학술논문
K+Λ(1405) photoproduction at the BGO-OD experiment
Document Type
article
Author
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; Kohl Katrin; Kozlenko Nikolay; Lapik Alexander; Sandri Paolo Levi; Lisin Valery; Mandaglio Giuseppe; Messi Roberto; Moricciani Dario; Nedorezov Vladimir; Novinsky Dmitry; Pedroni Paolo; Polonski Andrei; Reitz Björn-Eric; Romaniuk Mariia; Schmieden Hartmut; Sumachev Victorin; Tarakanov Viacheslav; Tillmanns Christian
Source
EPJ Web of Conferences, Vol 241, p 01014 (2020)
Subject
Language
English
ISSN
2100-014X
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 Σ0π0 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)