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Pré-Publication, Document De Travail Année : 2004

Chiral Condensates, Q_7 and Q_8 Matrix Elements and Large-N_c QCD

Résumé

The correlation function of a $V-A$ current with a $V+A$ current is discussed within the framework of QCD in the limit of a large number of colours $N_c$. Applications to the evaluation of chiral condensates of dimension six and higher, as well as to the matrix elements of the $Q_7$ and $Q_8$ electroweak penguin operators are discussed. A critical comparison with previous determinations of the same parameters has also been made.
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Dates et versions

hal-00002691 , version 1 (24-08-2004)
hal-00002691 , version 2 (02-09-2004)

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Samuel Friot, David Greynat, Eduardo de Rafael. Chiral Condensates, Q_7 and Q_8 Matrix Elements and Large-N_c QCD. 2004. ⟨hal-00002691v2⟩
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