Two-point function of strangeness-carrying vector-currents in two-loop Chiral Perturbation Theory

Details Two-point function of strangeness-carrying vector-currents in two-loop Chiral Perturbation Theory Two-point function of strangeness-carrying vector-currents in two-loop Chiral Perturbation Theory

1999-09-11

arxiv.org/abs/hep-ph/9909329v1

Nucl.Phys.Proc.Suppl. 86 (2000) 220-223

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at QCD99, 4 pages, Latex with 1 figure and espcrc2.sty

Scientific paper

10.1016/S0920-5632(00)00568-5

We present our calculation of the correlator $$ between two external vector-currents with the quantum-numbers of a charged kaon. The renormalized expression to $O(p^6)$ in $SU(3) \times SU(3)$ standard chiral perturbation theory is finite and scale-independent. The result is used to determine, via an IMFESR, the phenomenologically relevant finite $O(p^6)$-counterterm combination $Q_V$ in a way which is not sensitive to isospin breaking.

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