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 2018Show all

5 papers · 1 filter

hep-ph2018★ 30 cited

Considerations on the Schmid theorem for triangle singularities

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

We investigate the Schmid theorem, which states that if one has a tree level mechanism with a particle decaying to two particles and one of them decaying posteriorly to two other p…

hep-ph2018★ 15 cited

$τ^{-} \to ν_{τ} M_{1} M_{2}$ , with $M_{1}, M_{2}$ pseudoscalar or vector mesons

L. R. Dai, R. Pavao, S. Sakai +1

We perform a calculation of the $τ^{-} \to ν_{τ} M_{1} M_{2}$ , with $M_{1}, M_{2}$ either pseudoscalar or vector mesons using the basic weak interaction and angular momentum algebra to relate…

hep-ph2018★ 27 cited

Anomalous enhancement of the isospin-violating $Λ (1405)$ production by a triangle singularity in $Λ_{c} \to π^{+} π^{0} π^{0} Σ^{0}$

L. R. Dai, R. Pavao, S. Sakai +1

The decay of $Λ_{c}^{+}$ into $π^{+} π^{0} Λ (1405)$ with the $Λ (1405)$ decay into $π^{0} Σ^{0}$ through a triangle diagram is studied. This process is initiated by $Λ_{c}^{+} \to π^{+} K ˉ^{*} N$ , t…

nucl-th2018★ 15 cited

Production of $N^{} (1535)$ and $N^{} (1650)$ in $Λ_{c} \to K ˉ^{0} η p$ $(π N)$ decay

R. Pavao, S. Sakai, E. Oset

In order to study the properties of the $N^{*}$ (1535) and $N^{*}$ (1650) we calculate the mass distributions of $M B$ in the $Λ_{c} \to K ˉ^{0} M B$ decay, with $MB=πN(I=1/2),ηp…

hep-ph2018★ 11 cited

Prediction of new states from $D^{()} B^{()} B ˉ^{(*)}$ three-body interactions

J. M. Dias, L. Roca, S. Sakai

We study three-body systems composed of $D^{(*)}$ , $B^{(*)}$ and $B ˉ^{(*)}$ in order to look for possible bound states or resonances. In order to solve the three-body problem,…

Considerations on the Schmid theorem for triangle singularities

τ−→ντ​M1​M2​, with M1​,M2​ pseudoscalar or vector mesons

Anomalous enhancement of the isospin-violating Λ(1405) production by a triangle singularity in Λc​→π+π0π0Σ0

Production of N∗(1535) and N∗(1650) in Λc​→Kˉ0ηp (πN) decay

Prediction of new states from D(∗)B(∗)Bˉ(∗) three-body interactions

$τ^{-} \to ν_{τ} M_{1} M_{2}$ , with $M_{1}, M_{2}$ pseudoscalar or vector mesons

Anomalous enhancement of the isospin-violating $Λ (1405)$ production by a triangle singularity in $Λ_{c} \to π^{+} π^{0} π^{0} Σ^{0}$

Production of $N^{} (1535)$ and $N^{} (1650)$ in $Λ_{c} \to K ˉ^{0} η p$ $(π N)$ decay

Prediction of new states from $D^{()} B^{()} B ˉ^{(*)}$ three-body interactions