6533b7d4fe1ef96bd1263386
RESEARCH PRODUCT
The small K pi component in the K* wave functions
M. BayarF. AcetiC. W. Xiaosubject
PhysicsNuclear and High Energy PhysicsParticle physicsStatesNuclear Theory010308 nuclear & particles physicsQuark-Model01 natural sciencesDynamicsScatteringHigh Energy Physics - PhenomenologyFormalism (philosophy of mathematics)Chiral unitary approach0103 physical sciencesPi010306 general physicsWave functionMathematical physicsdescription
We use a recently developed formalism which generalizes Weinberg's compositeness condition to partial waves higher than s-wave in order to determine the probability of having a K pi component in the K* wave function. A fit is made to the K pi phase shifts in p-wave, from where the coupling of K* to K pi and the K pi loop function are determined. These ingredients allow us to determine that the K* is a genuine state, different from a K pi component, in a proportion of about 80%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-02-01 |