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RESEARCH PRODUCT
Calculation of the kaon B parameter using strictly local sum rules
Na PapadopoulosHans J. Vogelsubject
PhysicsParticle physicsQCD sum rulesPhysics and Astronomy (miscellaneous)High Energy Physics::LatticeHigh Energy Physics::PhenomenologyElementary particleFunction (mathematics)Stability (probability)PseudoscalarApplied mathematicsHigh Energy Physics::ExperimentField theory (psychology)Sum rule in quantum mechanicsQuantum field theoryEngineering (miscellaneous)description
The kaon B-parameter is computed in the framework of strictly local QCD sum rules for a threepoint function involving pseudoscalar currents. As an application of these sum rules we derive a low energy formula for the B-parameter. We show that strictly local QCD sum rules yield more reliable results than other QCD sum rules, since they need less phenomenological information and do not suffer from stability problems. Our result for the B-parameter isB=0.74±0.17.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-03-01 | Zeitschrift für Physik C Particles and Fields |