THE CALCULATION OF VARIOUS QUANTITIES WITHIN PERTURBATION THEORY AT THE 3- AND 4-LOOP ORDER

T. van Ritbergen, J.A.M. Vermaseren, S.A. Larin and P. Nogueira
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T. van Ritbergen: NIKHEF-H P.O. Box 41882, 1009 DB, Amsterdam, The Netherlands
J.A.M. Vermaseren: NIKHEF-H P.O. Box 41882, 1009 DB, Amsterdam, The Netherlands
S.A. Larin: Institute for Nuclear Research of the Russian Academy of Sciences (INR), Moscow, 117312, Russia
P. Nogueira: Universidade Técnica de Lisboa, Lisbon, Portugal

International Journal of Modern Physics C (IJMPC), 1995, vol. 06, issue 04, 513-518

Abstract: We discuss methods and techniques that were recently used in the following high order perturbative calculations: the large quark mass expansion of the decay ratesZ0→hadrons andτ→ν+hadrons and the calculation of various quantities for deep inelastic lepton hadron scattering. Progress on the automatization of some general procedures is discussed.

Date: 1995
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DOI: 10.1142/S0129183195000368

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