Jing Song

activity

20232025

collaborators

6 papers

hep-ph2025

Revisiting the $Λ_{c}^{+} \to K ˉ^{0} η p$ reaction: the role of $N^{} (1535), N^{} (1650)$ and $Σ (1620)$

Jing Song, Melahat Bayar, Yi-Yao Li +1

We perform a theoretical study of the weak decay $Λ_{c}^{+} \to K ˉ^{0} η p$ using a coupled-channel chiral unitary approach that incorporates both pseudoscalar-baryon and vec…

hep-ph2025

The $Λ_{c}^{+} \to Λ π^{+} π^{+} π^{-}$ reaction, and a triangle singularity producing the $Σ^{*} (1430)$ state

Yi-Yao Li, Jing Song, Eulogio Oset +2

We study the decay $Λ_{c}^{+} \to Λ π^{+} π^{+} π^{-}$ , focusing on the production of the $Σ^{*} (1430)$ resonance observed by the Belle Collaboration. Interpreted as a dynamically generated sta…

hep-ph2025

Testing the nature of the $Σ^{*} (1430)$

Jia-Xin Lin, Jing Song, Miguel Albaladejo +2

We study the feasibility of having the $Σ^{*} (1430)$ state, predicted within the chiral unitary approach and recently reported by the Belle Collaboration, as corresponding to a state…

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

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…

hep-ph2023

$B^{+}$ decay to $K^{+} η η$ with ( $η η$ ) from the $D D ˉ (3720)$ bound state

Pedro C. S. Brandão, Jing Song, Luciano M. Abreu +1

We search for a $B$ decay mode where one can find a peak for a $D D ˉ$ bound state predicted in effective theories and in Lattice QCD calculations, which has also been claimed…

Revisiting the Λc+​→Kˉ0ηp reaction: the role of N∗(1535), N∗(1650) and Σ(1620)

The Λc+​→Λπ+π+π− reaction, and a triangle singularity producing the Σ∗(1430) state

Testing the nature of the Σ∗(1430)

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

Pentaquark molecular states with hidden bottom and double strangeness

B+ decay to K+ηη with (ηη) from the DDˉ(3720) bound state

Revisiting the $Λ_{c}^{+} \to K ˉ^{0} η p$ reaction: the role of $N^{} (1535), N^{} (1650)$ and $Σ (1620)$

The $Λ_{c}^{+} \to Λ π^{+} π^{+} π^{-}$ reaction, and a triangle singularity producing the $Σ^{*} (1430)$ state

Testing the nature of the $Σ^{*} (1430)$

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

$B^{+}$ decay to $K^{+} η η$ with ( $η η$ ) from the $D D ˉ (3720)$ bound state