TY - JOUR
T1 - Diphoton Amplitudes in Three-Loop Quantum Chromodynamics
AU - Caola, Fabrizio
AU - Von Manteuffel, Andreas
AU - Tancredi, Lorenzo
N1 - Publisher Copyright:
© 2021 authors. Published by the American Physical Society.
PY - 2021/3/18
Y1 - 2021/3/18
N2 - We consider the three-loop scattering amplitudes for the production of a pair of photons in quark-antiquark annihilation in QCD. We use suitably defined projectors to efficiently calculate all helicity amplitudes. We obtain relatively compact analytic results that we write in terms of harmonic polylogarithms or, alternatively, multiple polylogarithms of up to depth three. This is the first calculation of a three-loop four-point scattering amplitude in full QCD.
AB - We consider the three-loop scattering amplitudes for the production of a pair of photons in quark-antiquark annihilation in QCD. We use suitably defined projectors to efficiently calculate all helicity amplitudes. We obtain relatively compact analytic results that we write in terms of harmonic polylogarithms or, alternatively, multiple polylogarithms of up to depth three. This is the first calculation of a three-loop four-point scattering amplitude in full QCD.
UR - http://www.scopus.com/inward/record.url?scp=85103109520&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.126.112004
DO - 10.1103/PhysRevLett.126.112004
M3 - Article
C2 - 33798349
AN - SCOPUS:85103109520
SN - 0031-9007
VL - 126
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
M1 - 112004
ER -