Li-Sheng Geng

most citedThe radiative decay of the

Λ (1405)

and its two-pole structure

34 citations · 35 across the 2 of their papers we have counts for

collaborators

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6 papers · 1 filter

hep-ph2008★ 222 cited

Vector meson-vector meson interaction in a hidden gauge unitary approach

L. S. Geng, E. Oset

The formalism developed recently to study vector meson--vector meson interaction, and applied to the case of $ρρ$ , is extended to study the interaction of the nonet of vector meson…

hep-ph2008★ 3 cited

Testing the nature of the $Λ$ (1520) in the $J / ψ \to Λ ˉ K^{-} p$ and $J / ψ \to Λ ˉ π^{+} π^{-} Λ$ reactions

L. S. Geng, E. Oset, B. S. Zou

We study the reactions $J / ψ \to Λ ˉ K^{-} p$ and $J / ψ \to Λ ˉ π^{+} π^{-} Λ$ with a unitary chiral approach. We predict the ratio of the invariant mass distributions of these two reactions at…

hep-ph2008★ 27 cited

Role of the $N^{*}$ (1535) in the $J / ψ \to p ˉ η p$ and $J / ψ \to p ˉ K^{+} Λ$ reactions

L. S. Geng, E. Oset, B. S. Zou +1

We study the $J / ψ \to p ˉ η p$ and $J / ψ \to p ˉ K^{+} Λ$ reactions with a unitary chiral approach. We find that the unitary chiral approach, which generates the $N^{*} (1535)$ dynamic…

hep-ph2008★ 1 cited

Chiral perturbation theory study of the axial $N \to Δ (1232)$ transition

L. S. Geng, J. Martin Camalich, L. Alvarez-Ruso +1

We have performed a theoretical study of the axial Nucleon to Delta(1232) ( $N \to Δ$ ) transition form factors up to one-loop order in covariant baryon chiral perturbation theory with…

hep-ph2007★ 34 cited

The radiative decay of the $Λ (1405)$ and its two-pole structure

L. S. Geng, E. Oset, M. Doring

We evaluate theoretically the radiative decay widths into $γ Λ$ and $γ Σ^{0}$ of the two poles of the $Λ (1405)$ found in chiral unitary theories and we find quite different results for…

hep-ph2006★ 85 cited

Clues for the existence of two $K_{1} (1270)$ resonances

L. S. Geng, E. Oset, L. Roca +1

The axial vector meson $K_{1} (1270)$ was studied within the chiral unitary approach, where it was shown that it has a two-pole structure. We reanalyze the high-statistics WA3 experim…

Vector meson-vector meson interaction in a hidden gauge unitary approach

Testing the nature of the Λ(1520) in the J/ψ→ΛˉK−p and J/ψ→Λˉπ+π−Λ reactions

Role of the N∗(1535) in the J/ψ→pˉ​ηp and J/ψ→pˉ​K+Λ reactions

Chiral perturbation theory study of the axial N→Δ(1232) transition

The radiative decay of the Λ(1405) and its two-pole structure

Clues for the existence of two K1​(1270) resonances

Testing the nature of the $Λ$ (1520) in the $J / ψ \to Λ ˉ K^{-} p$ and $J / ψ \to Λ ˉ π^{+} π^{-} Λ$ reactions

Role of the $N^{*}$ (1535) in the $J / ψ \to p ˉ η p$ and $J / ψ \to p ˉ K^{+} Λ$ reactions

Chiral perturbation theory study of the axial $N \to Δ (1232)$ transition

The radiative decay of the $Λ (1405)$ and its two-pole structure

Clues for the existence of two $K_{1} (1270)$ resonances