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超重核、超子化物质与对称能

超重核、超子化物质与对称能. 蒋维洲 南京东南大学物理系 Collaborators ： Bao-An Li ， Lie-Wen Chen ， Gua-Hua Zhang et. al. Introduction Effect of symmetry energy on SHE Hyperon EOS & Symmetry energy with Lambda hyperons Symmetry energy with quarks Summary. Density dependence of symmetry energy (DDSE):.

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超重核、超子化物质与对称能

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  1. 超重核、超子化物质与对称能 蒋维洲 南京东南大学物理系 Collaborators：Bao-An Li，Lie-Wen Chen，Gua-Hua Zhang et. al. 核结构会议·湖州

  2. Introduction • Effect of symmetry energy on SHE • Hyperon EOS & Symmetry energy with Lambda hyperons • Symmetry energy with quarks • Summary 核结构会议·湖州

  3. 核结构会议·湖州

  4. Density dependence of symmetry energy (DDSE): L.W.Chen,et.al., 核结构会议·湖州

  5. 核结构信息 对称能的密度依赖性 • 信息很丰富:结合能, 密度分布, 形变, 激发能 等 • Nuclear structure of exotic nuclei • Superheavy nuclei • Hypernuclei • Neutron stars • In thermodynamics 核结构会议·湖州

  6. Neutron skin thickness in 208Pb Chen, et.al. 核结构会议·湖州

  7. 核结构会议·湖州 Phys. Lett. B617(05)33

  8. Away from linearity in superheavy and light nuclei Z=120, N=172,184,198 核结构会议·湖州

  9. Model Lagrangian: with DDME1, Niksic, Vretenar, et.al., PRC 66, 024306 (2002); DDME2: Lalazissis, et.al. PRC71, 024312 (2005); Rho tensor coupling included: Jiang, Zhao, PLB617,33 (2005). 核结构会议·湖州

  10. S.p. energies RMF (Z=120, N=172) PRC 81, 044306 (2010). 核结构会议·湖州

  11. Level inversion & Symmetry energy 核结构会议·湖州

  12. Shape coexistence: A=190 Pb spherical / Hg oblate 核结构会议·湖州

  13. De-excitation from superdeformation Jiang, et.al. EPJA 44, 465 (2010); Commun.Theor.Phys.54,715 (2010). 核结构会议·湖州

  14. A two-solar-mass neutron star measured using Shapiro delay PSR J1614-2230 • Large companion star: Demorest , et al., Nature, 467: 1081 (2010) 核结构会议·湖州

  15. What occurs in NS with hyperon EOS? Pressure of well constructed models Demorest, et al., Nature 467, 1081(2010) Questions: No hyperons? How quarks interact to stiffen the EOS? 核结构会议·湖州

  16. Lots of work for hyperons • From symmetry SU(2)-----SU(3),SU(6), for vector mesons • From phenomenology Hypernuclei NY scatterings 核结构会议·湖州

  17. Examples 核结构会议·湖州

  18. 核结构会议·湖州

  19. http://arxiv.org/abs/1111.6942v1 核结构会议·湖州

  20. In bulk star matter • Glendenning, et al., Astrophys. J. 293 (1985)470; PRL 67(1991)2424; Phys. Rept. 342(2001)393 • Schaffner, et al., Phys. Rev. Lett. 71(1993)1328; Ann. Phys. (N.Y.) 235 (1994) 35; Phys. Rev. C62(2000)034311 • Prakash, et al., Phys. Rept.,280(1997)1 • …… 核结构会议·湖州

  21. Schaffner et al., PRL 89,171101(02) • Burgio, Schulze , A. Li,Hyperon stars at finite temperature • in the Brueckner theory, Phys. Rev. C83 (2011) 025804 Schulze & Rijken, Maximum mass of hyperon stars with the Nijmegen ESC08 model, PRC84(2011)035801: In BHF approach with the model, very low maximum neutron Star masses below 1.4 solar mass are found. 核结构会议·湖州

  22. Phenomenological approach for hyperon EOS RMF models with preferred density dependence of hyperon interactions Brown,Rho, PRL66, 2720(91) 核结构会议·湖州

  23. 核结构会议·湖州

  24. Nucleon effective mass 核结构会议·湖州

  25. Particle fractions vs UC/SC interactions 核结构会议·湖州

  26. 核结构会议·湖州

  27. 核结构会议·湖州

  28. III. Symmetry energy with Lambda hyperons 核结构会议·湖州

  29. 核结构会议·湖州

  30. 核结构会议·湖州

  31. 核结构会议·湖州

  32. Symmetry energy with quarks 混合相由Gibbs条件给出 核结构会议·湖州

  33. Critical temperature of LG phase transition 核结构会议·湖州

  34. Preliminary results! 核结构会议·湖州

  35. A few remarks: • Microscopic or phenomenological approach to hyperon EOS? Inconsistency exists between the theory and neutron star observation. • Appropriate in-medium hyperon interactions may account for 2 solar mass neutron star. • Effect of new degrees of freedom (hyperons and quarks) on the symmetry energy in a view of general exchange picture. • Critical temperature of LG phase transition in asymmetric matter may be sensitive to the symmetry energy. 核结构会议·湖州

  36. Thank you all! Welcome to Southeast U in Nanjing 核结构会议·湖州

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