Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

LI Zeng-Hua; ZUO Wei; LIU Jian-Ye; GUO Wen-Jun

Chinese Physics C> 2003, Vol. 27> Issue(4) : 332-336

Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The properties of the spin polarized isospin symmetric nuclear matter and neutron matter as well as their equations of state are investigated by employing the Skyrme effective interaction with four sets of parameters SKM*, SⅢ, SLy230a and SLy230b. Whichever Skyrme parameter is used, the ferromagnetic phase transitions are predicted in both the isospin symmetric nuclear matter and neutron matter. Above the critical density, the polarized matter becomes more stable than the unpolarized one. Consequently such a phase transition is one of the possible explanations of the strong magnetic field in neutron stars. In addition the magnetic susceptibility χ is also evaluated and the ratio χ/χ_F is obtained as a function of the density. The existence of an infinite discontinuity confirms the occurrence of a ferromagnetic phase transition once more.

References

[1]

. Gold T .Nature.,1968,V218:731 2. Brownell Jr D J ,Callaway J. Nuovo Cimento.,1969,B60:169 3. Rice M J. Phys.Lett.,1969,A29:637 4. Silverstein S D .Phys.Rev.Lett.,1963,V23:139 5. Ostgaard E .Nucl.Phys.,1970,A154:2026. Pandharipande V R ,Garde V K ,Srivastava J V .Phys.Lett.,1972,B38:485 7. Clark J W .Phys.Rev.Lett.,1969,V23:1463 8. Pearson J M ,Saunier G .Phys.Rev.Lett.,1970,V24:325 9. Backmann S O ,Kallman C G .Phys.Lett.,1973,B43:263 10. Jackson A D ,Krotscheck E ,Meltzer D E et al.Nucl.Phys.,1982,A386:125 11. Vidana I, Polls A ,Ramos A .Phys.Rev.,2002,C65:035804 12. Chabanat E ,Bonche P ,Haensel P et al.Nucl.Phys.,1997,A627:710—746 13. GE LingXiao,ZHUO YiZhong,Norenberg W .Nucl.Phys.,1986,A459:7714. ZHUO YiZhong, HAN YinLu,WU XiZhen. Prog.Theor.Phys.,1998,V79:11015. Prakash M ,Bombaci I,Prakash M et al.Phys.Rep.,1997,V280:116. Heiselbeerg H ,Hjorth Jensen M .Phys.Rep.,2000,V328:237

