EPJ Web of Conferences (Jan 2020)

K+Λ(1405) photoproduction at the BGO-OD experiment

  • 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

DOI
https://doi.org/10.1051/epjconf/202024101014
Journal volume & issue
Vol. 241
p. 01014

Abstract

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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)