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The role of hyperon resonances in p(γ, K+)Λ processes (2001)

Janssen, S. ; Ryckebusch, J. ; Van Nespen, W. ; [et al.]

Springer

The European physical journal 11 (2001), S. 105-111

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ISSN: 1434-601X

Keywords: PACS. 13.60.Le Meson production – 14.20.Jn Hyperons – 14.20.Gk Baryon resonances with S = 0

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: We discuss the role of hyperon resonances in the u-channel when modeling p γ, K + Λ processes in an effective Lagrangian approach. Without the introduction of hyperon resonances, one is forced to use soft hadronic form factors with a cutoff mass which is at best two times the kaon mass. After inclusion of the hyperon resonances in the u-channel, we obtain a fair description of the data with a cutoff mass of the order of 1.8 GeV.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100500170100

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