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hep-ph2026
Holonomic techniques for massive 3-loop form factors: the gluonic case
J. Blümlein, A. De Freitas, P. Marquard +2
Massive three-loop form factors for vector, axial-vector, scalar, and pseudoscalar currents are vital for precision collider phenomenology. Extending the quarkonic framework to the…
hep-ph2026
Analytic results on the massive three-loop form factors: gluonic contributions
J. Blümlein, A. De Freitas, P. Marquard +2
We compute the gluonic contributions to the three-loop heavy-quark form factors for the vector, axial-vector, scalar, and pseudoscalar currents. In the low-energy limit, $q^2/m^2 \…