Soft matters, or the recursions with massive spinors
Abstract We discuss recursion relations for scattering amplitudes with massive particles of any spin. They are derived via a two-parameter shift of momenta, combining a BCFW-type spinor shift with the soft limit of a massless particle involved in the process. The technical innovation is that spinors...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2021-05-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | https://doi.org/10.1007/JHEP05(2021)238 |