TY  - JOUR
AU  - Sborlini, G. F. R.
AU  - Driencourt-Mangin, F.
AU  - Rodrigo, G.
PY  - 2016
DA  - 2016//
TI  - Four-dimensional unsubtraction with massive particles
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 162
EP  - 34pp
VL  - 10
IS  - 10
PB  - Springer
KW  - NLO Computations
AB  - We extend the four-dimensional unsubtraction method, which is based on the loop-tree duality (LTD), to deal with processes involving heavy particles. The method allows to perform the summation over degenerate IR configurations directly at integrand level in such a way that NLO corrections can be implemented directly in four space-time dimensions. We define a general momentum mapping between the real and virtual kinematics that accounts properly for the quasi-collinear configurations, and leads to an smooth massless limit. We illustrate the method first with a scalar toy example, and then analyse the case of the decay of a scalar or vector boson into a pair of massive quarks. The results presented in this paper are suitable for the application of the method to any multipartonic process.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1608.01584
UR  - https://doi.org/10.1007/JHEP10(2016)162
DO  - 10.1007/JHEP10(2016)162
LA  - English
N1  - WOS:000387374000001
ID  - Sborlini_etal2016
ER  -