Testing for three-body quark forces in L=1 excited baryons

We discuss the matching of the quark model to the effective mass operator of the 1/Nc expansion using the permutation group SN. As an illustration of the general procedure we perform the matching of the Isgur-Karl model for the spectrum of the negative parity L=1 excited baryons. Assuming the most g...

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Detalles Bibliográficos
Publicado: 2010
Materias:
1/N expansion of QCD
excited baryons
Quark model
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1296_n_p159_Pirjol
http://hdl.handle.net/20.500.12110/paper_0094243X_v1296_n_p159_Pirjol
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0094243X_v1296_n_p159_Pirjol
record_format dspace
spelling paper:paper_0094243X_v1296_n_p159_Pirjol2023-06-08T15:09:10Z Testing for three-body quark forces in L=1 excited baryons 1/N expansion of QCD excited baryons Quark model We discuss the matching of the quark model to the effective mass operator of the 1/Nc expansion using the permutation group SN. As an illustration of the general procedure we perform the matching of the Isgur-Karl model for the spectrum of the negative parity L=1 excited baryons. Assuming the most general two-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 three-body quark forces. © 2010 American Institute of Physics. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1296_n_p159_Pirjol http://hdl.handle.net/20.500.12110/paper_0094243X_v1296_n_p159_Pirjol
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 1/N expansion of QCD
excited baryons
Quark model
spellingShingle 1/N expansion of QCD
excited baryons
Quark model
Testing for three-body quark forces in L=1 excited baryons
topic_facet 1/N expansion of QCD
excited baryons
Quark model
description We discuss the matching of the quark model to the effective mass operator of the 1/Nc expansion using the permutation group SN. As an illustration of the general procedure we perform the matching of the Isgur-Karl model for the spectrum of the negative parity L=1 excited baryons. Assuming the most general two-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 three-body quark forces. © 2010 American Institute of Physics.
title Testing for three-body quark forces in L=1 excited baryons
title_short Testing for three-body quark forces in L=1 excited baryons
title_full Testing for three-body quark forces in L=1 excited baryons
title_fullStr Testing for three-body quark forces in L=1 excited baryons
title_full_unstemmed Testing for three-body quark forces in L=1 excited baryons
title_sort testing for three-body quark forces in l=1 excited baryons
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0094243X_v1296_n_p159_Pirjol
http://hdl.handle.net/20.500.12110/paper_0094243X_v1296_n_p159_Pirjol
_version_ 1768544448203980800

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