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Problems of the Strategy of Regions

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arxiv hep-ph/9907471 v1 pith:4CWUTNGY submitted 1999-07-23 hep-ph hep-th

V.A. Smirnov This is my paper
classification hep-phhep-th
keywords strategyproblemsregionsalphaapplicationariseasymptoticcharacteristic
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Problems that arise in the application of general prescriptions of the so-called strategy of regions for asymptotic expansions of Feynman integrals in various limits of momenta and masses are discussed with the help of characteristic examples of two-loop diagrams. The strategy is also reformulated in the language of alpha parameters.

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Cited by 2 Pith papers

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    At three loops, the off-shell Sudakov form factor in N=4 super Yang-Mills on the Coulomb branch violates multiplicative hard-collinear-ultrasoft factorization, with collinear and ultrasoft modes intertwined.

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