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One-loop triple collinear splitting amplitudes in QCD

122   0   0.0 ( 0 )
 نشر من قبل Simon Badger
 تاريخ النشر 2015
  مجال البحث
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We study the factorisation properties of one-loop scattering amplitudes in the triple collinear limit and extract the universal splitting amplitudes for processes initiated by a gluon. The splitting amplitudes are derived from the analytic Higgs plus four partons amplitudes. We present compact results for primitive helicity splitting amplitudes making use of super-symmetric decompositions. The universality of the collinear factorisation is checked numerically against the full colour six parton squared matrix elements.



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