Jing Song

activity

20242026

collaborators

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hep-ph2025

$a_{0} (980)$ 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 $π η$ …

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

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…

hep-ph2025

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…

hep-ph2025

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…

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-ph2025

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…

hep-ph2025

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…

hep-ph2025

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…

a0​(980) and f0​(980) excitation in the D+→π+ηη decay

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

Final state interaction in the Λb​→D+D−Λ, D0Ds−​p, Ds+​Ds−​Λ reactions

Molecular states with bottom mesons and multistrange baryons systems

Exotic multistrange-anticharm baryon systems

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

Testing the nature of the Σ∗(1430)

Determination of the K+Kˉ0 scattering length and effective range from the D+→Kˉ0π+η reaction

Searching for the 2+ partner of the Tcs0​(2870) in the B−→D−D0KS0​ reaction

Role of a0​(1710) in the Ds+​→ρ+ϕ, ρ+ω decays

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

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

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

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

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

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

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

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