THE DECAYS OF ON-SHELL AND OFF-SHELL POLARIZED GAUGE BOSONS INTO MASSIVE QUARK PAIRS AT NLO QCD

摘要

We discuss the polar angle decay distribution in the decay of on-shell and off-shell polarized (W, Z) gauge bosons into massive quark pairs. In particular, for the off-shell decays in H → (W, Z) + (W~*, Z~*)(→ q1q2) it is important to keep the masses of the charm and bottom quarks at their finite values since the scale of the problem is not set by m_(W,Z)~2 but by the off-shellness of the gauge boson which varies in the range (m1 + m2)~2 ≤ q~2 ≤ (m_H - m_(W,Z))~2.