Journal
PHYSICAL REVIEW D
Volume 101, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.076023
Keywords
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Funding
- National Natural Science Foundation of China [11675185]
- CAS-TWAS President's Fellowship Program
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We propose an alternative approach based on series representation to directly reduce multiloop multiscale scattering amplitude into set of freely chosen master integrals. And this approach avoid complicated calculations of inverse matrix and dimension shift for tensor reduction calculation. During this procedure we further utilize the Feynman parameterization to calculate the coefficients of series representation and obtain the form factors. Conventional methodologies are used only for scalar vacuum bubble integrals to finalize the result in series representation form. Finally, we elaborate our approach by presenting the reduction of a typical two-loop amplitude for W boson production.
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