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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2003, Vol. 27> Issue(7) : 585-589 

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

  •  Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000,China2 INFN-LNS,44 Via S. Sofia, I-95123 Catania, Italy

  • Within the isospin dependent Extended Brueckner-Hartree-Fock framework,the three-body force effects on the single particle potentials of a neutron and a proton in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that the contribution of the three-body force is repulsive. At low density, i.e., around and below the empirical saturation density, the effect of the three-body force is rather small, while as increasing density, it becomes more and more pronounced. It is also found that at a given density, the three-body effect increases with isospin asymmetry.
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    [1] . Bertsch G F,Gupta S D.Phys.Rep.,1988,160:189;Aichelin J,Rosenhauer A,Peilert G et al.Phys.Rep.,1991,202:233;Cugnon J,Lejeune A,Grange P.Phys.Rev.,1987,C35:861;LI B A.Phys.Rev.,1993,C48:2415;LI B A,Ko C M ,Bauer W.Inter.J.Mod.Phys.,1998,E7:1472. Insolia A,Lombardo U,Sandulescu N.Phys.Lett.,1994,B334:123. ZUOWeietal.HighEnergyPhys.andNucl.Phys.,2003,27:416(inChinese)(左维等.高能物理与核物理,2003,27:416)4. ZUO Wei,Lombardo U,LI Zeng-Hua et al.High Energy Phys.and Nucl.Phys.,2002,26:703(in Chinese)(左维,Lombardo U,李增花等.高能物理与核物理,2002,26:703) 5. Coestor.Phys.Rev.,1970,C1:7656. Brown G E,Weise W,Baym G et al.Comments Nucl.Phys.,1987,17:397. Machleidt R .Adv.Nucl.Phys.,1989,16:1898. Baldo M.Chap.1 in Nuclear Methods and the Nuclear Equation of State,Ed.Baldo M ,Singapore:World Scientific,19999. Lejeune A,Lombardo U,ZUO W.Phys.Lett.,2000,B477:4510. Grange P,Lejeune A,Martzolff M.Phys.Rev.,1989,C40:104011. Wiringa R B,Smith R A,Ainsworth T L.Phys.Rev.,1984,C29:1207 12. Hufner J,Mahaux C,Ann.Phys.,1972,73:525;Jeukenne J P,Lejeune A ,Mahaux C.Phys.Rep.,1976,25:83;Grange P,Cugnon J,Lejeune A.Nucl.Phys.,1987,A473:365 13. Sartor R.Chapter 6 in Nuclear Methods and the Nuclear Equation of State,Ed.Baldo M,Singapore:World Scientific,199914. SONG H Q,Baldo M,Giansiracusa G et al.Phys.Rev.Lett.,1998,81:158415. ZUO Wei,Lombardo U.High Energy Phys.and Nucl.Phys.,2002,26:1134(in Chinese)(左维,Lombardo U.高能物理与核物理,2002,26:1134) 16. ZUO Wei,Lombardo U,LIU Jian-Ye et al.High Energy Phys.and Nucl.Phys.,2002,26:1238(in Chinese)(左维,Lombardo U,刘建业等.高能物理与核物理,2002,26:1238)17. MA Zhong-Yu,LIU Ling.Phys.Rev.,2002,C66:024321

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ZUO Wei, Lombardo U, LIU Jian-Ye and LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential[J]. Chinese Physics C, 2003, 27(7): 585-589.
ZUO Wei, Lombardo U, LIU Jian-Ye and LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential[J]. Chinese Physics C, 2003, 27(7): 585-589. shu
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Received: 2002-09-30
Revised: 1900-01-01
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Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

    Corresponding author: ZUO Wei,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000,China2 INFN-LNS,44 Via S. Sofia, I-95123 Catania, Italy
  • Received Date: 2002-09-30
  • Accepted Date: 1900-01-01
  • Available Online: 2003-07-05

Abstract: Within the isospin dependent Extended Brueckner-Hartree-Fock framework,the three-body force effects on the single particle potentials of a neutron and a proton in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that the contribution of the three-body force is repulsive. At low density, i.e., around and below the empirical saturation density, the effect of the three-body force is rather small, while as increasing density, it becomes more and more pronounced. It is also found that at a given density, the three-body effect increases with isospin asymmetry.

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