Σ<sub>c</sub><sup>(*)</sup>N dibaryon resonances in the phenomenological potential model
ORAL
Abstract
Two-body Jπ = 0+,1+, and 2+ resonance states of the Yc (=Λc, Σc, or Σ*c) and N systems are analyzed by the use of the complex scaling method. We employ the YcN phenomenological potentials, which are composed of the long-range meson-exchange force and the short-range quark exchange force. We find four Feshbach-type resonance states slightly below the ΣcN, or Σ*cN threshold. It is found that the four resonances form two pairs of the heavy-quark doublets in agreement with the heavy quark spin symmetry.
*S. M. was supported by the RIKEN Junior Research Associate Program. This work was supported in part by JSPS (Grant No. JP25247036) and by NNSFC (Grant No. 11275115)
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Presenters
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Makoto Oka
- ASRC, JAEA
- JAEA
- Tokyo Tech & JAEA