We consider the determination of the light-quark masses obtained from QCD sum rules. We show that small-size instantons contribute sizeable corrections to these sum rules. It therefore seems impossible to provide an accurate determination of the light-quark masses in the QCD sum rules framework. © 1993.
Gabrielli, E., Nason, P. (1993). Instanton effects in the light-quark masses determination from QCD sum rules. PHYSICS LETTERS. SECTION B, 313(3-4), 430-432 [10.1016/0370-2693(93)90014-9].
Instanton effects in the light-quark masses determination from QCD sum rules
Nason, Paolo
1993
Abstract
We consider the determination of the light-quark masses obtained from QCD sum rules. We show that small-size instantons contribute sizeable corrections to these sum rules. It therefore seems impossible to provide an accurate determination of the light-quark masses in the QCD sum rules framework. © 1993.
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