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Type: Journal article
Title: Production of a cascade hyperon in the Κ⁻-proton interaction
Other Titles: Production of a cascade hyperon in the Kappa(-)-proton interaction
Author: Shyam, R.
Scholten, O.
Thomas, A.
Citation: Physical Review C, 2011; 84(4):1-5
Publisher: American Physical Soc
Issue Date: 2011
ISSN: 0556-2813
Statement of
R. Shyam, O. Scholten, and A. W. Thomas
Abstract: We investigate the production of a cascade hyperon (Ξ) through the K⁻⁺p→K+ (K⁰)+≡− (≡⁰) reactions, within an effective Lagrangian model where these reactions proceed via excitations of Λ and Σ resonance intermediate states in s and u channels. The coupling constants at the various vertices are taken from previous studies and SU(3) symmetry considerations. The calculated total cross sections of these reactions, which are in good agreement with the available data, are dominated by the contributions from the Λ(1520) intermediate resonant state. However, the K⁺ meson angular distributions show selectivity to other resonant states in different angular regions, and interference among these states leads to their strong backward peaking.
Rights: ©2011 American Physical Society
RMID: 0020114433
DOI: 10.1103/PhysRevC.84.042201
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Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications
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