[1]	ZHAO Xian-Feng , WANG Shun-Jin , ZHANG Hua , JIA Huan-Yu . Effect of f₀(975) and φ(1020) Mesons on Neutron Star Mater. Chinese Physics C, 2007, 31(4): 345-349.
[2]	LI Xi-Guo , LIU Xin-Yu , GAO Yuan . Effective Mass of Kaons in Hyperon-Rich Matter. Chinese Physics C, 2007, 31(10): 922-928.
[3]	DING Wen-Bo , LIU Guang-Zhou . Condensations of K^－ and K⁰ in Neutron Star Matter. Chinese Physics C, 2006, 30(S2): 249-251.
[4]	XU Jun , CHEN Lie-Wen , LI Bao-An , MA Hong-Ru . Temperature Dependence of the Nuclear Symmetry Energy and Symmetry Free Energy. Chinese Physics C, 2006, 30(S2): 265-267.
[5]	LANG Xiao-Li , WU Shi-Shu . Influence of the Nucleon Struture on Nuclear Matter. Chinese Physics C, 2006, 30(S2): 224-226.
[6]	CHEN Wei , LIU Liang-Gang . The Equation of State of Neutron Star Matter in Uniform Strong Magnetic Fields. Chinese Physics C, 2005, 29(2): 119-123.
[7]	ZUO Wei , LI Ang , CHEN Ji-Yan , LI Zeng-Hua . Kaon Condensation in Neutron Star Matter and Nuclear Three-Body Force Effect. Chinese Physics C, 2005, 29(7): 632-638.
[8]	ZUO Wei , CHEN Ji-Yan , LI Bao-An , LUO Pei-Yan , Lombardo U . Momentum and Density Dependence of Isospin Symmetry Potential in Asymmetric Nuclear Matter. Chinese Physics C, 2005, 29(9): 881-885.
[9]	WANG Li-Min , LI Jia-Rong . Dielectric Properties of Nuclear Matter with the ωNN Interaction at High Temperature. Chinese Physics C, 2004, 28(4): 382-386.
[10]	ZUO Wei , Lombardo U , SHEN Cai-Wan , LIU Jian-Ye , LI Jun-Qing . Equation of State of Spin-Polarized Nuclear Matter. Chinese Physics C, 2004, 28(3): 284-289.
[11]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅳ) Single-Particle Potential and Effective Mass. Chinese Physics C, 2003, 27(5): 416-420.
[12]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅲ) HVH Theorem and Fermi Energy. Chinese Physics C, 2003, 27(1): 31-35.
[13]	ZUO Wei , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence. Chinese Physics C, 2003, 27(10): 888-891.
[14]	LI Zeng-Hua , ZUO Wei , LIU Jian-Ye , GUO Wen-Jun . Properties of Spin Polarized Isospin Asymmetric Nuclear Matter. Chinese Physics C, 2003, 27(9): 789-793.
[15]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye . Properties of Isospin Asymmetric Nuclear Matterand Extended BHF Approach(Ⅰ) Isospin Dependent Extended BHF Approach. Chinese Physics C, 2002, 26(7): 703-711.
[16]	LI Wen-Fei , ZHANG Feng-Shou , CHEN Lie-Wen . Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter. Chinese Physics C, 2001, 25(9): 877-883.
[17]	SONG Hong-Qiu , ZHANG Li-Liang , SU Ru-Keng , WANG Ping . Strange Hadronic Matter in A Chiral Model. Chinese Physics C, 2000, 24(S1): 95-99.
[18]	Dong Yubing . Study of the Effect of Polarized Sea Quark Pairs on the Spin-Dependent Structures of Nucleon. Chinese Physics C, 1996, 20(2): 175-181.
[19]	ZHENG Guo-Tong , SU Ru-Keng . LIQUID-GAS PHASE TRANSITION OF SYMMETRIC NUCLEAR MATTER AND SGII-TYPE EFFECTIVE INTERACTIONS. Chinese Physics C, 1990, 14(4): 325-332.
[20]	ZHANG QI-REN . PARTIAL RESTORATION OF THE CHIRAL SYMMETRY AND THE π CONDENSATION IN NUCLEAR MATTER. Chinese Physics C, 1981, 5(3): 314-320.

Access

Get Citation

LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter[J]. Chinese Physics C, 2003, 27(4): 332-336.

LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter[J]. Chinese Physics C, 2003, 27(4): 332-336. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-04-23
Revised: 1900-01-01

Article Metric

Article Views(2834)
PDF Downloads(623)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

Corresponding author: LI Zeng-Hua,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2002-04-23
Accepted Date: 1900-01-01
Available Online: 2003-04-05

Abstract: The properties of the spin polarized isospin symmetric nuclear matter and neutron matter as well as their equations of state are investigated by employing the Skyrme effective interaction with four sets of parameters SKM*, SⅢ, SLy230a and SLy230b. Whichever Skyrme parameter is used, the ferromagnetic phase transitions are predicted in both the isospin symmetric nuclear matter and neutron matter. Above the critical density, the polarized matter becomes more stable than the unpolarized one. Consequently such a phase transition is one of the possible explanations of the strong magnetic field in neutron stars. In addition the magnetic susceptibility χ is also evaluated and the ratio χ/χ_F is obtained as a function of the density. The existence of an infinite discontinuity confirms the occurrence of a ferromagnetic phase transition once more.