S. Sakai

activity

20122023

most citedThreshold cusps and triangle singularities in hadronic reactions

306 citations · 958 across the 37 of their papers we have counts for

collaborators

Showing 2019Show all

6 papers · 1 filter

hep-ph2019★ 8 cited

$J / ψ \to γ π π$ , $γ π^{0} η$ reactions and the $f_{0} (980)$ and $a_{0} (980)$ resonances

S. Sakai, Wei-Hong Liang, G. Toledo +1

We study the $J / ψ \to γ π^{+} π^{-}$ , $γ π^{0} η$ reactions from the perspective that they come from the $J / ψ \to ϕ (ω) π^{+} π^{-}, ρ^{0} π^{0} η$ reactions, where the $ρ^{0}$ , $ω$ , and $ϕ$ get convert…

hep-ph2019★ 23 cited

Triangle singularities in $J / ψ \to η π^{0} ϕ$ and $π^{0} π^{0} ϕ$

Hao-Jie Jing, Shuntaro Sakai, Feng-Kun Guo +1

The BESIII Collaboration recently reported the observation of the $a_{0} (980)^{0} - f_{0} (980)$ mixing in the isospin breaking decay $J / ψ \to η π^{0} ϕ$ . In the Dalitz plot for that decay with…

hep-ph2019★ 72 cited

Decays of $P_{c}$ into $J / ψ N$ and $η_{c} N$ with heavy quark spin symmetry

Shuntaro Sakai, Hao-Jie Jing, Feng-Kun Guo

We investigate the consequences of heavy quark spin symmetry (HQSS) on hidden-charm pentaquark $P_{c}$ states. As has been proposed before, assuming the $P_{c} (4440)$ and the $P_c(4457…

hep-ph2019★ 12 cited

The $χ_{c J}$ decay to $ϕ K^{*} K ˉ, ϕ h_{1} (1380)$ testing the nature of axial vector meson resonances

Sheng-Juan Jiang, S. Sakai, Wei-Hong Liang +1

We perform a theoretical study of the $χ_{c J} \to ϕ K^{*} K ˉ \to ϕ K π K ˉ$ reaction taking into account the $K^{*} K ˉ$ final state interaction, which in the chiral unitary appr…

hep-ph2019★ 13 cited

Theoretical description of the $J / ψ \to η (η^{'}) h_{1} (1380)$ , $J / ψ \to η (η^{'}) h_{1} (1170)$ and $J / ψ \to π^{0} b_{1} (1235)^{0}$ reactions

Wei-Hong Liang, S. Sakai, E. Oset

We have made a study of the $J / ψ \to η^{'} h_{1}, η h_{1}$ (with $h_{1}$ being $h_{1} (1170)$ and $h_{1} (1380)$ ) and $J / ψ \to π^{0} b_{1} (1235)^{0}$ assuming the axial vector mesons to be dynamically gen…

hep-ph2019

$Λ_{b}$ decays into $Λ_{c}^{} ℓ ν ˉ_{ℓ}$ and $Λ_{c}^{} π^{-}$ $[Λ_{c}^{*} = Λ_{c} (2595)$ \& $Λ_{c} (2625)]$ and heavy quark spin symmetry

J. Nieves, R. Pavao, S. Sakai

We study the implications for $Λ_{b} \to Λ_{c}^{*} ℓ ν ˉ_{ℓ}$ and $Λ_{b} \to Λ_{c}^{*} π^{-}$ $[Λ_{c}^{*} = Λ_{c} (2595)$ and $Λ_{c} (2625)]$ decays that can be deduced from heavy quark spin symmetry (HQ…

J/ψ→γππ, γπ0η reactions and the f0​(980) and a0​(980) resonances

Triangle singularities in J/ψ→ηπ0ϕ and π0π0ϕ

Decays of Pc​ into J/ψN and ηc​N with heavy quark spin symmetry

The χcJ​ decay to ϕK∗Kˉ,ϕh1​(1380) testing the nature of axial vector meson resonances

Theoretical description of the J/ψ→η(η′)h1​(1380), J/ψ→η(η′)h1​(1170) and J/ψ→π0b1​(1235)0 reactions