Conferencia
Abstract:
We discuss the application of the permutation group SN to a few problems in hadron physics. In Ref. [11] a method was proposed for matching a quark model Hamiltonian onto the effective Hamiltonian of the 1/Nc expansion, which makes use of the transformation properties of the states and operators under SN. This method is used in [13] to obtain information about the spin-flavor structure of the quark interaction Hamiltonian from the spectrum of the negative parity L = 1 excited baryons. Assuming the most general 2-body quark Hamiltonian, we derive two correlations among the masses and mixing angles of these states which should hold in any quark model. These correlations constrain the mixing angles, and can be used to test for the presence of 3-body quark interactions. We find that the pure gluon-exchange model is disfavored by data, independently of any assumptions about the hadronic wave functions. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Registro:
| Documento: | Conferencia |
| Título: | Permutation group SN and hadron spectroscopy |
| Autor: | Pirjol, D.; Schat, C. |
| Ciudad: | Valencia |
| Filiación: | Department of Particle Physics, National Institute for Physics and Nuclear Engineering, 077125 Bucharest, Romania CONICET, Departamento de Fisica, Ciudad Universitaria, Pab. 1, (1428) Buenos Aires, Argentina Department of Physics and Astronomy, Ohio University, Athens, OH 45701, United States |
| Palabras clave: | Effective Hamiltonian; Hadron physics; Hadron spectroscopy; Mixing angle; Permutation group; Quark interaction; Quark model; Hamiltonians; High energy physics; Mixing; Spectroscopic analysis; Hadrons |
| Año: | 2009 |
| Título revista: | International Workshop on Effective Field Theories: From the Pion to the Upsilon, EFT 2009 |
| Título revista abreviado: | Proc. Sci. |
| ISSN: | 18248039 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v_n_p_Pirjol |
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Citas:
---------- APA ----------
Pirjol, D. & Schat, C. (2009) . Permutation group SN and hadron spectroscopy. International Workshop on Effective Field Theories: From the Pion to the Upsilon, EFT 2009.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v_n_p_Pirjol [ ]
---------- CHICAGO ----------
Pirjol, D., Schat, C. "Permutation group SN and hadron spectroscopy" . International Workshop on Effective Field Theories: From the Pion to the Upsilon, EFT 2009 (2009).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v_n_p_Pirjol [ ]
---------- MLA ----------
Pirjol, D., Schat, C. "Permutation group SN and hadron spectroscopy" . International Workshop on Effective Field Theories: From the Pion to the Upsilon, EFT 2009, 2009.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v_n_p_Pirjol [ ]
---------- VANCOUVER ----------
Pirjol, D., Schat, C. Permutation group SN and hadron spectroscopy. Proc. Sci. 2009.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v_n_p_Pirjol [ ]
