Pseudoscalar mesons from a PNJL model at zero temperature
Abstract We study pseudoscalar $$\pi $$ π , K and $$\eta $$ η meson properties, such as masses and couplings, in dense matter at zero temperature. We use a recently proposed phenomenological quark model, known as the PNJL0, which takes into account the confinement/deconfinement phase transition by m...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-10-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13447-5 |
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| _version_ | 1849220582172786688 |
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| author | R. M. Aguirre O. Lourenço |
| author_facet | R. M. Aguirre O. Lourenço |
| author_sort | R. M. Aguirre |
| collection | DOAJ |
| description | Abstract We study pseudoscalar $$\pi $$ π , K and $$\eta $$ η meson properties, such as masses and couplings, in dense matter at zero temperature. We use a recently proposed phenomenological quark model, known as the PNJL0, which takes into account the confinement/deconfinement phase transition by means of the traced Polyakov loop ( $$\varPhi $$ Φ ) which serves as an order parameter at zero temperature. We consider two different scenarios, namely, symmetric quark matter with equal chemical potentials for all the flavors, and the beta equilibrated matter. In the latter case the hadron-quark phase transition is implemented by a two model approach. For the hadron side we use a relativistic mean-field model with density dependent couplings. We show that $$\varPhi $$ Φ induces abrupt changes in the mesons properties with gap sizes regulated by the phenomenological gluonic sector of the model. |
| format | Article |
| id | doaj-art-88c7c2b3fbb14265bfd4c3f478edc3de |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-88c7c2b3fbb14265bfd4c3f478edc3de2024-12-08T12:43:55ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-10-01841011410.1140/epjc/s10052-024-13447-5Pseudoscalar mesons from a PNJL model at zero temperatureR. M. Aguirre0O. Lourenço1Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, and IFLP, UNLP-CONICETDepartamento de Física e Laboratório de Computação Científica Avançada e Modelamento (Lab-CCAM), Instituto Tecnológico de Aeronáutica, DCTAAbstract We study pseudoscalar $$\pi $$ π , K and $$\eta $$ η meson properties, such as masses and couplings, in dense matter at zero temperature. We use a recently proposed phenomenological quark model, known as the PNJL0, which takes into account the confinement/deconfinement phase transition by means of the traced Polyakov loop ( $$\varPhi $$ Φ ) which serves as an order parameter at zero temperature. We consider two different scenarios, namely, symmetric quark matter with equal chemical potentials for all the flavors, and the beta equilibrated matter. In the latter case the hadron-quark phase transition is implemented by a two model approach. For the hadron side we use a relativistic mean-field model with density dependent couplings. We show that $$\varPhi $$ Φ induces abrupt changes in the mesons properties with gap sizes regulated by the phenomenological gluonic sector of the model.https://doi.org/10.1140/epjc/s10052-024-13447-5 |
| spellingShingle | R. M. Aguirre O. Lourenço Pseudoscalar mesons from a PNJL model at zero temperature European Physical Journal C: Particles and Fields |
| title | Pseudoscalar mesons from a PNJL model at zero temperature |
| title_full | Pseudoscalar mesons from a PNJL model at zero temperature |
| title_fullStr | Pseudoscalar mesons from a PNJL model at zero temperature |
| title_full_unstemmed | Pseudoscalar mesons from a PNJL model at zero temperature |
| title_short | Pseudoscalar mesons from a PNJL model at zero temperature |
| title_sort | pseudoscalar mesons from a pnjl model at zero temperature |
| url | https://doi.org/10.1140/epjc/s10052-024-13447-5 |
| work_keys_str_mv | AT rmaguirre pseudoscalarmesonsfromapnjlmodelatzerotemperature AT olourenco pseudoscalarmesonsfromapnjlmodelatzerotemperature |