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 2017Show all

8 papers · 1 filter

hep-ph2017★ 27 cited

Triangle singularity enhancing isospin violation in $B ˉ_{s}^{0} \to J / ψ π^{0} f_{0} (980)$

Wei-Hong Liang, S. Sakai, Ju-Jun Xie +1

We perform calculations for the $B ˉ_{s}^{0} \to J / ψ π^{0} f_{0} (980)$ and $B ˉ_{s}^{0} \to J / ψ π^{0} a_{0} (980)$ reactions, showing that the first one is isospin-suppressed while the second o…

hep-ph2017★ 21 cited

The role of the triangle singularity in $Λ (1405)$ production in the $π^{-} p \to K^{0} π Σ$ and $pp \to p K^{+} π Σ$ processes

M. Bayar, R. Pavao, S. Sakai +1

We have investigated the cross section for the $π^{-} p \to K^{0} π Σ$ and $pp \to p K^{+} π Σ$ reactions paying attention to a mechanism that develops a triangle singularity. Th…

hep-ph2017★ 22 cited

On the binding of the $B D D ˉ$ and $B D D$ systems

J. M. Dias, V. R. Debastiani, L. Roca +2

We study theoretically the $B D D ˉ$ and $B D D$ systems to see if they allow for possible bound or resonant states. The three-body interaction is evaluated implementing the Fixed…

hep-ph2017★ 28 cited

Abnormal isospin violation and $a_{0} - f_{0}$ mixing in the $D_{s}^{+} \to π^{+} π^{0} a_{0} (980) (f_{0} (980))$ reactions

S. Sakai, E. Oset, W. H. Liang

We have chosen the reactions $D_{s}^{+} \to π^{+} π^{0} a_{0} (980) (f_{0} (980))$ investigating the isospin violating channel $D_{s}^{+} \to π^{+} π^{0} f_{0} (980)$ . The reaction was chosen because by va…

hep-ph2017★ 28 cited

Triangle singularities in $B^{-} \to D^{* 0} π^{-} π^{0} η$ and $B^{-} \to D^{* 0} π^{-} π^{+} π^{-}$

R. Pavao, S. Sakai, E. Oset

The possible role of the triangle mechanism in the $B^{-}$ decay into $D^{* 0} π^{-} π^{0} η$ and $D^{* 0} π^{-} π^{+} π^{-}$ is investigated. In this process, the triangle singularity appears from th…

hep-ph2017★ 42 cited

Triangle singularities in $B^{-} \to K^{-} π^{-} D_{s 0}^{+}$ and $B^{-} \to K^{-} π^{-} D_{s 1}^{+}$

S. Sakai, E. Oset, A. Ramos

We study the appearance of structures in the decay of the $B^{-}$ into $K^{-} π^{-} D_{s 0}^{+} (2317)$ and $K^{-} π^{-} D_{s 1}^{+} (2460)$ final states by forming invariant mass distributions of $…

hep-ph2017★ 66 cited

Charm-beauty meson bound states from $B (B^{}) D (D^{})$ and $B (B^{}) D ˉ (D ˉ^{})$ interaction

S. Sakai, L. Roca, E. Oset

We evaluate the s-wave interaction of pseudoscalar and vector mesons with both charm and beauty to investigate the possible existence of molecular $B D$ , $B^{*} D$ , $B D^{*}$ , $B^{*} D^{*}$ , $…

hep-ph2017★ 28 cited

Role of a triangle singularity in the $π N (1535)$ contribution to $γ p \to p π^{0} η$

V. R. Debastiani, S. Sakai, E. Oset

We have studied the $γ p \to p π^{0} η$ reaction paying attention to the two main mechanisms at low energies, the $γ p \to Δ (1700) \to η Δ (1232)$ and the $γ p \to Δ (1700) \to π N (1535)$ .…

Triangle singularity enhancing isospin violation in Bˉs0​→J/ψπ0f0​(980)

The role of the triangle singularity in Λ(1405) production in the π−p→K0πΣ and pp→pK+πΣ processes

On the binding of the BDDˉ and BDD systems

Abnormal isospin violation and a0​−f0​ mixing in the Ds+​→π+π0a0​(980)(f0​(980)) reactions

Triangle singularities in B−→D∗0π−π0η and B−→D∗0π−π+π−

Triangle singularities in B−→K−π−Ds0+​ and B−→K−π−Ds1+​

Charm-beauty meson bound states from B(B∗)D(D∗) and B(B∗)Dˉ(Dˉ∗) interaction

Role of a triangle singularity in the πN(1535) contribution to γp→pπ0η

Triangle singularity enhancing isospin violation in $B ˉ_{s}^{0} \to J / ψ π^{0} f_{0} (980)$

The role of the triangle singularity in $Λ (1405)$ production in the $π^{-} p \to K^{0} π Σ$ and $pp \to p K^{+} π Σ$ processes

On the binding of the $B D D ˉ$ and $B D D$ systems

Abnormal isospin violation and $a_{0} - f_{0}$ mixing in the $D_{s}^{+} \to π^{+} π^{0} a_{0} (980) (f_{0} (980))$ reactions

Triangle singularities in $B^{-} \to D^{* 0} π^{-} π^{0} η$ and $B^{-} \to D^{* 0} π^{-} π^{+} π^{-}$

Triangle singularities in $B^{-} \to K^{-} π^{-} D_{s 0}^{+}$ and $B^{-} \to K^{-} π^{-} D_{s 1}^{+}$

Charm-beauty meson bound states from $B (B^{}) D (D^{})$ and $B (B^{}) D ˉ (D ˉ^{})$ interaction

Role of a triangle singularity in the $π N (1535)$ contribution to $γ p \to p π^{0} η$