The Transition Matrix Element A_{gq}(N) of the Variable Flavor Number Scheme at O(\alpha_s^3)

Autor: Ablinger, J., Blümlein, J., De Freitas, A., Hasselhuhn, A., von Manteuffel, A., Round, M., Schneider, C., Wissbrock, F.
Rok vydání: 2014
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1016/j.nuclphysb.2014.02.007
Popis: We calculate the massive operator matrix element $A_{gq}^{(3)}(N)$ to 3-loop order in Quantum Chromodynamics at general values of the Mellin variable $N$. This is the first complete transition function needed in the variable flavor number scheme obtained at $O(\alpha_s^3)$. A first independent recalculation is performed for the contributions $\propto N_F$ of the 3-loop anomalous dimension $\gamma_{gq}^{(2)}(N)$.
Comment: 25 pages Latex, 2 style files
Databáze: arXiv