K0-anti-K0 mixing in the 1/Nc expansion

Details K0-anti-K0 mixing in the 1/Nc expansion K0-anti-K0 mixing in the 1/Nc expansion

2000-06-13

arxiv.org/abs/hep-ph/0006146v3

Phys.Lett.B490:213-222,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LateX, 2 figures. New hadronic function with triple poles. Improved interpolation between short and long distances.

Scientific paper

10.1016/S0370-2693(00)00977-1

We present the result for the invariant B_K factor of K0-anti-K0 mixing in the chiral limit and to next-to-leading order in the 1/Nc expansion. We explicitly demonstrate the cancellation of the renormalization scale and scheme dependences between short- and long-distance contributions in the final expression. Numerical estimates are then given, by taking into account increasingly refined short- and long-distance constraints of the underlying QCD Green's function which governs the B_K factor.

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