Jing Song

The decay $η_{c} \to p p ˉ η$ with meson--baryon final-state interactions

Jing Song, Yu-Shan Ren, Eulogio Oset

We study the decay $η_c\to p\bar{p}η$ by combining the SU(3) flavor structure of the primary production with final-state interactions in the $pη$ and $\bar{p}η$ subsystems, u…

$K X (3872)$ interaction and correlation function

Jing Song, Pedro Brandao, Eulogio Oset

We investigate the $K X (3872)$ interaction and the corresponding correlation function, assuming the $X (3872)$ to be a molecular state of $D D ˉ^{*}$ and $D^{*} D ˉ$ with isospin…

Interaction and correlation functions for $π f_{1} (1285)$ , $η f_{1} (1285)$

Wen-Hao Jia, Hai-Peng Li, Wei-Hong Liang +2

We have studied the interaction of $π^{0} (η) f_{1} (1285)$ assuming the $f_{1} (1285)$ to be a molecular state of $K^{*} K ˉ - K ˉ^{*} K$ . We use a framework in which a $π^0 (η) f_1(128…

Correlation function and bound state from the $K D_{s 0}^{*} (2317)$ interaction

Wen-Hao Jia, Hai-Peng Li, Wei-Hong Liang +2

In anticipation of the new wave of ALICE experiments on particle-resonance correlation functions, we study the interaction of a kaon with the $D_{s 0}^{*} (2317)$ resonance. Assuming t…

Scattering data and correlation function for the $K f_{1} (1285)$ interaction

Wen-Hao Jia, Jing Song, Wei-Hong Liang +1

We study the interaction of a kaon with the $f_{1} (1285)$ resonance, assuming that the $f_{1} (1285)$ is a molecular state generated by the $K K ˉ^{*}, K ˉ K^{*}$ interaction, evaluat…

$a_{0} (980)$ and $f_{0} (980)$ excitation in the $D^{+} \to π^{+} η η$ decay

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

We have made a thorough study of the $D^{+} \to π^{+} η η$ reaction, recently measured by the BESIII collaboration, which shows an abnormal strength at high invariant masses in the $π η$ …

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…

Final state interaction in the $Λ_{b} \to D^{+} D^{-} Λ, D^{0} D_{s}^{-} p, D_{s}^{+} D_{s}^{-} Λ$ reactions

Jing Song, Melahat Bayar, Eulogio Oset

We study the three-body decays $Λ_b \to D^+ D^- Λ,~D^0D_s^- p,~D_s^+D_s^-Λ$, considering both internal and external emission mechanisms that produce various meson-baryon final st…

Molecular states with bottom mesons and multistrange baryons systems

Jing Song, Yi-Yao Li, Eulogio Oset

We investigate molecular states formed by bottom mesons and multistrange baryons from both octet and decuplet flavor representations, using the local hidden gauge approach combined…

Exotic multistrange-anticharm baryon systems

Jing Song, Eulogio Oset

We study exotic baryon systems composed of anticharmed mesons and strange baryons using the extended local hidden gauge approach. By solving the coupled-channel Bethe-Salpeter equa…

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…

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…

Determination of the $K^{+} K ˉ^{0}$ scattering length and effective range from the $D^{+} \to K ˉ^{0} π^{+} η$ reaction

Jing Song, Wei-Hong Liang, Eulogio Oset

We study the scattering parameters of the $K^+\bar{K}^0$ system through the analysis of the $D^+\to\bar{K}^0π^+η$ reaction, aiming at determining the scattering length $a$ an…

Searching for the $2^{+}$ partner of the $T_{cs 0} (2870)$ in the $B^{-} \to D^{-} D^{0} K_{S}^{0}$ reaction

Jing Song, Zi-Ying Yang, Eulogio Oset

We study the $B^{-} \to D^{-} D^{0} K_{S}^{0}$ reaction, recently analyzed by the LHCb collaboration, where a clear signal for the exotic $T_{cs 0} (2870)$ state has been reported. We call the…

Role of $a_{0} (1710)$ in the $D_{s}^{+} \to ρ^{+} ϕ, ρ^{+} ω$ decays

Jing Song, Zi-Ying Yang, Eulogio Oset

We look into the $D_{s}^{+} \to ρ^{+} ϕ$ and $D_{s}^{+} \to ρ^{+} ω$ weak decays recently measured by the BESIII collaboration, which proceed very differently in a first step of the weak decay…

$P_{c} (4440)$ 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…

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…

Photoproduction of the $Λ (1800)$

Melahat. Bayar, Jing Song, L. R. Dai +1

We have carried out a study of the $γ p \to p K^{+} K^{*-} (K^{*-} \to K^{-} π^{0})$ , $γ p \to p K^{+} K^{*-} (K^{*-} \to K ˉ^{0} π^{-})$ a…