K+Lambda(1405) Photoproduction At The Bgo-Od Experiment
12TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS (NSTAR 2019)(2020)
摘要
Since the discovery of the Lambda(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 Lambda(1405) can be produced in the reaction gamma p -> K+Lambda(1405). The pure I=0 decay mode into Sigma(0)pi(0) is prohibited for the mass-overlapping Sigma(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.
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关键词
photoproduction
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