On the Equivalence of Regularization Schemes |
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Authors: | YANG Ji-Feng |
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Affiliation: | Department of Physics, East China Normal University, Shanghai 200062, China |
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Abstract: | We illustrate via the sunset diagram that dimensional regularization ‘deforms' the nonlocal contentsof multi-loop diagrams with its equivalence to cutoff regularization scheme recovered only after sub-divergence wassubtracted. Then we employed a differential equation approach for calculating loop diagrams to verify that dimensionalare argued especially in nonperturbativc perspective. |
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Keywords: | regularization scheme nonperturbative context |
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