Jun 10 – 14, 2019
Bonn, Campus Poppelsdorf
Europe/Zurich timezone

Evidence for a high spin N* resonance in eta photo-production in the extremely backward angle

Jun 11, 2019, 5:00 PM
HS 7

HS 7

Baryon spectrum through meson photoproduction Parallel Session A


Nam Tran (Research Center for Nuclear Physics, Osaka University)


We carried out exclusive measurements of photo-production of an eta meson from a proton target with an egg-shape BGO calorimeter (BGOegg) and forward charged particle detectors at LEPS2/SPring-8, Japan. The differential cross-section at extreme backward angles were obtained and compared with the prediction from etaMAID2018. Possible evidence for a high spin N* resonance with a mass of 2.2 ~2.3 GeV will be presented.

Primary author

Nam Tran (Research Center for Nuclear Physics, Osaka University)


Takashi Nakano (Kyoto University) Norihito Muramatsu (Research Center for Nuclear Physics) Toshikazu Hashimoto (Research Center for Nuclear Physics) Takatsugu Ishikawa Mr Masaru Yosoi (Research Center for Nuclear Physics) Yuji Matsumura (Research Center for Electron Photon Science, Tohoku University) Natsuki Tomida (Research Center for Nuclear Physics) Masayuk Niiyama (Kyoto Sangyo University ) Hiroaki Ohnishi Manabu Miyabe (Tohoku University) Keigo Mizutani (Research Center for Nuclear Physics)

Presentation materials