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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2005, Vol. 29> Issue(4) : 366-370 

Study on Stiffness of the Symmetry Energy at High Densities by π－/π+ Ratio

  •  Institute of Modern Physics,CAS,Lanzhou 730000,China2 Graduate School,CAS,Beijing 100049,China3 Department of Chemistry and Physics,P.O.Box 419,Arkansas State University,State University,Arkansas 72467-0419,USA

  • using the isospin–and momentum–dependent transport model, for three different symmetry energies, we have calculated the π–/π+ ratio as a function of time and tranverse–momentum in central 132sn+124 sn collision at e_beam/A=400mev. the results show that the π–/π+ ratios is very sensitive to the stiffness of the symmetry energy. thus we can probe the stiffness of the symmetry energy at high densities by using the π–/π+ ratio at different time or transverse momentum more accurately than before. comparing experimental data with the calculations will reveal crucial information about the stiffness of the symmetry energy more accurately.hadronic transport model, symmetry energy, π–/π+ ratio
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    [1] . 　Danielewicz P , Lacey R , Lynch W G. Science , 2002 , 298 :15922.　Lattimer J M, Prakash M. Phys. Rep. , 2000 , 333 :1213.　Toro M Di et al . Nucl . Phys. , 2001 , A681 :426c4.　LI B A , Ko CM, Bauer W. Topical Review , Int . Jour. Mod. Phys. ,1998, E7 :1475.　Wolfgang et al . Effects of Isospin Asymmetry and In-Medium Correctionson Directed Tranverse Flow and the Bulance Energy , LI B A , UdoSomêder W. Isospin Physics in Heavy-Ion Collisions at Intermediate En2ergies. New York : Nova Science Publishers , Inc. , 2001. 411 —4256.　Li B A. Phys. Rev. Lett . , 2002 , 88 :192701 ; Nucl . Phys. , 2002 ,A708 :3657.　Oyamatsu K, Tanihata I , Sugahara Y et al . Nucl . Phys. , 1998 ,A634 :38.　Brown B A. Phys. Rev. Lett . , 2000 , 85 :52969 Horowitz C J, Piekarewicz J. Phys. Rev.Len，2001，86:5647;Phys. Rev，2001,C63:02550110 Fumstah R J. Nucl. Phys.，2002, A706:8511 Kutschera M. Phys. Len，1994, B340:1; Z. Phys.，1994, A348:263; Acta Phys. Polon.,1998,B29:2512 Iattimer J M, Prakash M. Astrophys.，2001，J. 550:42613 Prakash M et al. Phys. Rep.，1997, 280:114 Bombaci I. Equation of State for Dense Isospin Asymmetric Nuclear Matter for Astrophysical Applications. Equation of State for Isospin-Asymmetric Nuclear Matter and Neutron Star Properties. Li B A, Udo Schr ler W. Equation of State for Dense Isospin Asymmetric Nuclear Matter for Astrophysical Applications. New York: Nova Science Pulblishers，Inc.，2001 .35-8215 Horowitz C J, Piekarewicz J. Phys. Rep.Len，2001, 86:5647; Horowitz C J et al. Phys. Rev，2001，C63:02550116 Myers W D, Swiatecki W J. Nucl. Phys.，1996, A81:117 Pomorski K, Dudek J. Phys. Rev，2003, C67:04431618 LIB A, Ko C M, REN Z Z. Phys. Rev. Lett.，1997, 78:164419 Tsang M B et al. Phys. Rev. Lett.，2004, 92:06271020 LIB A, Ko C M. Nucl. Phys.，1997, A618:49821 Baran V, Colonna M, Toro M Di et al. Nucl. Phys.，1998, A632:28722 XU H S et al. Phys. Rev.b,tt .，2000, 85:71623 TAN W P et al. Phys. Rev.，2001，C64:051901(R)24 Baran V, Colonna M, Toro M Di et al. Nucl. Phys.，2002, A703:60325LIB A. Phys. Rev. Lets，2000, 85:422126 Greco V, Colonna M, Toro M Di et al. Phys. Rev，2003, C67:01520327 Scalone L, Colonna M, Toro M Di. Phys. Lets，1997, 846:1928 CHEN LW，Greco V, Ko C M et al. Phys. Rep.Lets，2003, 90:162701;Phys. Rep.，2003, C68:01460529 Shi L, Danielewicz P. Phys. Rep，2003, C68:06460430 LIB A. Phys. Rev，2001，C64:05460431 Das C B, Gupta S Das, Gale C et al. Phys. Rep.，2003, C67:03461132 LIB A. Phys. Rev，2004, C69:06460233 LIB A, Das C B, Gupta S Das et al. Phys. Rep.，2004, 069:011603( R);Nucl. Phys，2004, A735:56334 LIB A, Sustich A T, ZHANG B. Phys. Rep，2001, C64:05460435 Wiringa R B. Phys. Rep.，1988, C38:296736 Lane A M. Nucl. Phys.，1962, A35:67637 Jeukenne J P,Lejeune A, Mahaux C. Phys. Rep，1976, 25:8338 Persram D, Gale C. Phys. Rev.，2002, C65:06461139 CHEN L W, Ko C M, LIB A. Phys. Rev.，2004, C69:05460640 Stock R. Phys月iep.，1986, 135:25941 Bertsch G F. Nature, 1980, 283:28042 Jaqaman H R, Mekjian A Z, Zamick L. Phys. Rev.，1983, C27:2782; 1984, 029:2067;-Jaqaman H R. Phys. Rev.，1988, C39:169

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YONG Gao-Chan, Bao An Li and ZUO Wei. Study on Stiffness of the Symmetry Energy at High Densities by π－/π+ Ratio[J]. Chinese Physics C, 2005, 29(4): 366-370.
YONG Gao-Chan, Bao An Li and ZUO Wei. Study on Stiffness of the Symmetry Energy at High Densities by π－/π+ Ratio[J]. Chinese Physics C, 2005, 29(4): 366-370. shu
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Received: 2004-10-08
Revised: 1900-01-01
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Study on Stiffness of the Symmetry Energy at High Densities by π－/π+ Ratio

    Corresponding author: YONG Gao-Chan,
  • Institute of Modern Physics,CAS,Lanzhou 730000,China2 Graduate School,CAS,Beijing 100049,China3 Department of Chemistry and Physics,P.O.Box 419,Arkansas State University,State University,Arkansas 72467-0419,USA
  • Received Date: 2004-10-08
  • Accepted Date: 1900-01-01
  • Available Online: 2005-04-05

Abstract: using the isospin–and momentum–dependent transport model, for three different symmetry energies, we have calculated the π–/π+ ratio as a function of time and tranverse–momentum in central 132sn+124 sn collision at e_beam/A=400mev. the results show that the π–/π+ ratios is very sensitive to the stiffness of the symmetry energy. thus we can probe the stiffness of the symmetry energy at high densities by using the π–/π+ ratio at different time or transverse momentum more accurately than before. comparing experimental data with the calculations will reveal crucial information about the stiffness of the symmetry energy more accurately.hadronic transport model, symmetry energy, π–/π+ ratio

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