Direct Instanton Effects in Current-Current Correlators

Details Direct Instanton Effects in Current-Current Correlators Direct Instanton Effects in Current-Current Correlators

1994-11-08

arxiv.org/abs/hep-ph/9411246v1

Nucl.Phys. B444 (1995) 310-332

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, Latex

Scientific paper

10.1016/0550-3213(95)00082-4

We compute the effect of small-size instantons on the coefficient function of
the chiral condensate in the operator product expansion of current-current
correlators. Furthermore, we also compute the instanton corrections associated
with four-quark and six-quark operators in the factorization approximation. We
discuss the phenomenological implications of our result.

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