https://doi.org/10.1051/epjconf/202024101014
K+Λ(1405) photoproduction at the BGO-OD experiment
1 Rheinische Friedrich-Willhelms-Universität Bonn, Physikalisches Institut,, Nußallee 12, 53115 Bonn Germany
2 Helmholtz-Institut fuer Strahlen- und Kernphysik, Universitaet Bonn, Nussallee 1-16, D-53115, Bonn, Germany
3 Lamar University, Department of Physics, Beaumont, , Texas, 77710 USA
4 INFN Roma “Tor Vergata", Rome, Italy
5 Università di Roma “Tor Vergata", Via della Ricerca Scientifica 1,, 00133 Rome, Italy
6 INFN sezione di Roma La Sapienza, P.le Aldo Moro 2, 00185 Rome, Italy
7 Istituto Superiore di Sanita, Viale Regina Elena 299,, 00161, Rome Italy
8 Petersburg Nuclear Physics Institute, Gatchina, Leningrad District,, 188300 Russia, Russia
9 Russian Academy of Sciences Institute for Nuclear Research, prospekt 60-letiya Oktyabrya 7a,, Moscow, 117312 Russia
10 INFN - Laboratori Nazionali di Frascati, Via E. Fermi 40, 00044 Frascati, Italy
11 INFN sezione Catania, , 95129 Catania, Italy
12 Universita degli Studi di Messina, Via Consolato del Mare 41, 98121 Messina, Italy
13 INFN sezione di Pavia, Via Agostino Bassi, 6 -, 27100 Pavia, Italy
* e-mail: scheluchin@physik.uni-bonn.de
Published online: 22 September 2020
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)
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.