Publication:
Estimation of coupling constants for D-meson, charmed, and light baryons in effective Lagrangian approach and quark model

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Issued Date

2023

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Article

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application/pdf

DOI

10.1140/epja/s10050-023-00940-w

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Scopus

Bibliographic Citation

European Physical Journal A. Vol 59, No.2 (2023)

Suggested Citation

Sangkhakrit T., Kaewsnod A., Sreethawong W., Suyuporn T., Supanam N., Samart D., Yan Y. Estimation of coupling constants for D-meson, charmed, and light baryons in effective Lagrangian approach and quark model. European Physical Journal A. Vol 59, No.2 (2023). doi:10.1140/epja/s10050-023-00940-w Retrieved from: https://hdl.handle.net/20.500.14740/12588

Title

Estimation of coupling constants for D-meson, charmed, and light baryons in effective Lagrangian approach and quark model

Author(s)

Sangkhakrit T.
 Kaewsnod A.
 Sreethawong W.
 Suyuporn T.
 Supanam N.
 Samart D.
 Yan Y.

Other Contributor(s)

Srinakharinwirot University

Abstract

We estimate coupling constants for effective Lagrangians of D-meson, charmed, and light baryons from charmed baryon decay processes. First, we calculate decay widths for the processes Λc→ D∗N, Λc→ DN, Σc→ DN , Σc→ DΔ, and Σc→ D∗Δ in effective Lagrangian method and quark model picture with 3P model. By employing the coupling constants for D∗ΛcN interaction from several literatures, the strength parameter λ for 3P quark model is fixed in the decay process Λc→ D∗N. Then, the coupling constants for the effective Lagrangians of DΛcN, DΣcN, DΣcΔ, and D∗ΣcΔ interactions are estimated in the decay channels Λc→ DN, Σc→ DN, Σc→ DΔ, and Σc→ D∗Δ, respectively. Then, the coupling constants for DΣcN, D∗ΣcN, and D∗Σc∗Δ interactions are calculated from heavy-quark and large-Nc sum rules. The coupling constants from this study will be useful for further studies of charm hadrons. © 2023, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.

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https://hdl.handle.net/20.500.14740/12588

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Scopus: Year 2023

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