Heavy Ion Research Facility Radioactive Ion Beam Line at Lanzhou (RIBLL). The nuclear energy levels of 18Ne were built by complete kinematical reconstruction of the decay products and diproton decay were observed from 18Ne excited states. At 6.15MeV, the experimental relative momentum and angular correlations of the emitted protons are given. The obvious enhancement at |qrel|=23MeV/c and θc.m. =40° shows the experimental criterion of 2He cluster decay from 18Neq.
[1] Goldansky V I 1960 Nucl. Phys. 19 482 [2] Goldansky V I 1961 Nucl. Phys. 27 648 [3] Goldansky V I 1965 Phys. Lett. 14 233 [4] Chromik M J et al 1997 Phys. Rev. C 55 1676 [5] Zerguerras T et al 2004 Eur. Phys. J. A 20389 [6] Giovinazzo J et al 2002 Phys. Rev. Lett 89102501 [7] Pfuetzner M et al 2002 Eur. Phys. J. A 14 279 [8] Blank B et al 2005 Phys. Rev. Lett. 94 232501 [9] Dossat C et al 2005 Phys. Rev. C 72 054315 [10] Fu C B et al 2007 Phys. Rev. C 76 021603 [11] Raciti G et al 2008 Phys. Rev. Lett 100192503 [12] Mukha I et al 2006 Nature 439 298 [13] Mukha I et al 2007 Phys. Rev. Lett. 99182501 [14] Brown B A et al 2002 Phys. Rev. C 65 051309 [15] Brown B A, Barker F C 2003 Phys. Rev. C 67041304 [16] Bennaceur K et al 1999 Phys. Rev. C 60 034308 [17] Bennaceur K et al 2001 Nucl. Phys. A 671 203 [18] Okolowicz J, Loszajczak M P, Rotter I et al 2003 Phys. Rep. 374 271 [19] Rotureau J et al 2005 Phys. Rev. Lett. 95042503 [20] Rotureau J et al 2006 Nucl. Phys. A 767 13 [21] Michel N et al 2004 Phys. Rev. C 70 064313 [22] Grigorenko L V et al 2003 Nucl. Phys. A 713372 [23] Garrido E et al 2004 Nucl. Phys. A 733 85 [24] Sun Z Y et al 2003 Nucl. Instrum. Merhods. A 503 496 [25] Guo Z Y et al 2004 Atom. Energy Sci. Technol. 38 169 [26] Koonin S 1977 Phys. Lett. B 70 43