3 years ago

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

In this article, we tentatively assign the $Λ c ( 2860 )$, $Λ c ( 2880 )$, $Ξ c ( 3055 )$ and $Ξ c ( 3080 )$ to be the D-wave baryon states with the spin-parity $J P = 3 2 +$, $5 2 +$, $3 2 +$ and $5 2 +$, 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 $( L ρ , L λ ) = ( 0 , 2 )$, $( 2 , 0 )$ and $( 1 , 1 )$, respectively. The present predictions favor assigning the $Λ c ( 2860 )$, $Λ c ( 2880 )$, $Ξ c ( 3055 )$ and $Ξ c ( 3080 )$ to be the D-wave baryon states with the quantum numbers $( L ρ , L λ ) = ( 0 , 2 )$ and $J P = 3 2 +$, $5 2 +$, $3 2 +$ and $5 2 +$, respectively. While the predictions for the masses of the