Constraining the density dependence of the symmetry energy in finite nuclei and nuclear matter Wei-Zhou JIANG Department of Physics, Sou theast University Nanjing, China Collaborators : Bao-An Li , Lie-Wen Chen , Yao- Lin Zhao, Zhi-Yuan Zhu , Zhong-Zhou Ren et.al.
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Constraining the density dependence of the symmetry energy in finite nuclei and nuclear matter
Constraining the density dependence of the symmetry energy in finite nuclei and nuclear matter. Wei-Zhou JIANG Department of Physics, Southeast University Nanjing, China Collaborators : Bao-An Li , Lie-Wen Chen , Yao-Lin Zhao, Zhi-Yuan Zhu , Zhong-Zhou Ren et.al. - PowerPoint PPT Presentation
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Constraining the density dependence of the symmetry energy in finite
J.Schaffner, et.al. PRL71(1993)1328; Ann. Phys. (N.Y.) 235 (1994) 35
Multi-Λhypernuclei based on 102Ca
EB/A of 102Ca+Λ’s
fY=ρY/ρB
(2) Matter with hyperonization
Glendenning, Phys.Rept.342(2001)393; Astrophys. J. 293 (1985) 47
Jiang, Nucl-th/0609024, PLB 642(06)28
2. Deexcitation energy as a good probe to DDSE
Difficult neutron radius measurement for Pb208 at JLab
A~190
Ground state: Oblate
Superdeformed Secondary minimum(SSM): Prolate
Collective excitations: isovector changes
Deexcitation energy
• Difference of binding energies between the g.s. & SSM
• Determined by the difference of potentials
• Influenced by the isovector potential and the DDSE
FSUGold
Odd-odd Au isotopes
Almost independent of pairing interactions
Properties of nucleons and mesons in medium should be constrained by the chiral symmetry and its breaking.Symmetry energy is dominated by the isovector mesons.A good candidate is the Walecka model with Brown-Rho scaling: Simple but with chiral limit