Compact ssscc¯ pentaquark states predicted by a quark model
Several compact ssscc¯ pentaquark resonances are predicted in a potential quark model. The Hamiltonian is the best available one, which reproduces the masses of the low-lying charmed and strange hadrons well. Full five-body calculations are carried out by the use of the Gaussian expansion method, an...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-11-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319307506 |
| _version_ | 1818503667682115584 |
|---|---|
| author | Qi Meng Emiko Hiyama Kadir Utku Can Philipp Gubler Makoto Oka Atsushi Hosaka Hongshi Zong |
| author_facet | Qi Meng Emiko Hiyama Kadir Utku Can Philipp Gubler Makoto Oka Atsushi Hosaka Hongshi Zong |
| author_sort | Qi Meng |
| collection | DOAJ |
| description | Several compact ssscc¯ pentaquark resonances are predicted in a potential quark model. The Hamiltonian is the best available one, which reproduces the masses of the low-lying charmed and strange hadrons well. Full five-body calculations are carried out by the use of the Gaussian expansion method, and the relevant baryon-meson thresholds are taken into account explicitly. Employing the real scaling method, we predict four sharp resonances, JP=1/2− (E=5180 MeV, Γ=20 MeV), 5/2− (5645 MeV, 30 MeV), 5/2− (5670 MeV, 50 MeV), and 1/2+ (5360 MeV, 80 MeV). These are the candidates of compact pentaquark resonance states from the current best quark model, which should be confirmed either by experiments or lattice QCD calculations. Keywords: Pentaquark system ssscc¯, Quark model, Few-body problem |
| first_indexed | 2024-12-10T21:27:04Z |
| format | Article |
| id | doaj.art-c41effb0935c4df2a3db3e6d3d00f129 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-10T21:27:04Z |
| publishDate | 2019-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-c41effb0935c4df2a3db3e6d3d00f1292022-12-22T01:32:57ZengElsevierPhysics Letters B0370-26932019-11-01798Compact ssscc¯ pentaquark states predicted by a quark modelQi Meng0Emiko Hiyama1Kadir Utku Can2Philipp Gubler3Makoto Oka4Atsushi Hosaka5Hongshi Zong6Department of Physics, Nanjing University, Nanjing 210093, China; Corresponding author.Department of Physics, Kyushu University, Fukuoka 819-0395, Japan; Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, JapanNishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, JapanAdvanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, JapanNishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, JapanNishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, JapanDepartment of Physics, Nanjing University, Nanjing 210093, China; Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093, China; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, CAS, Beijing 100190, ChinaSeveral compact ssscc¯ pentaquark resonances are predicted in a potential quark model. The Hamiltonian is the best available one, which reproduces the masses of the low-lying charmed and strange hadrons well. Full five-body calculations are carried out by the use of the Gaussian expansion method, and the relevant baryon-meson thresholds are taken into account explicitly. Employing the real scaling method, we predict four sharp resonances, JP=1/2− (E=5180 MeV, Γ=20 MeV), 5/2− (5645 MeV, 30 MeV), 5/2− (5670 MeV, 50 MeV), and 1/2+ (5360 MeV, 80 MeV). These are the candidates of compact pentaquark resonance states from the current best quark model, which should be confirmed either by experiments or lattice QCD calculations. Keywords: Pentaquark system ssscc¯, Quark model, Few-body problemhttp://www.sciencedirect.com/science/article/pii/S0370269319307506 |
| spellingShingle | Qi Meng Emiko Hiyama Kadir Utku Can Philipp Gubler Makoto Oka Atsushi Hosaka Hongshi Zong Compact ssscc¯ pentaquark states predicted by a quark model Physics Letters B |
| title | Compact ssscc¯ pentaquark states predicted by a quark model |
| title_full | Compact ssscc¯ pentaquark states predicted by a quark model |
| title_fullStr | Compact ssscc¯ pentaquark states predicted by a quark model |
| title_full_unstemmed | Compact ssscc¯ pentaquark states predicted by a quark model |
| title_short | Compact ssscc¯ pentaquark states predicted by a quark model |
| title_sort | compact ssscc¯ pentaquark states predicted by a quark model |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319307506 |
| work_keys_str_mv | AT qimeng compactsssccpentaquarkstatespredictedbyaquarkmodel AT emikohiyama compactsssccpentaquarkstatespredictedbyaquarkmodel AT kadirutkucan compactsssccpentaquarkstatespredictedbyaquarkmodel AT philippgubler compactsssccpentaquarkstatespredictedbyaquarkmodel AT makotooka compactsssccpentaquarkstatespredictedbyaquarkmodel AT atsushihosaka compactsssccpentaquarkstatespredictedbyaquarkmodel AT hongshizong compactsssccpentaquarkstatespredictedbyaquarkmodel |