1. K+Λ(1405) photoproduction at the BGO-OD experiment.
- Author
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Beck, R., Thiel, A., Thoma, U., Wunderlich, Y., Scheluchin, Georg, Alef, Stefan, Bauer, Patrick, Beck, Reinhard, Braghieri, Alessandro, Cole, Philip, Di Salvo, Rachele, Elsner, Daniel, Fantini, Alessia, Freyermuth, Oliver, Ghio, Francesco, Gridnev, Anatoly, Hammann, Daniel, Hannappel, Jürgen, Jude, Thomas, and Kohl, Katrin
- Subjects
QUARK models ,MESONS ,CALORIMETERS ,OPTICAL apertures ,SPECTROMETRY - Abstract
Since the discovery of the Λ(1405), it remains poorly described by conventional constituent quark models, and it is a candidate for having an "exotic" meson-baryon or "penta-quark" structure, similar to states recently reported in the hidden charm sector. The Λ(1405) can be produced in the reaction γp K
+ Λ(1405). The pure I=0 decay mode into Σ0 π0 is prohibited for the mass-overlapping Σ(1385). Combining a large aperture forward magnetic spectrometer and a central BGO crystal calorimeter, the BGO-OD experiment is ideally suited to measure this decay with the K+ in the forward direction. Preliminary results are presented. *Supported by DFG (PN 388979758, 405882627) [ABSTRACT FROM AUTHOR]- Published
- 2020
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