Luis Roca

activity

20062026

most citedLambda(1405) poles obtained from pi0-Sigma0 photoproduction data

69 citations · 238 across the 15 of their papers we have counts for

collaborators

15 papers

hep-ph2026

Role of $a_{0} (1710)$ in the $J / ψ \to ρ^{+} ρ^{-} ω$ and $J / ψ \to γ ρ^{0} ω$ reactions

Wen-Tao Lyu, Luis Roca, Eulogio Oset

We investigate the strong decay $J / ψ \to ρ^{+} ρ^{-} ω$ and the radiative decay $J / ψ \to γ ρ^{0} ω$ , taking into account the $S$ -wave $K^{*} K ˉ^{*}$ , $ρ ω$ and $ρϕ$ final-state interactions, whic…

hep-ph2025

The $D_{s 1} (2460) \to D_{s} π^{+} π^{-}$ decay from a $D_{s 1}$ molecular perspective

L. Roca, J. M. Dias, E. Oset

We conduct a theoretical study of the $D_{s 1} (2460) \to D_{s} π^{+} π^{-}$ decay from the perspective that the $D_{s 1}$ is a molecular state, built mostly from the $D^{*} K$ and $D_s^* η…

hep-ph2024

Pentaquark molecular states with hidden bottom and double strangeness

Jing Song, Man-Yu Duan, Luis Roca +1

We investigate the meson-baryon interaction in coupled channels with the quantum numbers of the pentaquarks $P_{b ss}$ and $P_{b sss}$ . The interaction is derived from an extension o…

hep-ph2020★ 7 cited

Tau decay into $ν_{τ}$ and $a_{1} (1260)$ , $b_{1} (1235)$ , and two $K_{1} (1270)$

L. R. Dai, L. Roca, E. Oset

We study the $τ \to ν_{τ} A$ decay, with $A$ an axial-vector meson. We produce the $a_{1} (1260)$ and $b_{1} (1235)$ resonances in the Cabibbo favored mode and two $K_{1} (1270)$ states in 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-ph2016★ 21 cited

On the hidden charm pentaquark-s in $Λ_{b} \to J / ψ K^{-} p$ decay

L. Roca, E. Oset

In a previous work we presented a theoretical analysis of the $Λ_{b} \to J / ψ K^{-} p$ reaction from where a recent experiment by the LHCb collaboration at CERN claimed the existence of…

hep-ph2015★ 1 cited

The LHCb pentaquark as a $D ˉ^{} Σ_{c} - D ˉ^{} Σ_{c}^{*}$ molecular state

L. Roca, J. Nieves, E. Oset

We perform a theoretical analysis of the $Λ_{b} \to J / ψ K^{-} p$ reaction from where a recent LHCb experiment extracts a $Λ (1405)$ contribution in the $K^{-} p$ spectrum close to threshol…

hep-ph2014★ 19 cited

The composite nature of the $Λ (1520)$ resonance

F. Aceti, E. Oset, L. Roca

Recently, the Weinberg compositeness condition of a bound state was generalized to account for resonant states and higher partial waves. We apply this extension to the case of the…

hep-lat2013★ 1 cited

Finite volume treatment of $π π$ scattering in the $ρ$ channel

M. Albaladejo, G. Rios, J. A. Oller +1

We make a theoretical study of $π π$ scattering with quantum numbers $J^{P C} = 1^{--}$ in a finite box. To calculate physical observables for infinite volume from lattice QCD, the fin…

nucl-th2013★ 69 cited

Lambda(1405) poles obtained from pi0-Sigma0 photoproduction data

L. Roca, E. Oset

We present a strategy to extract the position of the two $Λ (1405)$ poles from experimental photoproduction data measured recently at different energies in the $γ p \to K^{+} π^{0} Σ^{0}$ …

hep-lat2012★ 29 cited

Finite volume treatment of pi pi scattering and limits to phase shifts extraction from lattice QCD

M. Albaladejo, J. A. Oller, E. Oset +2

We study theoretically the effects of finite volume for pipi scattering in order to extract physical observables for infinite volume from lattice QCD. We compare three different ap…

hep-lat2012★ 49 cited

Scattering of unstable particles in a finite volume: the case of pi rho scattering and the a1(1260) resonance

L. Roca, E. Oset

We present a way to evaluate the scattering of unstable particles quantized in a finite volume with the aim of extracting physical observables for infinite volume from lattice data…

hep-ph2010★ 1 cited

Scalar-Pseudoscalar scattering and pseudoscalar resonances

M. Albaladejo, J. A. Oller

The interactions between the f_0(980) and a_0(980) scalar resonances and the lightest pseudoscalar mesons are studied. We first obtain the interacting kernels, without including an…

hep-ph2009★ 3 cited

Asymmetry observables in e+ e- --> pi+ pi- gamma in the phi region within a chiral unitary approach

L. Roca, E. Oset

We make a theoretical study of the charge and forward-backward pion asymmetries in the e+e- --> pi+ pi- gamma process on and off the phi resonance energy. These observables are rat…

nucl-th2006★ 16 cited

Testing the nature of the $Λ (1520)$ resonance in proton-induced production

L. Roca, C. Hanhart, E. Oset +1

The $Λ (1520)$ resonance has been recently studied in a unitarized coupled channel formalism with $π Σ (1385)$ , $K Ξ (1530)$ , $K ˉ N$ and $π Σ$ as constituents blocks. We provide a th…

Role of a0​(1710) in the J/ψ→ρ+ρ−ω and J/ψ→γρ0ω reactions

The Ds1​(2460)→Ds​π+π− decay from a Ds1​ molecular perspective

Pentaquark molecular states with hidden bottom and double strangeness

Tau decay into ντ​ and a1​(1260), b1​(1235), and two K1​(1270)

On the binding of the BDDˉ and BDD systems

On the hidden charm pentaquark-s in Λb​→J/ψK−p decay

The LHCb pentaquark as a Dˉ∗Σc​−Dˉ∗Σc∗​ molecular state

The composite nature of the Λ(1520) resonance

Finite volume treatment of ππ scattering in the ρ channel

Lambda(1405) poles obtained from pi0-Sigma0 photoproduction data

Finite volume treatment of pi pi scattering and limits to phase shifts extraction from lattice QCD

Scattering of unstable particles in a finite volume: the case of pi rho scattering and the a1(1260) resonance

Scalar-Pseudoscalar scattering and pseudoscalar resonances

Asymmetry observables in e+ e- --> pi+ pi- gamma in the phi region within a chiral unitary approach

Testing the nature of the Λ(1520) resonance in proton-induced production

Role of $a_{0} (1710)$ in the $J / ψ \to ρ^{+} ρ^{-} ω$ and $J / ψ \to γ ρ^{0} ω$ reactions

The $D_{s 1} (2460) \to D_{s} π^{+} π^{-}$ decay from a $D_{s 1}$ molecular perspective

Tau decay into $ν_{τ}$ and $a_{1} (1260)$ , $b_{1} (1235)$ , and two $K_{1} (1270)$

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

On the hidden charm pentaquark-s in $Λ_{b} \to J / ψ K^{-} p$ decay

The LHCb pentaquark as a $D ˉ^{} Σ_{c} - D ˉ^{} Σ_{c}^{*}$ molecular state

The composite nature of the $Λ (1520)$ resonance

Finite volume treatment of $π π$ scattering in the $ρ$ channel

Testing the nature of the $Λ (1520)$ resonance in proton-induced production