PT Journal
AU Becchetti, M
   Bonciani, R
   Cieri, L
   Coro, F
   Ripani, F
TI Full top-quark mass dependence in diphoton production at NNLO in QCD
SO Physics Letters B
JI Phys. Lett. B
PY 2024
BP 138362
EP 7pp
VL 848
DI 10.1016/j.physletb.2023.138362
LA English
DE Collider phenomenology; Diphoton; Top quark; 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.
ER