Publication Date

2001

Journal or Book Title

INTERNATIONAL JOURNAL OF MODERN PHYSICS A

Abstract

Most past work on weak nonleptonic decays has mixed dimensional regularization in the weak operator product expansion with some form of a cutoff regularization in the evaluation of the matrix elements. Even with the usual technique of matching the two schemes, this combination misses physics at short distance which can be described by dimension eight (and higher dimension) operators. I describe some recent work with V. Cirigliano and E. Golowich which clarifies these effects and provides a numerical estimate suggesting that they are important.

Comments

This is the pre-published version which is collected from arXiv. The published version is at http://www.worldscinet.com/ijmpa/16/16supp01c/S0217751X01009387.html

Volume

16

Pages

1228-1230

Included in

Physics Commons

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