R. Pavão

activity

20162020

Ξ_{c}

and

Ξ_{b}

states as molecular states

55 citations · 295 across the 17 of their papers we have counts for

collaborators

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15 papers · 1 filter

hep-ph2019

Charmed excited baryons with heavy-quark spin symmetry

L. Tolos, J. Nieves, R. Pavao

Recently five $Ω_{c}$ excited states have been reported by the LHCb Collaboration, four of them corroborated by Belle. The Belle Collaboration has also discovered in 2017 one excited…

hep-ph2019★ 40 cited

$Ξ_{c}$ and $Ξ_{b}$ excited states within a $SU (6)_{lsf} \times$ HQSS model

J. Nieves, R. Pavao, L. Tolos

We study odd parity $J = 1/2$ and $J = 3/2$ $Ξ_{c}$ resonances using a unitarized coupled-channel framework based on a $SU (6)_{lsf} \times$ HQSS-extended Weinberg-Tomozawa baryon…

hep-ph2019★ 25 cited

On the nature of the lowest-lying odd parity charmed baryon $Λ_{c} (2595)$ and $Λ_{c} (2625)$ resonances

Juan Nieves, Rafael Pavao

We study the structure of the $Λ_{c} (2595)$ and $Λ_{c} (2625)$ resonances in the framework of an effective field theory consistent with heavy quark spin and chiral symmetries, that inco…

hep-ph2019

$Λ_{b}$ decays into $Λ_{c}^{} ℓ ν ˉ_{ℓ}$ and $Λ_{c}^{} π^{-}$ $[Λ_{c}^{*} = Λ_{c} (2595)$ \& $Λ_{c} (2625)]$ and heavy quark spin symmetry

J. Nieves, R. Pavao, S. Sakai

We study the implications for $Λ_{b} \to Λ_{c}^{*} ℓ ν ˉ_{ℓ}$ and $Λ_{b} \to Λ_{c}^{*} π^{-}$ $[Λ_{c}^{*} = Λ_{c} (2595)$ and $Λ_{c} (2625)]$ decays that can be deduced from heavy quark spin symmetry (HQ…

hep-ph2018★ 1 cited

$Ω_{c}$ excited states: a molecular approach with heavy-quark spin symmetry

Laura Tolos, Rafael Pavao, Juan Nieves

The LHCb Collaboration has recently discovered five excited $Ω_{c}$ states with masses between 3 and 3.1 GeV, four of them corroborated by the Belle Collaboration. We analyse the dyn…

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

$Ω_{c}$ excited states with heavy-quark spin symmetry

Laura Tolos, Rafael Pavao, Juan Nieves

We study the $C = 1$ , $S = - 2$ , $I = 0$ sector, where five excited $Ω_{c}$ states have been recently observed by the LHCb Collaboration. We start from a recently developed unitarized baryo…

hep-ph2018★ 42 cited

Coupled channels dynamics in the generation of the $Ω (2012)$ resonance

R. Pavao, E. Oset

We look into the newly observed $Ω (2012)$ state from the molecular perspective in which the resonance is generated from the $K ˉ Ξ^{*}$ , $η Ω$ and $K ˉ Ξ$ channels. We find th…

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-ph2017

Calculation of the ratios and absolute rates of the $Ξ_{b}^{-} \to π^{-} (D_{s}^{-}) Ξ_{c}^{0} (2790) (Ξ_{c}^{0} (2815))$ and $Ξ_{b}^{-} \to ν ˉ_{l} l Ξ_{c}^{0} (2790) (Ξ_{c}^{0} (2815))$ decays

R. Pavao, W-H Liang, J. Nieves +1

In this work we calculate the ratios of rates of the $Ξ_{b}$ nonleptonic and semileptonic decays into the $Ξ_{c}$ (2790) and $Ξ_{c}$ (2815) ( $Ξ_{c}^{*}$ ) resonances. These resonances are dynam…

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★ 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★ 3 cited

Predictions for $Ξ_{b}^{-} \to π^{-} (D_{s}^{-}) Ξ_{c}^{0} (2790) (Ξ_{c}^{0} (2815))$ and $Ξ_{b}^{-} \to ν ˉ_{l} l Ξ_{c}^{0} (2790) (Ξ_{c}^{0} (2815))$

R. P. Pavao, W. H. Liang, J. Nieves +1

We have performed the calculations for the nonleptonic $Ξ_{b}^{-} \to π^{-} Ξ_{c}^{0} (2790) (J = \frac{1}{2})$ and $Ξ_b^- \rightarrow π^- \ Ξ_c^0 (2815) \left(J=\frac{3}{…

hep-ph2016★ 11 cited

Momentum correlations of scattered particles in quantum field theory: one-loop entanglement generation

Ricardo Faleiro, Rafael Pavão, Helder Alexander +3

We compute the entanglement entropy variation between initial (separable or entangled in the momenta) and final states $Δ S_{E}$ in an elastic scattering of a bipartite system compose…

Charmed excited baryons with heavy-quark spin symmetry

Ξc​ and Ξb​ excited states within a SU(6)lsf​×HQSS model

On the nature of the lowest-lying odd parity charmed baryon Λc​(2595) and Λc​(2625) resonances

Λb​ decays into Λc∗​ℓνˉℓ​ and Λc∗​π− [Λc∗​=Λc​(2595) \& Λc​(2625)] and heavy quark spin symmetry

Ωc​ excited states: a molecular approach with heavy-quark spin symmetry

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

Ωc​ excited states with heavy-quark spin symmetry

Coupled channels dynamics in the generation of the Ω(2012) resonance

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

Calculation of the ratios and absolute rates of the Ξb−​→π−(Ds−​) Ξc0​(2790)(Ξc0​(2815)) and Ξb−​→νˉl​l Ξc0​(2790)(Ξc0​(2815)) decays

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

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

Predictions for Ξb−​→π−(Ds−​) Ξc0​(2790)(Ξc0​(2815)) and Ξb−​→νˉl​l Ξc0​(2790)(Ξc0​(2815))