Equation of state of isospin-asymmetric nuclear matter in relativistic mean-field models with chiral limits
Equation of state of isospin-asymmetric nuclear matter in relativistic mean-field models with chiral limits
复制标题
具有手性极限的相对论平均场模型中同位旋不对称核物质的状态方程
DOI：
10.1016/j.physletb.2007.08.004
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发表时间：
2007-05
影响因子：
4.4
通讯作者：
Li, Bao-An
中科院分区：
文献类型：
--
作者：
Jiang, Wei-Zhou;Chen, Lie-Wen;Li, Bao-An
利用高密度下由于手性对称性恢复而产生的Brown-Rho标度的中强子性质，并考虑耦合常数的自然性，我们构造了几个具有手性极限的相对论性平均场拉格朗日量。对模型参数进行了调整，使在超正密度下得到的状态方程的对称部分与高能重离子反应的集体流动数据的要求一致，而在亚饱和密度下得到的对称能的密度依赖与最近从中能重离子反应中得到的同位旋扩散数据的要求一致。所得到的状态方程具有在中等密度下软而在高密度下自然硬的特点。利用这些约束状态方程，发现1.4M⊙标准中子星的半径在11.9 km≤R≤13.1 km范围内，最大中子星质量在2.0M⊙左右，与最近的观测结果接近。
Using in-medium hadron properties according to the Brown–Rho scaling due to the chiral symmetry restoration at high densities and considering naturalness of the coupling constants, we have newly constructed several relativistic mean-field Lagrangians with chiral limits. The model parameters are adjusted such that the symmetric part of the resulting equation of state at supra-normal densities is consistent with that required by the collective flow data from high energy heavy-ion reactions, while the resulting density dependence of the symmetry energy at sub-saturation densities agrees with that extracted from the recent isospin diffusion data from intermediate energy heavy-ion reactions. The resulting equations of state have the special feature of being soft at intermediate densities but stiff at high densities naturally. With these constrained equations of state, it is found that the radius of a 1.4M⊙canonical neutron star is in the range of 11.9 km⩽R⩽13.1 km, and the maximum neutron star mass is around 2.0M⊙close to the recent observations.
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影响因子：
3.1
作者：
Bao-An Li;Lie-Wen Chen
通讯作者：
Bao-An Li;Lie-Wen Chen
影响因子：
3.1
作者：
F. Hofmann;C. Keil;H. Lenske
通讯作者：
F. Hofmann;C. Keil;H. Lenske
DOI：
10.1016/s0370-1573(03)00139-x
发表时间：
2003-02
期刊：
arXiv: High Energy Physics - Phenomenology
影响因子：
--
作者：
M. Harada;K. Yamawaki
通讯作者：
M. Harada;K. Yamawaki
影响因子：
8.6
作者：
D. Trnka;G. Anton;J. Bacelar;O. Bartholomy;D. Bayadilov;Y. Beloglazov;R. Bogendorfer;R. Castelijns;V. Crede;H. Dutz;A. Ehmanns;D. Elsner;R. Ewald;I. Fabry;M. Fuchs;K. Essig;C. Funke;R. Gothe;R. Gregor;A. Gridnev;E. Gutz;S. Höffgen;P. Hoffmeister;I. Horn;J. Hossl;I. Jaegle;J. Junkersfeld;H. Kalinowsky;F. Klein;F. Klein;E. Klempt;M. Konrad;B. Kopf;M. Kotulla;B. Krusche;J. Langheinrich;H. Löhner;I. Lopatin;J. Lotz;S. Lugert;D. Menze;J. Messchendorp;T. Mertens;V. Metag;C. Morales;M. Nanova;R. Novotný;M. Ostrick;L. Pant;H. V. Pee;M. Pfeiffer;A. Roy;A. Radkov;S. Schadmand;C. Schmidt;H. Schmieden;B. Schoch;S. Shende;G. Suft;V. Sumachev;T. Szczepanek;A. Süle;U. Thoma;R. Varma;D. Walther;C. Weinheimer;C. Wendel
通讯作者：
D. Trnka;G. Anton;J. Bacelar;O. Bartholomy;D. Bayadilov;Y. Beloglazov;R. Bogendorfer;R. Castelijns;V. Crede;H. Dutz;A. Ehmanns;D. Elsner;R. Ewald;I. Fabry;M. Fuchs;K. Essig;C. Funke;R. Gothe;R. Gregor;A. Gridnev;E. Gutz;S. Höffgen;P. Hoffmeister;I. Horn;J. Hossl;I. Jaegle;J. Junkersfeld;H. Kalinowsky;F. Klein;F. Klein;E. Klempt;M. Konrad;B. Kopf;M. Kotulla;B. Krusche;J. Langheinrich;H. Löhner;I. Lopatin;J. Lotz;S. Lugert;D. Menze;J. Messchendorp;T. Mertens;V. Metag;C. Morales;M. Nanova;R. Novotný;M. Ostrick;L. Pant;H. V. Pee;M. Pfeiffer;A. Roy;A. Radkov;S. Schadmand;C. Schmidt;H. Schmieden;B. Schoch;S. Shende;G. Suft;V. Sumachev;T. Szczepanek;A. Süle;U. Thoma;R. Varma;D. Walther;C. Weinheimer;C. Wendel
DOI：
10.1016/j.nuclphysa.2009.10.151
发表时间：
2009-11
期刊：
Nuclear Physics
影响因子：
--
作者：
R. Arnaldi;K. Banicz;K. Borer;J. Castor;B. Chaurand;Wen‐Chang Chen;C. Cicalò;A. Colla;P. Cortese;S. Damjanovic;A. David;A. Falco;A. Devaux;L. Ducroux;H. En’yo;J. Fargeix;A. Ferretti;M. Floris;A. Förster;P. Force;N. Guettet;A. Guichard;H. Gulkanyan;J. Heuser;M. Keil;Zhenyu Li;C. Lourenço;J. Lozano;F. Manso;P. Martins;A. Masoni;A. Neves;H. Ohnishi;C. Oppedisano;P. Parracho;P. Pillot;T. Poghosyan;G. Puddu;E. Radermacher;P. Ramalhete;P. Rosinský;E. Scomparin;J. Seixas;S. Serci;R. Shahoyan;P. Sonderegger;H. Specht;R. Tieulent;A. Uras;G. Usai;R. Veenhof;H. Wöhri
通讯作者：
R. Arnaldi;K. Banicz;K. Borer;J. Castor;B. Chaurand;Wen‐Chang Chen;C. Cicalò;A. Colla;P. Cortese;S. Damjanovic;A. David;A. Falco;A. Devaux;L. Ducroux;H. En’yo;J. Fargeix;A. Ferretti;M. Floris;A. Förster;P. Force;N. Guettet;A. Guichard;H. Gulkanyan;J. Heuser;M. Keil;Zhenyu Li;C. Lourenço;J. Lozano;F. Manso;P. Martins;A. Masoni;A. Neves;H. Ohnishi;C. Oppedisano;P. Parracho;P. Pillot;T. Poghosyan;G. Puddu;E. Radermacher;P. Ramalhete;P. Rosinský;E. Scomparin;J. Seixas;S. Serci;R. Shahoyan;P. Sonderegger;H. Specht;R. Tieulent;A. Uras;G. Usai;R. Veenhof;H. Wöhri