Thermal Stability Line for Hot Nuclei

OU Li; LIU Min; LI Zhu-Xia; LIU Ji-Feng

Chinese Physics C> 2004, Vol. 28> Issue(11) : 1160-1164

Thermal Stability Line for Hot Nuclei

China Institute of Atomic Energy,Beijing 102413,China2 College of Physics & Information Technology,Guangxi Normal University,Guilin 541004,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China4 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080,China

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Abstract：
The thermal stability for hot nucleus is investigated based on limiting temperatures. We calculate the isotope distributions of limiting temperatures for finite nuclear systems by using Skyrme interaction. The isotope distribution of limiting temperatures appears to be an upside-down parabolic shape, which looks very similar with the isotope distribution of the products of multifragmentation in intermediate energy heavy ion collisions. We systematically calculated the isotope distributions of limiting temperatures for a series of nuclei from light to heavy nuclei, and obtain a thermal stability line for hot nuclei. The thermal stability line is more neutron-rich compared with the β-stability line.

References

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. Natowitz J B et al. Phys .Rev., 2002, C65: 0346182. ZHANG L L, SONG H Q, WANG P et al .Phys. Rev., 1999, C59: 32923. LIU Min, LI Zhu..Xia, LIU Ji-Feng. Chin. Phys. Lett., 2003, 20(10): 17064. ZHUXIA Li, MIN Liu. Phys. Rev., 2004, C69: 346155. Jaqaman H R. Phys. Rev., 1989, C39: 1696. Jaqaman H R. Phys. Rev., 1989, C40: 16777. Bondorf J P et al. Nucl. Phys., 1985, A443: 3218. LIU T X, Goethem M J, van LIU X D et al. Phys., Rev., 2004, C69: 014603

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OU Li, LIU Min, LI Zhu-Xia and LIU Ji-Feng. Thermal Stability Line for Hot Nuclei[J]. Chinese Physics C, 2004, 28(11): 1160-1164.

OU Li, LIU Min, LI Zhu-Xia and LIU Ji-Feng. Thermal Stability Line for Hot Nuclei[J]. Chinese Physics C, 2004, 28(11): 1160-1164. shu

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Received: 2004-04-09
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Thermal Stability Line for Hot Nuclei

Corresponding author: OU Li,

China Institute of Atomic Energy,Beijing 102413,China2 College of Physics & Information Technology,Guangxi Normal University,Guilin 541004,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China4 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080,China

Received Date: 2004-04-09
Accepted Date: 1900-01-01
Available Online: 2004-11-05

Abstract: The thermal stability for hot nucleus is investigated based on limiting temperatures. We calculate the isotope distributions of limiting temperatures for finite nuclear systems by using Skyrme interaction. The isotope distribution of limiting temperatures appears to be an upside-down parabolic shape, which looks very similar with the isotope distribution of the products of multifragmentation in intermediate energy heavy ion collisions. We systematically calculated the isotope distributions of limiting temperatures for a series of nuclei from light to heavy nuclei, and obtain a thermal stability line for hot nuclei. The thermal stability line is more neutron-rich compared with the β-stability line.