Quadratic Mass Corrections of Order $α_s^3 m_q^2/s$ to the Decay Rate of Z- and W- Bosons

Details Quadratic Mass Corrections of Order $α_s^3 m_q^2/s$ to the Decay Rate of Z- and W- Bosons Quadratic Mass Corrections of Order $α_s^3 m_q^2/s$ to the Decay Rate of Z- and W- Bosons

1996-08-30

arxiv.org/abs/hep-ph/9609202v1

Phys.Lett. B406 (1997) 102-109

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTeX, no figures

Scientific paper

10.1016/S0370-2693(97)00631-X

We analytically compute quadratic mass corrections of order $\alpha_s^3
m_q^2/s$ to the absorptive part of the (non-diagonal) correlator of two axial
vector currents. This allows us to find the correction of order $\alpha_s^3
m_q^2/M^2_W$ to the $\Gamma(W -->hadrons)$ as well as similar corrections to
$\Gamma(Z -->hadrons)$.

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