Title of article
Determination of 〈(ππ)I=2|Q7,8|K0〉 in the chiral limit
Author/Authors
Vincenzo Cirigliano، نويسنده , , John F. Donoghue، نويسنده , , Eugene Golowich، نويسنده , , Kim Maltman، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
12
From page
245
To page
256
Abstract
We reconsider the dispersive evaluation of the weak matrix elements 〈(ππ)I=2|Q7,8|K0〉 in the chiral limit. The perturbative matching is accomplished fully within the scheme dependence used in the two loop weak OPE calculations. The effects of dimension eight (and higher dimension) operators are fully accounted for. We perform a numerical determination of the weak matrix elements using our dispersive sum rules fortified by constraints from the classical chiral sum rules. A careful assessment of the attendant uncertainties is given.
Journal title
PHYSICS LETTERS B
Serial Year
2001
Journal title
PHYSICS LETTERS B
Record number
915012
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