Abstract
I report on a recent calculation done in collaboration with E. de Rafael [7] of the invariant B̂K factor of K0-K0 mixing in the chiral limit and to next-to- leading order in the 1/Nc expansion. This calculation is, to the best of our knowledge, the first example of a calculation of B̂K in which there is an explicit analytic cancellation of the μ renormalization scale and the scheme dependence between the Wilson coefficient and the corresponding kaon matrix element. I try to emphasize the ideas involved in the approach and how the method could be applied to other physical situations, rather than the details of the numerical analysis for which I refer the reader to ref. [7]. © 2001 Elsevier Science B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 346-353 |
Journal | Nuclear Physics B - Proceedings Supplements |
Volume | 96 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1 Apr 2001 |