Nucleon and 
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 resonances in 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:mi>n</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi mathvariant="normal">Σ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>
 photoproduction

Wei, Neng-Chang; Wang, Ai-Chao; Huang, F.; Nakayama, K.

doi:10.1103/physrevd.105.094017

Phys. Rev. D

2022

DOI: 10.1103/physrevd.105.094017

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Nucleon and Δ resonances in γn→K+Σ− photoproduction

Neng-Chang Wei

Ai-Chao Wang

F. Huang

et al.

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Cited by 7 publications

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“…For instance, with these data, we analyzed the process to deepen our understanding of the nature of in Ref. [39]. To confirm the existence of , we propose to investigate the process 1) within the Regge-effective Lagrangian approach.…”

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Photo-production of lowest state within the Regge-effective Lagrangian approach*

et al. 2023

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Since the lowest $\Sigma^{*}$ state, with quantum numbers spin-parity $J^{P} =1/2^{-}$, is far from established experimentally and theoretically, we have performed a theoretical study on the $\Sigma^*_{1/2^-}$ photo-production within the Regge-effective Lagrangian approach. Taking into account that the $\Sigma^*_{1/2^-}$ couples to the $\bar{K}N$ channel, we have considered the contributions from the $t$-channel $K$ exchange diagram. Moreover, these contributions from $t$-channel $K^*$ exchange, $s$-channel nucleon pole, $u$-channel $\Sigma$ exchange, and the contact term, are considered. The differential and total cross sections of the process $\gamma n \to K^{+}\Sigma^{*-}_{1/2^-}$ are predicted with our model parameters. The results should be helpful to search for the $\Sigma^*_{1/2^-}$ state experimentally in future. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Photo-production of lowest state within the Regge-effective Lagrangian approach*

et al. 2023

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Analysis of data for γp → f ₁(1285)p photoproduction*

Wang 王,

Wei 韦,

Huang 黄

2024

Chinese Phys. C

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The photoproduction of f1(1285) meson off proton is investigated within an effective Lagrangian approach. The t-channel ρ- and ω-exchange diagrams, u-channel nucleon-exchange diagram, generalized contact term, and s-channel pole diagrams of nucleon and a minimal number of nucleon resonances are taken into account in constructing the reaction amplitudes to describe the experimental data. Three different models, i.e., the Feynman model, the Regge model, and the interpolated Regge model, are employed where the t-channel reaction amplitudes are constructed in Feynman type, Regge type, and interpolated Regge type, respectively. The results show that in neither Feynman model nor interpolated Regge model can the available data for γp → f1(1285)p be satisfactorily reproduced. Nevertheless, in the Regge model, when any one of the N(1990)7/2+, N(2000)5/2+, N(2040)3/2+, N(2060)5/2−, N(2100)1/2+, N(2120)3/2−, N(2190)7/2−, N(2300)1/2+, and N(2570)5/2−resonances is considered, the data can be well described. The resulted resonance parameters are consistent with those advocated in Particle Data Group (PDG) review. Further analysis shows that in high-energy region, the peaks of γp → f1(1285)p differential cross sections at forward angles are dominated by the contributions from t-channel ρ- and ω-exchange diagrams, while in low-energy region, the s-channel pole diagrams of resonances also provide significant contributions to the γp → f1(1285)p cross sections.

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

Wang

Liu²

2023

Phys. Rev. C

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Nucleon and Δ resonances in γn→K+Σ− photoproduction

Cited by 7 publications

References 61 publications

Photo-production of lowest state within the Regge-effective Lagrangian approach*

Photo-production of lowest state within the Regge-effective Lagrangian approach*

Analysis of data for γp → f ₁(1285)p photoproduction*

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

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Product

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About

Nucleon and Δ resonances in γn→K+Σ− photoproduction

Cited by 7 publications

References 61 publications

Photo-production of lowest state within the Regge-effective Lagrangian approach*

Photo-production of lowest state within the Regge-effective Lagrangian approach*

Analysis of data for γp → f 1(1285)p photoproduction*

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

Contact Info

Product

Resources

About

Analysis of data for γp → f ₁(1285)p photoproduction*