6533b829fe1ef96bd1289b14
RESEARCH PRODUCT
Are there three Xi (1950) states?
Juan NievesM. Pavón ValderramaJu-jun XieJu-jun XieJu-jun Xiesubject
BaryonPhysicsHigh Energy Physics - PhenomenologyNuclear and High Energy PhysicsParticle physicsHigh Energy Physics - Phenomenology (hep-ph)Octet010308 nuclear & particles physicsHadron spectroscopy0103 physical sciencesFOS: Physical sciences010306 general physics01 natural sciencesdescription
Different experiments on hadron spectroscopy have long suspected the existence of several cascade states in the $1900-2000 {\rm MeV}$ region. They are usually labeled under the common name of $\Xi (1950)$. As we argue here, there are also theoretical reasons supporting the idea of several $\Xi (1950)$ resonances. In particular, we propose the existence of three $\Xi(1950)$ states: one of these states would be part of a spin-parity $(1/2)^{-}$ decuplet and the other two probably would belong to the $(5/2)^{+}$ and $(5/2)^{-}$ octets. We also identify which decay channels are the more appropriate for the detection of each of the previous states.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |