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Seminumerical evaluation of one-loop corrections

Abstract:

We present a seminumerical algorithm to calculate one-loop virtual corrections to scattering amplitudes. The divergences of the loop amplitudes are regulated using dimensional regularization. We only treat in detail the case of amplitudes with up to five external legs and massless internal lines, although we believe the method to be more generally applicable. Tensor integrals are reduced to generalized scalar integrals, which in turn are reduced to a set of known basis integrals using recursi...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.73.014027

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Journal:
PHYSICAL REVIEW D
Volume:
73
Issue:
1
Publication date:
2006-01-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:aad250b1-6a3f-4de4-9400-6052fa457dff
Source identifiers:
25287
Local pid:
pubs:25287
Language:
English

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