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.
Scheluchin, G., Alef, S., Bauer, P., Beck, R., Braghieri, A., Cole, P., et al. (2020). K+Λ(1405) photoproduction at the BGO-OD experiment. EPJ WEB OF CONFERENCES, 241 [10.1051/epjconf/202024101014].
K+Λ(1405) photoproduction at the BGO-OD experiment
Fantini, Alessia;Messi, Roberto;
2020-09-22
Abstract
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.| File | Dimensione | Formato | |
|---|---|---|---|
|
epjconf_nstar2020_01014.pdf
accesso aperto
Tipologia:
Versione Editoriale (PDF)
Licenza:
Creative commons
Dimensione
2.83 MB
Formato
Adobe PDF
|
2.83 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
