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Tanida, Kiyoshi; Belle Collaboration*
Hadron Spectroscopy and Structure; Proceedings of the 18th International Conference (HADRON 2019), p.183 - 187, 2020/08
meson in nuclear matter from simulated pA reactionsGubler, P.
Hadron Spectroscopy and Structure; Proceedings of the 18th International Conference (HADRON 2019), p.694 - 698, 2020/08
Based on my recent research, I will explain about my numerical simulation of pA reactions (p: proton, A: nucleus), which are used to study the meson in nuclear matter. I will particularly focus on the question of how the modification of the meson spectral function in nuclear matter influences the experimentally observed di-lepton spectrum.
Takeuchi, Sachiko*; Giachino, A.*; Takizawa, Makoto*; Santopinto, E.*; Oka, Makoto
Hadron Spectroscopy and Structure; Proceedings of the 18th International Conference (HADRON 2019), p.333 - 337, 2020/08
Pentaquarks with 
or 
heavy quarks are very much interesting. We analyze the strange pentaquark with or in the coupled-channel quark cluster model. We find bound, resonance and cusp like states.
Yoshida, Junya
no journal, ,
Double 
hypernuclei and 
hypernuclei, collectively called "double hypernuclei", have come to play important roles in hadron nuclear physics as valuable information sources of baryon-baryon interaction. The most effective method to investigate them is event-by-event analysis with photographic emulsion sheets. An emulsion experiment to detect double hypernuclei has been performed in the J-PARC hadron facility in 2016-17. By this experiment, quantitative data on 
or 
interaction in a nucleus are being accumulated successfully. A new nuclide of double hypernucleus, 
Be, was observed. Several other interesting events have been found and further event search is going on.
