On one master integral for three-loop on-shell HQET propagator diagrams with mass
A. G. Grozin, T. Huber, D. Maitre
TL;DR
This paper derives an exact expression for a key master integral in three-loop on-shell HQET propagator diagrams with mass, providing its analytical epsilon expansion.
Contribution
It presents the first exact expression for the master integral I_2 in three-loop on-shell HQET diagrams with mass, including its epsilon expansion.
Findings
Exact expression for I_2 derived
Analytical epsilon expansion provided
Advances computational methods for HQET diagrams
Abstract
An exact expression for the master integral I_2 arising in three-loop on-shell HQET propagator diagrams with mass is derived and its analytical expansion in the dimensional regularization parameter epsilon is given.
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