E. Oset

activity

20092024

N^{*}

and

Λ^{*}

resonances with hidden charm above 4 GeV

459 citations · 1.8k across the 58 of their papers we have counts for

collaborators

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13 papers · 1 filter

hep-ph2024

$P_{c} (4440)$ and $P_{c} (4457)$ decay into $D ˉ Σ_{c}$ and $D ˉ Λ_{c}$ and the spin of the $P_{c}$ states

Zi-Ying Yang, Jing Song, Wei-Hong Liang +1

We address the issue of the width and spin assignment of the $P_{c} (4440)$ and $P_{c} (4457)$ pentaquark states. We calculate the partial decays widths of the particles into $J / ψ N$ , $\b…

hep-ph2024

Study of the exotic three-body $N D^{} K ˉ^{}$ system

Qing-Yu Zhai, Raquel Molina, Eulogio Oset +1

We have studied the $N D^{*} K ˉ^{*}$ system in the framework of the Fixed Center Approximation to the Faddeev equations, taking the exotic $D^{*} K ˉ^{*}$ system as the cluster a…

hep-ph2024

One or two poles for the $Ξ (1820)$ ?

R. Molina, Wei-Hong Liang, Chu-Wen Xiao +2

In this talk, we present a new interpretation for the recently observed $Ξ (1820)$ resonance. We recall that the chiral unitary approach for the interaction of pseudoscalar mesons w…

hep-ph2024

Searching for signals of an exotic $I = 1, J^{P} = 2^{+}$ state of $D^{} K^{}$ nature and the structure of the $P_{c} (4312)$ in the $Λ_{b} \to Σ_{c}^{++} D^{-} K^{-}$ reaction

Jing Song, Zi-Ying Yang, Eulogio Oset

This paper investigates the decay process $Λ_{b} \to Σ_{c}^{++} D^{-} K^{-}$ with the objective of finding a predicted molecular state with isospin $I = 1$ , $J^{P} = 2^{+}$ of $D^{*} K^{*}$ nature, pl…

hep-ph2024

Precise determination of the $η Λ$ scattering length and effective range and relationship to the $Λ (1670)$ resonance

Man-Yu Duan, Melahat Bayar, Eulogio Oset

We use the Belle data on the $K^{-} p$ mass distribution of the $Λ_{c}^{+} \to p K^{-} π^{+}$ reaction near the $η Λ$ threshold to determine the $η Λ$ scattering length and effective range. We…

hep-ph2024

Pentaquark molecular states with hidden bottom and double strangeness

Jing Song, Man-Yu Duan, Luis Roca +1

We investigate the meson-baryon interaction in coupled channels with the quantum numbers of the pentaquarks $P_{b ss}$ and $P_{b sss}$ . The interaction is derived from an extension o…

Pc​(4440) and Pc​(4457) decay into DˉΣc​ and DˉΛc​ and the spin of the Pc​ states

Study of the exotic three-body ND∗Kˉ∗ system

One or two poles for the Ξ(1820)?

Searching for signals of an exotic I=1,JP=2+ state of D∗K∗ nature and the structure of the Pc​(4312) in the Λb​→Σc++​D−K− reaction

Precise determination of the ηΛ scattering length and effective range and relationship to the Λ(1670) resonance

Pentaquark molecular states with hidden bottom and double strangeness

$P_{c} (4440)$ and $P_{c} (4457)$ decay into $D ˉ Σ_{c}$ and $D ˉ Λ_{c}$ and the spin of the $P_{c}$ states

Study of the exotic three-body $N D^{} K ˉ^{}$ system

One or two poles for the $Ξ (1820)$ ?

Searching for signals of an exotic $I = 1, J^{P} = 2^{+}$ state of $D^{} K^{}$ nature and the structure of the $P_{c} (4312)$ in the $Λ_{b} \to Σ_{c}^{++} D^{-} K^{-}$ reaction

Precise determination of the $η Λ$ scattering length and effective range and relationship to the $Λ (1670)$ resonance