Numerical Evaluation of Some Master Integrals for the 2-loop General Massive Self-mass from Differential Equations. *

نویسنده

  • Michele Caffo
چکیده

The 4-th order Runge-Kutta method in the complex plane is proposed for numerically advancing the solutions of a system of first order differential equations in one external invariant satisfied by the master integrals related to a Feynman graph. Some results obtained for the 2-loop self-mass MI are reviewed. The method offers a reliable and robust approach to the direct and precise numerical evaluation of master integrals.

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تاریخ انتشار 2003