期刊
EUROPEAN PHYSICAL JOURNAL C
卷 80, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-020-8320-0
关键词
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资金
- COFAAIPN (Mexico)
- Ministerio de Ciencia e Innovacion
- EU FEDER [FPA2016-77177-C2-2-P, PID2019-105439GB-C22, RED2018-102572-T]
We study two- and three-baryon systems with two units of charm looking for possible bound states or resonances. All two-baryon interactions are consistently derived from a constituent quark model tuned in the light-flavor hadron phenomenology: spectra and interactions. The presence of the heavy quarks makes the two-body interactions simpler than in the light-flavor sector. Our results show a narrow two-body resonance with quantum numbers (I, J(P)) = (0, 0(+)). It is located 6.2 MeV below the Sigma(c)Sigma(c) threshold and has a width of 4.7 MeV. The foregoing two-body state contributes to generate a N Sigma(c)Sigma(c) resonance with quantum numbers (I, J(P)) = (1/2, 1/2(+)) and a separation energy of 0.2 MeV.
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