TY  - JOUR
AU  - Becchetti, M.
AU  - Bonciani, R.
AU  - Cieri, L.
AU  - Coro, F.
AU  - Ripani, F.
PY  - 2024
DA  - 2024//
TI  - Full top-quark mass dependence in diphoton production at NNLO in QCD
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 138362
EP  - 7pp
VL  - 848
PB  - Elsevier
KW  - Collider phenomenology
KW  - Diphoton
KW  - Top quark
KW  - NNLO
AB  - In this paper we consider the diphoton production in hadronic collisions at the next-to-next-to-leading order (NNLO) in perturbative QCD, taking into account for the first time the full top quark mass dependence up to two loops (full NNLO). We show selected numerical distributions, highlighting the kinematic regions where the massive corrections are more significant. We make use of the recently computed two-loop massive amplitudes for diphoton production in the quark annihilation channel. The remaining massive contributions at NNLO are also considered, and we comment on the weight of the different types of contributions to the full and complete result.
SN  - 0370-2693
UR  - https://arxiv.org/abs/2308.10885
UR  - https://doi.org/10.1016/j.physletb.2023.138362
DO  - 10.1016/j.physletb.2023.138362
LA  - English
N1  - WOS:001131862200001
ID  - Becchetti_etal2024
ER  -