彭光雄 G.X. Peng 1. Matching-invariant running 连续的跑动耦合常数 Resummation 重求和

Presentation on theme: "彭光雄 G.X. Peng 1. Matching-invariant running 连续的跑动耦合常数 Resummation 重求和"— Presentation transcript:

1 Quark matter in perturbation with a rapidly-convergent running coupling
彭光雄 G.X. Peng 1. Matching-invariant running 连续的跑动耦合常数 Resummation 重求和 3. Quark matter in perturbation 夸克物质与微扰模型 Ref.: IJMPE 26: ; PRD 92: ; PLB 634: 413 QCD相变与相对论重离子物理 西安交通大学

2 where the gluon field tenser 胶子场张量
Fundamental QCD where the gluon field tenser 胶子场张量 the covariant derivative 协变导算符 defining QCD相变与相对论重离子物理 西安交通大学

3 Running coupling and running quark masses
Chetyrkin: PLB 404 (1997) 161; Vermaseren et al: PLB 405 (1997) 327. Ritbergen et al: PLB400(1997)379. The original beta and gamma coefficients

4 Matching-invariant coupling
Peng: PLB 634 (2006) 413

5 Conventional series expansion
f0,0=f1,1=1, f1,0=C QCD相变与相对论重离子物理 西安交通大学

6 Resummation 重求和 … First-order: Peng: PLB 634 (2006) 413

7 The fast-convergent coupling
QCD相变与相对论重离子物理 西安交通大学

8 Resummed Conventional Comparion of the convergence
QCD相变与相对论重离子物理 西安交通大学

9 The QCD Lambda:

10 Thermodynamic potential – frem MS to the new one
QCD相变与相对论重离子物理 西安交通大学

11 The energy per baryon IJMPE 26 (2017)

12 Equation of state IJMPE 26 (2017)

13 Mass-radius of quark stars
IJMPE 26 (2017)

14 fast-convergent expression for the QCD
Summary In summary, we provide a fast-convergent expression for the QCD running coupling, and applied it to the Investigation of quark matter. The corresponding EOS can support the quark star as big as two times the solar mass.

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