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60MeV 17 F+ 12 C 准弹散射研究

60MeV 17 F+ 12 C 准弹散射研究. 张高龙 1,2 ，张春雷 1,3 ，张焕乔 1 ，林承键 1 ， 庞丹阳 2 ， S. Kubono 4 ， C. Signorini 5 等 1 、中国原子能科学研究院 2 、北京航空航天大学 3 、中科院高能物理研究所 4 、东京大学，日本 5 、 Padova 大学和 INFN ，意大利 2012. 4. 报告内容.

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60MeV 17 F+ 12 C 准弹散射研究

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  1. 60MeV 17F+12C 准弹散射研究 张高龙1,2，张春雷1,3，张焕乔1，林承键1 ， 庞丹阳2，S. Kubono 4，C. Signorini 5 等 1、中国原子能科学研究院 2、北京航空航天大学 3、中科院高能物理研究所 4、东京大学，日本 5、Padova大学和INFN，意大利 2012. 4

  2. 报告内容 1. 背景介绍 2. 实验装置 3. 结果和讨论 4. 总结

  3. 1. 背景介绍 (i) RIB 物理 (ii) 直接核反应(弹性散射，破裂反应和转移反应等)

  4. 17F: (i) 价质子束缚能是601 keV (ii) 在破裂阈下仅有一个束缚态 (iii) 第一激发态有晕结构

  5. 10MeV/u 17F+208Pb 弹性散射截面和卢瑟福散射截面的比值 [2] . 实验上测量的19F+208Pb, 17F+208Pb 和16O+208Pb 系统的熔合-裂变截面[1]. [1] K. E. Rehm et al., Phys. Rev. Lett 81 (1998) 3341. [2] J. F. Liang et al., Phys. Rev. C 65 (2002) 051603.

  6. 120MeV 17F+208Pb 弹性散射角分布 [3]. [3]J. F. Liang et al., Phys. Rev. C67 (2003) 044603.

  7. 90.4 (91) 和 98MeV17F (19F)+208Pb 准弹散射角分布[4]. 90.4MeV17F+208Pb, 78MeV 16,17O+208Pb和 91MeV 19F+208Pb实验弹性散射截面光学模型分析的比较 [4]. [4] M. Romoli et al., Phys. Rev. C 69 (2004) 064614.

  8. 10MeV/u17F+12C和17F+14N以及12MeV/u14N+13C弹性散射数据[5]10MeV/u17F+12C和17F+14N以及12MeV/u14N+13C弹性散射数据[5] [5] J. C. Blackmon et al., Phys. Rev. C 72 (2005) 034606.

  9. 54.1MeV和58.5MeV17F+58Ni准弹散射角分布[6] [6] M. Mazzocco et al., Phys. Rev. C 82 (2010) 054604.

  10. 120MeV 17F+208Pb中产物16O 的角分布 [2] 98MeV 17F+208Pb 中产物16O的角分布 [2] [2]J. F. Liang et al., Phys. Rev. C67 (2003) 044603.

  11. 17F+208Pb 熔合激发函数和角度积分的破裂截面的比较 [2] 10MeV/u 17F+208Pb 中16O的角分布 [3] [2]J. F. Liang et al., Phys. Rev. C67 (2003) 044603. [3] J. F. Liang et al., Phys. Rev. C 65 (2002) 051603.

  12. 2. 实验装置

  13. 3、结果和讨论

  14. (1)光学模型的计算 16O-12C 实验角分布和光学模型计算的比较

  15. (2) CDCC计算

  16. (2) 约化函数F(x) 12C 靶 [7] A. Barioni et al., Phys. Rev. C 84, 014603 (2011).

  17. [8] J. J. Kolata and E. F. Aguilera, Phys. Rev. C 79,027603 (2009).

  18. [9] L. Canto et al., Nucl. Phys. A 821, 51 (2009). [9] J. Shorto et al., Phys. Lett. B 678, 77 (2009). VB=7.856MeV RB=9.0fm h=2.844MeV R=1444.4mb x=5.97 F(x)=31.14 [10] J. C. Zamora et al., Phys. Rev. C 84, 034611(2011).

  19. 02-Apr-2012 EPJA-101914.R1 Quasi-elastic scattering of the proton drip line nucleus 17F on 12C at 60MeV Dear Dr. Zhang: We are pleased to inform you that your above-mentioned manuscript has been accepted for publication in the European Physical Journal A - "Hadrons and Nuclei". The paper will also be promptly published electronically at www.epj.org once we have received the final version. We would like to remind you that, after acceptance, no modifications can be made either to the list of authors, to the text or to the figures.

  20. 4. 总结 (1) 测量了60MeV 17F+12C 准弹散射截面。利用光学模型和CDCC计算对实验数据进行了分析，考虑了17F的激发和破裂效应。 (2) 分析得到了60MeV 17F+12C 光学势参数，观察到在近库仑位 垒能区，此系统的弹核破裂效应对弹性道的贡献较小。 (3) 利用约化函数F(x)分析了弱束缚核和稳定核在12C靶上的破裂效应，观察到弱束缚弹核在轻靶上的破裂道不重要。

  21. 谢 谢

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