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The $\sqrt{mΛ_{QCD}$ scale in heavy quarkonium

N. Brambilla·A. Pineda·J. Soto·A. Vairo
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Abstract

We investigate the effects produced by the three-momentum scale $\sqrt{mΛ_{QCD}}$ in the strong coupling regime of heavy quarkonium. We compute the leading non-vanishing contributions due to this scale to the masses and inclusive decay widths. We find that they may provide leading corrections to the S-wave decay widths but only subleading corrections to the masses.

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N. Brambilla, A. Pineda, J. Soto, A. Vairo. 2003-07-11. The $\sqrt{mΛ_{QCD}$ scale in heavy quarkonium. https://doi.org/10.1016/j.physletb.2003.11.031

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