A 5.0 1.0 500 T n 5.0 0.1 10 T xi 0.3 0.1 1.0 T a2 2000 1.0 1e+05 T a3 1000 100 3000 T beta 0.5 0.1 1.0 T T0 2.0 1.0 5.0 T