Hidden-charm and bottom meson-baryon molecules coupled with five-quark states
作者： Yasuhiro Yamaguchi , Alessandro Giachino , Atsushi Hosaka , Elena Santopinto , Sachiko Takeuchi
DOI: 10.1103/PHYSREVD.96.114031
关键词:
摘要: In this paper, we investigate the hidden-charm pentaquarks as ${\overline{D}}^{(*)}{\mathrm{\ensuremath{\Lambda}}}_{\mathrm{c}}$ and ${\overline{D}}^{(*)}{\mathrm{\ensuremath{\Sigma}}}_{\mathrm{c}}^{(*)}$ molecules coupled to five-quark states. Furthermore, extend our calculations hidden-bottom sector. The coupling states is treated short range potential, where relative strength for meson-baryon channels determined by structure of We found that resonant and/or bound appear in both charm bottom sectors. state potential turned out be attractive and, reason, it plays an important role produce these sector, need addition pion exchange producing states, whereas, interaction strong enough Thus, from investigation, emerges are more likely form than their counterparts; suggest experimentalists should look
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