Electromagnetic production of hyperon resonances

Abstract

The study of hyperon resonances has entered a new era of precision with advent of high-statistics photoproduction data from the CLAS detector at Jefferson Lab. These data have multi-particle final states, allowing clean identification of exclusive reactions associated with strange mesons and baryons. Examples of physics results are: evidence for isospin interference in the decay of the $\Lambda (1405)$ resonance; a strong suggestion of meson cloud effects in the structure of the $\Sigma (1385)$ resonance; data from $K^{\ast }$ photoproduction that will test the existence of the purported $K_0(800)$ meson. Properties of other hyperon resonances will also be studied in the near future.

Conference proceedings for the MENU2010

Cited by in corpus (6)

• Contribution of higher nucleon resonances to K*Λ photoproduction
• Nucleon resonances in $\gamma p\to K^{\ast +}\Lambda$
• Effects of $N(2000)5/2^{+}$, $N(2060)5/2^{-}$, $N(2120)3/2^{-}$, and $N(2190)7/2^{-}$ on $K^{\ast }\Lambda$ photoproduction
• K*Sigma photoproduction off the proton target with baryon resonances
• Analysis of the data on spin density matrix elements for $\gamma p\to K^{\ast +}\Lambda$
• K*Lambda(1116) photoproduction and nucleon resonances