Amplitudes for High Energy Factorization via BCFW recursion
Mirko Serino
TL;DR
This paper extends the BCFW recursion relation to compute gauge invariant scattering amplitudes with off-shell particles, aiding multi-parton scattering studies at hadron colliders within High Energy Factorization.
Contribution
It introduces an extension of the BCFW recursion relation for off-shell particles in Yang-Mills theories, providing explicit 4- and 5-point amplitude calculations.
Findings
Extended BCFW recursion for off-shell particles
Explicit 4- and 5-point amplitude results
Facilitates multi-parton scattering analysis
Abstract
Recently, an extension of the BCFW on-shell recursion relation suitable to compute gauge invariant scattering amplitudes with off-shell particles has been presented for Yang-Mills theories with fermions. In particular, 4- and 5-point amplitudes have been completely worked out. The results are needed for the study of multi-parton scattering at hadron colliders in the framework of High Energy Factorization (HEF).
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