L. Dai

We develop a model to reproduce the mass distributions of pairs of mesons in the Cabibbo-suppressed $D_{s}^{+} \to K^{+} π^{+} π^{-}$ decay. The largest contributions to the process comes fr…

hep-ph2023★ 1 cited

Evolution of genuine states to molecular ones: The $T_{cc} (3875)$ case

L. R. Dai, J. Song, E. Oset

We address the issue of the compositeness of hadronic states and demonstrate that starting with a genuine state of nonmolecular nature, but which couples to some meson-meson compon…

hep-ph2022★ 47 cited

How much is the compositeness of a bound state constrained by $a$ and $r_{0}$ ? The role of the interaction range

Jing Song, L. R. Dai, E. Oset

We present an approach that allows one to obtain information on the compositeness of molecular states from combined information of the scattering length of the hadronic components,…

hep-ph2021★ 32 cited

The $D_{s}^{+} \to π^{+} K_{s}^{0} K_{s}^{0}$ reaction \\and the $I = 1$ partner of the $f_{0} (1710)$ state

L. R. Dai, E. Oset, L. S. Geng

We have identified the decay modes of the $D_{s}^{+} \to π^{+} K^{+} K^{-}, π^{+} K_{s}^{0} K_{s}^{0}$ reactions producing two vector mesons and one pseudoscalar. The posterior vector-vector interact…

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…

hep-ph2016★ 69 cited

The " $a_{1} (1420)$ " peak as the $π f_{0} (980)$ decay mode of the $a_{1} (1260)$

F. Aceti, L. R. Dai, E. Oset

We study the decay mode of the $a_{1} (1260)$ into a $π^{+}$ in p-wave and the $f_{0} (980)$ that decays into $π^{+} π^{-}$ in s-wave. The mechanisms proceeds via a triangular mechanism where…

hep-ph2014★ 86 cited

The low lying scalar resonances in the $D^{0}$ decays into $K_{s}^{0}$ and $f_{0} (500)$ , $f_{0} (980)$ , $a_{0} (980)$

Ju-Jun Xie, L. R. Dai, E. Oset

The $D^{0}$ decay into $K_{s}^{0}$ and a scalar resonance, $f_{0} (500)$ , $f_{0} (980)$ , $a_{0} (980)$ , is studied obtaining the scalar resonances from final state interaction of a pair of mesons…

hep-ph2013★ 8 cited

Meson baryon components in the states of the baryon decuplet

F. Aceti, L. R. Dai, L. S. Geng +2

We apply an extension of the Weinberg compositeness condition on partial waves of $L = 1$ and resonant states to determine the weight of meson-baryon component in the $Δ (1232)$ reson…

Photoproduction of the Λ(1800)

The Ds+​→K+π+π− reaction and the scalar f0​(500), f0​(980) and K0∗​(700) resonances

Evolution of genuine states to molecular ones: The Tcc​(3875) case

How much is the compositeness of a bound state constrained by a and r0​? The role of the interaction range

The Ds+​→π+Ks0​Ks0​ reaction \\and the I=1 partner of the f0​(1710) state

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

The "a1​(1420)" peak as the πf0​(980) decay mode of the a1​(1260)

The low lying scalar resonances in the D0 decays into Ks0​ and f0​(500), f0​(980), a0​(980)