The 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:msubsup><mml:mi>a</mml:mi><mml:mn>0</mml:mn><mml:mo>−</mml:mo></mml:msubsup><mml:mi>η</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math>
 reaction in an effective Lagrangian model

Wang, Ke; Liu, Bochao

doi:10.1103/physrevc.107.025203

Phys. Rev. C

2023

DOI: 10.1103/physrevc.107.025203

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The π−p→a0−ηp reaction in an effective Lagrangian model

Ke Wang

Bochao Liu²

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2024

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Cited by 2 publications

References 40 publications

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Theoretical study of the π+p→pa0+ϕ reaction

Xu,

Li,

Luo

et al. 2024

Phys. Rev. D

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We study the production of hyperon resonances in the π+p→pa0+ϕ reaction within an effective Lagrangian approach. The model includes the production of Δ(1940) and Δ(1920) in the intermediate state excited by the ρ and p exchanges between the initial proton and π meson. Because of the large contribution of ρ exchange in Δ(1940) production, Δ(1940) is found to be a significant contribution near the threshold in this reaction. We provide total and differential cross section predictions for the reaction and discuss the possible influence of model parameters, off-shell effects, and branching ratios for Δ(1940)→pa0 and Δ(1920)→pa0 decays, which will be useful in future experimental studies. This reaction can provide a platform for studying the features of Δ(1940) resonance, especially the coupling to the pa0 channel. Published by the American Physical Society 2024

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Theoretical study of the π+p→pa0+ϕ reaction

Xu,

Li,

Luo

et al. 2024

Phys. Rev. D

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The theoretical study of $$p\bar{p}\rightarrow \bar{\Lambda }\Sigma \eta $$ reaction

Xu,

Li,

Luo

et al. 2024

Eur. Phys. J. C

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We study the production of hyperon resonances in the $$p\bar{p}\rightarrow \bar{\Lambda }\Sigma \eta $$ p p ¯ → Λ ¯ Σ η reaction within an effective Lagrangian approach. The model includes the production of $$\Sigma (1750)$$ Σ ( 1750 ) and $$\Lambda (1670)$$ Λ ( 1670 ) in the intermediate state excited by the K and $$K^*$$ K ∗ meson exchanges between the initial proton and antiproton. Due to the large coupling of $$\Sigma (1750)\Sigma \eta $$ Σ ( 1750 ) Σ η vertex, $$\Sigma (1750)$$ Σ ( 1750 ) is found a significant contribution near the threshold in this reaction. We provide total and differential cross section predictions for the reaction and discuss the possible influence of $$\Sigma (1750)\Sigma \eta $$ Σ ( 1750 ) Σ η vertex coupling and model parameters, which will be useful in future experimental studies. This reaction can provide a platform for studying the features of $$\Sigma (1750)$$ Σ ( 1750 ) resonance, especially the coupling to $$\Sigma \eta $$ Σ η channel.

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The π−p→a0−ηp reaction in an effective Lagrangian model

Cited by 2 publications

References 40 publications

Theoretical study of the π+p→pa0+ϕ reaction

Theoretical study of the π+p→pa0+ϕ reaction

The theoretical study of $$p\bar{p}\rightarrow \bar{\Lambda }\Sigma \eta $$ reaction

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