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https://hdl.handle.net/2440/79168
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Type: | Journal article |
Title: | Production of cascade hypernuclei via the (K⁻, K⁺) reaction within a quark-meson coupling model |
Other Titles: | Production of cascade hypernuclei via the (K-, K+) reaction within a quark-meson coupling model |
Author: | Shyam, R. Tsushima, K. Thomas, A. |
Citation: | Nuclear Physics A, 2012; 881:255-268 |
Publisher: | Elsevier Science BV |
Issue Date: | 2012 |
ISSN: | 0375-9474 1873-1554 |
Statement of Responsibility: | R. Shyam, K. Tsushima, A. W. Thomas |
Abstract: | We study the production of bound hypernuclei Be Ξ-12 and Mg Ξ-28 via the (K -, K +) reaction on 12C and 28Si targets, respectively, within a covariant effective Lagrangian model, employing Ξ bound state spinors derived from the latest quark-meson coupling model as well as Dirac single-particle wave functions. The K +Ξ - production vertex is described by excitation, propagation and decay of Λ and σ resonance states in the initial collision of a K - meson with a target proton in the incident channel. The parameters of the resonance vertices are fixed by describing the available data on total and differential cross sections for the p(K -, K +)Ξ - reaction. We find that both the elementary and hypernuclear production cross sections are dominated by the contributions from the Λ(1520) intermediate resonant state. The 0° differential cross sections for the formation of simple s-state Ξ - particle-hole states peak at a beam momentum around 1.0 GeV/c, with a value in excess of 1 μb. © 2012 Elsevier B.V. |
Description: | Published in Special issue: Progress in Strangeness Nuclear Physics / edited by A. Gal, O. Hashimoto and J. Pochodzalla |
Rights: | © 2012 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.nuclphysa.2012.01.025 |
Published version: | http://dx.doi.org/10.1016/j.nuclphysa.2012.01.025 |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics publications |
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