$pi J/psi-Dbar{D}^ast$ interaction by meson and quark exchanges

Yamaguchi, Yasuhiro ; Abe, Yukihiro*; Hosaka, Atsushi

reported in 2013 is one of the interesting exotic hadrons. The lattice QCD simulation by the HALQCD collaboration studies the $pi J/psi-Dbar{D}^ast$ potential that is realized as a charm-quark exchange force. HALQCD also find that the strong contribution from the $pi J/psi-Dbar{D}^ast$ potential generates a cusp structure near the energy region, where was observed. However the charm-quark exchange force itself has not been understood well. We investigate the nature of the $pi J/psi-Dbar{D}^ast$ potential by employing the meson-exchange and quark-exchange models.

Language	:	Japanese
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Meeting title	:	日本物理学会第77回年次大会(2022年)
Held date	:	2022/03
Location (city)	:	岡山(online)
Location (country)	:	日本
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Keywords	:	no keyword
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Registration No. : BB20211327
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