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The singular behavior of one-loop massive QCD amplitudes with one external soft gluon
We calculate the one-loop correction to the soft-gluon current with massive fermions. This current is process independent and controls the singular behavior of one-loop massive QCD amplitudes in the limit when one external gluon becomes soft. The result derived in this work is the last missing proce...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2011
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysb.2011.11.002 http://cds.cern.ch/record/1370262 |
| Sumario: | We calculate the one-loop correction to the soft-gluon current with massive fermions. This current is process independent and controls the singular behavior of one-loop massive QCD amplitudes in the limit when one external gluon becomes soft. The result derived in this work is the last missing process-independent ingredient needed for numerical evaluation of observables with massive fermions at hadron colliders at the next-to-next-to-leading order. |
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