V. R. Debastiani

activity

20162018

most citedA non-relativistic model for the

[cc] [c ˉ c ˉ]

tetraquark

153 citations · 565 across the 19 of their papers we have counts for

collaborators

19 papers

hep-ph2018★ 55 cited

Description of the $Ξ_{c}$ and $Ξ_{b}$ states as molecular states

Q. X. Yu, R. Pavao, V. R. Debastiani +1

In this work we study several $Ξ_{c}$ and $Ξ_{b}$ states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge appro…

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

Dynamical Hadrons

V. R. Debastiani, E. Oset, J. M. Dias +1

In this talk I briefly review the theory of resonances dynamically generated from hadron-hadron scattering, sometimes referred to as "molecules"S. I give some classical examples of…

hep-ph2018★ 29 cited

Doubly charmed $Ξ_{cc}$ molecular states from meson-baryon interaction

J. M. Dias, V. R. Debastiani, J. -Jun Xie +1

Stimulated by the new experimental LHCb findings associated with the $Ω_{c}$ states, some of which we have described in a previous work as being dynamically generated through meson-b…

hep-ph2018★ 15 cited

$Ω_{b}^{-} \to (Ξ_{c}^{+} K^{-}) π^{-}$ and the $Ω_{c}$ states

V. R. Debastiani, J. M. Dias, Wei-Hong Liang +1

We study the weak decay $Ω_{b}^{-} \to (Ξ_{c}^{+} K^{-}) π^{-}$ , in view of the narrow $Ω_{c}$ states recently measured by the LHCb collaboration and later confirmed by the Belle collabora…

hep-ph2018

Production and mixing of scalar mesons in $η_{c}$ and $χ_{c 1}$ decays

V. R. Debastiani, Wei-Hong Liang, Ju-Jun Xie +2

We briefly discuss how the chiral unitary approach in coupled channels and $S U (3)$ symmetry can be used to describe the production of $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$ in the $…

hep-ph2018★ 1 cited

Study of the $D K K$ and $D K K ˉ$ systems

V. R. Debastiani, J. M. Dias, E. Oset

Using the Fixed Center Approximation to Faddeev equations we have investigated the $D K K$ and $D K K ˉ$ three-body systems, considering that the $D_{s 0}^{*} (2317)$ acts as the heavy…

hep-ph2017★ 4 cited

Spectroscopy of the All-Charm Tetraquark

V. R. Debastiani, F. S. Navarra

We use a non-relativistic model to study the mass spectroscopy of a tetraquark composed by $c c ˉ c c ˉ$ quarks in the diquark-antidiquark picture. By numerically…

hep-ph2017★ 5 cited

The radiative decay $D^{0} \to K ˉ^{* 0} γ$ with vector meson dominance

J. M. Dias, V. R. Debastiani, Ju-Jun Xie +1

Motivated by the experimental measurements of $D^{0}$ radiative decay modes we have proposed a model to study the $D^{0} \to K ˉ^{* 0} γ$ decay, by establishing a link with $D^0\to \b…

hep-ph2017★ 31 cited

Molecular $Ω_{b}$ states

Wei-Hong Liang, J. M. Dias, V. R. Debastiani +1

Motivated by the recent finding of five $Ω_{c}$ states by the LHCb collaboration, and the successful reproduction of three of them in a recent approach searching for molecular states…

hep-ph2017★ 77 cited

Molecular $Ω_{c}$ states generated from coupled meson-baryon channels

V. R. Debastiani, J. M. Dias, W. H. Liang +1

We have investigated $Ω_{c}$ states that are dynamically generated from the meson-baryon interaction. We use an extension of the local hidden gauge to obtain the interaction from the…

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★ 11 cited

$a_{0} (980) - f_{0} (980)$ mixing in $χ_{c 1} \to π^{0} f_{0} (980) \to π^{0} π^{+} π^{-}$ and $χ_{c 1} \to π^{0} a_{0} (980) \to π^{0} π^{0} η$

M. Bayar, V. R. Debastiani

We study the isospin breaking in the reactions $χ_{c 1} \to π^{0} π^{+} π^{-}$ and $χ_{c 1} \to π^{0} π^{0} η$ and its relation to the $a_{0} (980) - f_{0} (980)$ mixing, which was measured by the B…

hep-ph2017

Production of $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$ in the $χ_{c 1} \to η π^{+} π^{-}$ and $η_{c} \to η π^{+} π^{-}$ decays

