Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP04(2015)036
Keywords
QCD Phenomenology; Jets
Categories
Funding
- Hungarian Scientific Research Fund [K-101482]
- European Union
- State of Hungary
- European Social Fund [TAMOP 4.2.4. A/2-11-1-2012-0001, PITN-GA-2010-264564]
- Italian Ministry of University and Research under the PRIN project [2010YJ2NYW]
- Istituto Nazionale di Fisica Nucleare (INFN) through the Iniziativa Specifica PhenoLNF
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We compute the fully differential decay rate of the Standard Model Higgs boson into b-quarks at next-to-next-to-leading order (NNLO) accuracy in as. We employ a general subtraction scheme developed for the calculation of higher order perturbative corrections to QCD jet cross sections, which is based on the universal infrared factorization properties of QCD squared matrix elements. We show that the subtractions render the various contributions to the NNLO correction finite. In particular, we demonstrate analytically that the sum of integrated subtraction terms correctly reproduces the infrared poles of the two-loop double virtual contribution to this process. We present illustrative differential distributions obtained by implementing the method in a parton level Monte Carlo program. The basic ingredients of our subtraction scheme, used here for the first time to compute a physical observable, are universal and can be employed for the computation of more involved processes.
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