https://doi.org/10.1140/epjc/s10052-019-7505-x
Regular Article - Theoretical Physics
Analytic results for decays of color singlets to gg and
final states at NNLO QCD with the nested soft-collinear subtraction scheme
1
Rudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK
2
Wadham College, Oxford, OX1 3PN, UK
3
Institute for Theoretical Particle Physics, KIT, Karlsruhe, Germany
4
Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
* e-mail: fabrizio.caola@physics.ox.ac.uk
Received:
22
October
2019
Accepted:
22
November
2019
Published online:
16
December
2019
We present compact analytic formulas that describe the decay of colorless particles to both and gg final states through next-to-next-to-leading order in perturbative QCD in the context of the nested soft-collinear subtraction scheme. In addition to their relevance for the description of decays like
,
,
and
, these results provide an important building block for calculating NNLO QCD corrections to arbitrary processes at colliders within the nested soft-collinear subtraction scheme.
© The Author(s), 2019