Newly discovered $$\Xi _c^{0}$$ resonances and their parameters

نویسندگان

چکیده

The aim of the present article is investigation newly observed resonances $$\Xi _c(2923)^{0}$$ , _c(2939)^{0}$$ and _c(2965)^{0}$$ which are real candidates to charm-strange baryons. To this end, we calculate mass pole residue ground-state excited 1P 2S spin-1/2 flavor-sextet baryons _{c}^{\prime 0}$$ 0}(1/2^{-})$$ 0}(1/2^{+})$$ with quark content csd, respectively. masses residues spin-3/2 _{c}^{\star found as well. Spectroscopic parameters these particles computed in context QCD two-point sum rule method. Widths evaluated through their decays final states $$\Lambda _{c}^{+}K^{-}$$ $$ \Xi 0}\pi . These processes explored by means full light-cone method necessary determine strong couplings at relevant vertices. Obtained predictions for widths four baryons, well previous results flavor-antitriplet _c^{0}$$ confronted available experimental data on _{c}^{0}$$ fix quantum numbers. Our comparison demonstrates that can be considered excitations resonance _{c}(2965)^{0}$$ may interpreted state either or antitriplet baryon.

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ژورنال

عنوان ژورنال: The European Physical Journal A

سال: 2021

ISSN: ['1434-6001', '1434-601X']

DOI: https://doi.org/10.1140/epja/s10050-021-00523-7