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QCD Calculation ofK^0 - \bar K^0 mixing from three-point function sum rules |
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| Authors: | N Bili? C A Dominguez B Guberina |
| Institution: | 1. Rudjer Bo?kovi? Institute, YU-41000, Zagreb, Croatia, Yugoslavia 2. Deutsches Elektronen-Synchrotron DESY, D-2000, Hamburg, Federal Republic of Germany 4. Sektion Physik, Universit?t München, D-8000, München, Federal Republic of Germany |
| Abstract: | We calculate theB parameter for \(K^0 - \bar K^0 \) mixing in the framework of QCD sum rules for a three-point function involving pseudoscalar currents, and contrast our results with other calculations. We findB=0.5±0.1±0.2, where the first error reflects uncertainties in the various QCD parameters and the second one is an estimate of uncalculated three-loop radiative and higher order quark mass corrections. |
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