TTP11-11 HQET heavy-heavy vertex diagram with two velocities
TTP11-11 HQET heavy-heavy vertex diagram with two velocities
TTP11-11 HQET heavy-heavy vertex diagram with two velocities
The one-loop HQET heavy–heavy vertex diagram with arbitrary powers of all three denominators and arbitrary residual energies is investigated. Various particular cases in which the result becomes simpler are considered.