SU2カラーNJLモデルのボソナイゼー ションと高温高密度での状態方程式 土岐 博(RCNP/Osaka) W. Weise (TMU/Muenchen) 09.3.30 toki@jps-rikkyo 1 NJLモデルのハドロナイゼーション (Eguchi:PR(1976))NJLモデルのハドロナイゼー ションでカイラル対称性を持ったハドロンのラグラ ンジャンを導出できる (Fukushima,Weise..)カラー閉じ込めの特徴を ポリヤコフ線のダイナミックスを導入すると良い 熱力学の性質を導出できる SU(2)cでの格子QCD計算(有限密度)が存在して いる。その結果と比較するのは興味深い 09.3.30 toki@jps-rikkyo 2 Polyakov line dynamics Fukushima, Arriola, Weise, Sasaki 09.3.30 toki@jps-rikkyo 3 SU2-lattice data Ratti, Weise, PR70(2003) Mass equation SU2 PNJL is interesting, since there exist lattice data particularly at finite density in addition to finite temperature. Nishida,Fukushima,Hatsuda,Phys.Rep.(2004) 09.3.30 toki@jps-rikkyo 4 SU(2)c PNJL NJL Lagrangian with diquark correlation ( ) 2 Path integral with auxiliary fields 09.3.30 toki@jps-rikkyo 5 SU(2)c PNJL-2 Pfaffian form (Nambu-Gorkov) 09.3.30 toki@jps-rikkyo 6 SU(2)c PNJL-2 Meson part Expansion of log term 09.3.30 toki@jps-rikkyo 7 SU(2)c PNJL-2 Mass and kinetic energy part Low momentum expansion 09.3.30 toki@jps-rikkyo 8 SU(2)c PNJL-2 KG-equation We can take higher order terms for the non-linear couplings. 09.3.30 toki@jps-rikkyo 9 SU(2)c PNJL-3 Finite temperature f (x) 1 1 ex /T 09.3.30 toki@jps-rikkyo 10 SU(2)c PNJL-4 Diquark boson 09.3.30 toki@jps-rikkyo 11 SU(2)c PNJL-4 Diquark boson has fermi energy 09.3.30 toki@jps-rikkyo 12 SU(2)c PNJL-5 Behavior of mass Meson Di-quark boson T=0 09.3.30 toki@jps-rikkyo 2 x 13 Figures(SU2c)-1 =0 m m phi ms ms mp 09.3.30 phi mp toki@jps-rikkyo 14 Figures(SU2c)-2 ~mp/2 =0 09.3.30 toki@jps-rikkyo 15 Conclusion By path integration method, we get sigma-model hadron Lagrangian. We can work out SU2c Lagrangian for mesons and diquark bosons. We work out the thermodynamics with the Polyakov line. We see the property of diquark condensation at finite density. 09.3.30 toki@jps-rikkyo 16 NJL->Chiral Lagrangian(1) Eguchi PRD(1976) NJL Lagrangian Auxiliary fields Quark integration 09.3.30 toki@jps-rikkyo 17 NJL->Chiral Lagrangian(2) Expand the Tr-log term Renormalization NJL+diquark baryonization Ebert, Nagata, Hosaka 09.3.30 toki@jps-rikkyo 18
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