Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking
We investigate the strong coupling constants for the baryon octet–octet, decuplet–octet, and decuplet–decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects of flavor SU(3) symmetry breaking to linear order in the expa...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318307020 |
| _version_ | 1818943458959687680 |
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| author | Ghil-Seok Yang Hyun-Chul Kim |
| author_facet | Ghil-Seok Yang Hyun-Chul Kim |
| author_sort | Ghil-Seok Yang |
| collection | DOAJ |
| description | We investigate the strong coupling constants for the baryon octet–octet, decuplet–octet, and decuplet–decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects of flavor SU(3) symmetry breaking to linear order in the expansion of the strange current quark mass. All relevant dynamical parameters are fixed by using the experimental data on hyperon semileptonic decays and the singlet axial-vector constant of the nucleon. The results of the strong coupling constants for the baryon octet and the pseudoscalar meson octet are compared with those determined from the Jülich–Bonn potential and the Nijmegen extended soft-core potential for hyperon–nucleon scattering. The results of the strong decay widths of the baryon decuplet are in good agreement with the experimental data. The effects of SUf(3) symmetry breaking are sizable on the η′ coupling constants. We predict also the strong coupling constants for the Ω baryons. Keywords: Meson–baryon coupling constants, Strong decay widths, The chiral quark-soliton model |
| first_indexed | 2024-12-20T07:27:39Z |
| format | Article |
| id | doaj.art-528b93e8301242caa9b372046c72026c |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-20T07:27:39Z |
| publishDate | 2018-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-528b93e8301242caa9b372046c72026c2022-12-21T19:48:29ZengElsevierPhysics Letters B0370-26932018-10-01785434440Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breakingGhil-Seok Yang0Hyun-Chul Kim1Department of Physics, Soongsil University, Seoul 06978, Republic of KoreaDepartment of Physics, Inha University, Incheon 22212, Republic of Korea; School of Physics, Korea Institute for Advanced Study (KIAS), Seoul 02455, Republic of Korea; Corresponding author at: Department of Physics, Inha University, Incheon 22212, Republic of Korea.We investigate the strong coupling constants for the baryon octet–octet, decuplet–octet, and decuplet–decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects of flavor SU(3) symmetry breaking to linear order in the expansion of the strange current quark mass. All relevant dynamical parameters are fixed by using the experimental data on hyperon semileptonic decays and the singlet axial-vector constant of the nucleon. The results of the strong coupling constants for the baryon octet and the pseudoscalar meson octet are compared with those determined from the Jülich–Bonn potential and the Nijmegen extended soft-core potential for hyperon–nucleon scattering. The results of the strong decay widths of the baryon decuplet are in good agreement with the experimental data. The effects of SUf(3) symmetry breaking are sizable on the η′ coupling constants. We predict also the strong coupling constants for the Ω baryons. Keywords: Meson–baryon coupling constants, Strong decay widths, The chiral quark-soliton modelhttp://www.sciencedirect.com/science/article/pii/S0370269318307020 |
| spellingShingle | Ghil-Seok Yang Hyun-Chul Kim Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking Physics Letters B |
| title | Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking |
| title_full | Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking |
| title_fullStr | Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking |
| title_full_unstemmed | Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking |
| title_short | Meson–baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking |
| title_sort | meson baryon coupling constants of the su 3 baryons with flavor su 3 symmetry breaking |
| url | http://www.sciencedirect.com/science/article/pii/S0370269318307020 |
| work_keys_str_mv | AT ghilseokyang mesonbaryoncouplingconstantsofthesu3baryonswithflavorsu3symmetrybreaking AT hyunchulkim mesonbaryoncouplingconstantsofthesu3baryonswithflavorsu3symmetrybreaking |