Direct instanton effects in current-current correlators
Abstract
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.
- Publication:
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Nuclear Physics B
- Pub Date:
- February 1995
- DOI:
- 10.1016/0550-3213(95)00082-4
- arXiv:
- arXiv:hep-ph/9411246
- Bibcode:
- 1995NuPhB.444..310N
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 24 pages, Latex