Yi-Yao Li

collaborators

3 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-ph2024

The pole structures of the $X (1840) / X (1835)$ and the $X (1880)$

Peng-Yu Niu, Zhen-Yu Zhang, Yi-Yao Li +2

Whether the $N N ˉ$ interaction could form a state or not is a long standing question, even before the observation of the $p p ˉ$ threshold enhancement in 2003. The recent hi…

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

The pole structures of the X(1840)/X(1835) and the X(1880)

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

The pole structures of the $X (1840) / X (1835)$ and the $X (1880)$