V. R. Debastiani, Wei-Hong Liang, Ju-Jun Xie +1

Using the chiral unitary approach in coupled channels and $S U (3)$ symmetry we describe the production of $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$ in the $χ_{c 1} \to η π^{+} π^{-}$ reaction…

hep-ph2017★ 153 cited

A non-relativistic model for the $[cc] [c ˉ c ˉ]$ tetraquark

V. R. Debastiani, F. S. Navarra

We use a non-relativistic model to study the spectroscopy of a tetraquark composed of $[cc] [c ˉ c ˉ]$ in a diquark-antidiquark configuration. By numerically solving the Schr…

hep-ph2017★ 27 cited

Study of the $D K K$ and $D K K ˉ$ systems

V. R. Debastiani, J. M. Dias, E. Oset

Using the Fixed Center Approximation to Faddeev equations we have investigated the $D K K$ and $D K K ˉ$ three-body systems, considering that the $D K$ dynamically generates, throug…

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 $γ p \to Δ (1700) \to π N (1535)$ .…

hep-ph2016★ 37 cited

Revising the $f_{1} (1420)$ resonance

V. R. Debastiani, F. Aceti, Wei-Hong Liang +1

We have studied the production and decay of the $f_{1} (1285)$ into $π a_{0} (980)$ and $K^{*} K ˉ$ as a function of the mass of the resonance and find a shoulder around 1400 MeV, tied t…

hep-ph2016★ 40 cited

Predictions for $η_{c} \to η π^{+} π^{-}$ producing $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$

V. R. Debastiani, Wei-Hong Liang, Ju-Jun Xie +1

We perform calculations for the $η_{c} \to η π^{+} π^{-}$ decay using elements of SU(3) symmetry to see the weight of different trios of pseudoscalars produced in this decay, prior to the…

Description of the Ξc​ and Ξb​ states as molecular states

Considerations on the Schmid theorem for triangle singularities

Dynamical Hadrons

Doubly charmed Ξcc​ molecular states from meson-baryon interaction

Ωb−​→(Ξc+​K−)π− and the Ωc​ states

Production and mixing of scalar mesons in ηc​ and χc1​ decays

Study of the DKK and DKKˉ systems

Spectroscopy of the All-Charm Tetraquark

The radiative decay D0→Kˉ∗0γ with vector meson dominance

Molecular Ωb​ states

Molecular Ωc​ states generated from coupled meson-baryon channels

On the binding of the BDDˉ and BDD systems

a0​(980)−f0​(980) mixing in χc1​→π0f0​(980)→π0π+π− and χc1​→π0a0​(980)→π0π0η

Production of f0​(500), f0​(980) and a0​(980) in the χc1​→ηπ+π− and ηc​→ηπ+π− decays

A non-relativistic model for the [cc][cˉcˉ] tetraquark

Study of the DKK and DKKˉ systems

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

Revising the f1​(1420) resonance

Predictions for ηc​→ηπ+π− producing f0​(500), f0​(980) and a0​(980)

Description of the $Ξ_{c}$ and $Ξ_{b}$ states as molecular states

Doubly charmed $Ξ_{cc}$ molecular states from meson-baryon interaction

$Ω_{b}^{-} \to (Ξ_{c}^{+} K^{-}) π^{-}$ and the $Ω_{c}$ states

Production and mixing of scalar mesons in $η_{c}$ and $χ_{c 1}$ decays

Study of the $D K K$ and $D K K ˉ$ systems

The radiative decay $D^{0} \to K ˉ^{* 0} γ$ with vector meson dominance

Molecular $Ω_{b}$ states

Molecular $Ω_{c}$ states generated from coupled meson-baryon channels

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

$a_{0} (980) - f_{0} (980)$ mixing in $χ_{c 1} \to π^{0} f_{0} (980) \to π^{0} π^{+} π^{-}$ and $χ_{c 1} \to π^{0} a_{0} (980) \to π^{0} π^{0} η$

Production of $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$ in the $χ_{c 1} \to η π^{+} π^{-}$ and $η_{c} \to η π^{+} π^{-}$ decays

A non-relativistic model for the $[cc] [c ˉ c ˉ]$ tetraquark

Study of the $D K K$ and $D K K ˉ$ systems

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

Revising the $f_{1} (1420)$ resonance

Predictions for $η_{c} \to η π^{+} π^{-}$ producing $f_{0} (500)$ , $f_{0} (980)$ and $a_{0} (980)$