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Manuscript Title: SHELL2: package for the calculation of two-loop on-shell Feynman
diagrams in FORM. | ||

Authors: J. Fleischer, O.V. Tarasov | ||

Program title: SHELL2 | ||

Catalogue identifier: ACHZ_v1_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 71(1992)193 | ||

Programming language: Form. | ||

Peripherals: disc. | ||

Keywords: General purpose, Diagramatic expansions, Quantum field theory, Qed, Qcd, High energy physics, Perturbation theory, Dimensional Regularization, Multiloop feynman Integral. | ||

Classification: 4.4. | ||

Nature of problem:Dimensionally regularized multiloop massive Feynman integrals of the propagator type appearing in quantum field theory and in particular in high energy calculations are computed analytically. | ||

Solution method:We apply the method of integration by parts. The integration is reduced to simple algebraic transformations of the integrand. | ||

Restrictions:Only scalar integrals are permitted as "input". The program so far allows only the calculation of up to two-loop integrals but should be extensible for higher orders. Moreover the program allows at present only for one massive on-shell particle or one independent on-shell momentum. | ||

Running time:The typical running time strongly depends on the topology and complexity of the calculated diagram. |

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