The Λc(2860), Λc(2880), Ξc(3055) and Ξc(3080) as D-wave baryon states in QCD

In this article, we tentatively assign the Λc(2860), Λc(2880), Ξc(3055) and Ξc(3080) to be the D-wave baryon states with the spin-parity JP=32+, 52+, 32+ and 52+, respectively, and study their masses and pole residues with the QCD sum rules in a systematic way by constructing three-types interpolati...

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Bibliographic Details
Published in:Nuclear physics. B 2018-01, Vol.926 (C), p.467-490
Main Author: Wang, Zhi-Gang
Format: Article
Language:English
Online Access:Get full text
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Summary:In this article, we tentatively assign the Λc(2860), Λc(2880), Ξc(3055) and Ξc(3080) to be the D-wave baryon states with the spin-parity JP=32+, 52+, 32+ and 52+, respectively, and study their masses and pole residues with the QCD sum rules in a systematic way by constructing three-types interpolating currents with the quantum numbers (Lρ,Lλ)=(0,2), (2,0) and (1,1), respectively. The present predictions favor assigning the Λc(2860), Λc(2880), Ξc(3055) and Ξc(3080) to be the D-wave baryon states with the quantum numbers (Lρ,Lλ)=(0,2) and JP=32+, 52+, 32+ and 52+, respectively. While the predictions for the masses of the (Lρ,Lλ)=(2,0) and (1,1) D-wave Λc and Ξc states can be confronted to the experimental data in the future.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2017.11.014