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- W2999272715 abstract "We develop a model that describes the γ p → K+πΣ reaction in the Λ(1405) region. The model consists of gauge invariant photo-production mechanisms, and the chiral unitary model that gives the rescattering amplitudes where Λ(1405) is contained. The model also contains phenomenological parameters, associated with short-range dynamics, to be used in fitting data. We successfully fit recent CLAS data for the πΣ invariant mass distributions (line-shape) in the γ p → K+πΣ reaction for all the charge states. We find that the higher mass pole for Λ(1405) of the chiral unitary model plays an important role in the reaction. We also find the nonresonant background contribution is not negligible, and its sizable effect shifts the Λ(1405) peak position by several MeV. This work sets a starting point for a fuller analysis in which line-shape as well as K+ angular distribution data are simultaneously analyzed for extracting Λ(1405) pole(s)." @default.
- W2999272715 created "2020-01-23" @default.
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- W2999272715 date "2013-01-01" @default.
- W2999272715 modified "2023-09-23" @default.
- W2999272715 title "Theoretical analysis of Λ(1405) photoproduction" @default.
- W2999272715 hasPublicationYear "2013" @default.
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