S. Sakai

activity

20122023

most citedAbnormal isospin violation and

a_{0} - f_{0}

mixing in the

D_{s}^{+} \to π^{+} π^{0} a_{0} (980) (f_{0} (980))

reactions

28 citations · 87 across the 8 of their papers we have counts for

collaborators

Showing hep-phShow all

24 papers · 1 filter

hep-ph2021

Investigation of the $X (4020)$ peak in the $D^{} D ˉ^{}$ and $π h_{c}$ channels

Shuntaro Sakai

In this paper, the nature of $X (4020)$ observed in the vicinity of the $D^{*} D ˉ^{*}$ threshold of the $π h_{c}$ and $D^{*} D ˉ^{*}$ distributions is studied. Using a model containing on…

hep-ph2020

Possible precise measurements of the $X (3872)$ mass with the $e^{+} e^{-} \to π^{0} γ X (3872)$ and $p p ˉ \to γ X (3872)$ reactions

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

It was recently proposed that the $X (3872)$ binding energy, the difference between the $D^{0} D ˉ^{* 0}$ threshold and the $X (3872)$ mass, can be precisely determined by measuring t…

hep-ph2020

Extraction of $N D$ scattering lengths from the $Λ_{b} \to π^{-} p D^{0}$ decay and properties of the $Σ_{c} (2800)^{+}$

Shuntaro Sakai, Feng-Kun Guo, Bastian Kubis

The isovector and isoscalar $N D$ $s$ -wave scattering lengths are extracted by fitting to the LHCb data of the $p D^{0}$ invariant-mass distribution in the decay $Λ_b\rightarrowπ^-pD^0…

hep-ph2020

Triangle singularity in the $B^{-} \to K^{-} π^{0} X (3872)$ reaction and sensitivity to the $X (3872)$ mass

Shuntaro Sakai, Eulogio Oset, Feng-Kun Guo

We have done a study of the $B^{-} \to K^{-} π^{0} X (3872)$ reaction by means of a triangle mechanism via the chain of reactions: $B^{-} \to K^{-} D^{* 0} D ˉ^{* 0}$ ; $D^{* 0} \to π^{0} D^{0}$ ; $…

hep-ph2020

Role of the triangle mechanism in the $Λ_{b} \to Λ_{c} π^{-} f_{0} (980)$ reaction

Shuntaro Sakai

We investigate the $Λ_{b} \to Λ_{c} π^{-} f_{0} (980)$ production with a $f_{0} (980)$ decay into $π^{+} π^{-}$ via the $K^{* 0} K^{-} K^{+}$ and $K^{*-} K^{0} K ˉ^{0}$ triangle loops. These loops produce a pea…

hep-ph2020

Threshold cusps and triangle singularities in hadronic reactions

Feng-Kun Guo, Xiao-Hai Liu, Shuntaro Sakai

The spectrum of hadrons is the manifestation of color confinement of quantum chromodynamics. Hadronic resonances correspond to poles of the S-matrix. Since 2003, lots of new hadron…

Investigation of the X(4020) peak in the D∗Dˉ∗ and πhc​ channels

Possible precise measurements of the X(3872) mass with the e+e−→π0γX(3872) and ppˉ​→γX(3872) reactions

Extraction of ND scattering lengths from the Λb​→π−pD0 decay and properties of the Σc​(2800)+

Triangle singularity in the B−→K−π0X(3872) reaction and sensitivity to the X(3872) mass

Role of the triangle mechanism in the Λb​→Λc​π−f0​(980) reaction

Threshold cusps and triangle singularities in hadronic reactions

Investigation of the $X (4020)$ peak in the $D^{} D ˉ^{}$ and $π h_{c}$ channels

Possible precise measurements of the $X (3872)$ mass with the $e^{+} e^{-} \to π^{0} γ X (3872)$ and $p p ˉ \to γ X (3872)$ reactions

Extraction of $N D$ scattering lengths from the $Λ_{b} \to π^{-} p D^{0}$ decay and properties of the $Σ_{c} (2800)^{+}$

Triangle singularity in the $B^{-} \to K^{-} π^{0} X (3872)$ reaction and sensitivity to the $X (3872)$ mass

Role of the triangle mechanism in the $Λ_{b} \to Λ_{c} π^{-} f_{0} (980)$ reaction