Dense hadron star in quark degree of freedom
The quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis to probe properties of the star in the quark...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-03-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20146604030 |
| _version_ | 1818904138384146432 |
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| author | Tzeng Yiharn Tzeng S.Y.Tsay |
| author_facet | Tzeng Yiharn Tzeng S.Y.Tsay |
| author_sort | Tzeng Yiharn |
| collection | DOAJ |
| description | The quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis to probe properties of the star in the quark degree of freedom. Based on this interaction, the quark matter’s equation of state is obtained and its thermodynamic characteristics is investigated in detail. Stability of a star made of such matter is examined with and without strange quarks. The Tolman-Oppenheimer-Volkov equation along with the condition that dm=dr = 4πr2E are used to calculate mass and radius of such a star. Exact computations are made to calculate the star’s radius and mass at several temperatures. Comparisons of results from these temperatures are made and the significance is carefully investigated and discussed. |
| first_indexed | 2024-12-19T21:02:40Z |
| format | Article |
| id | doaj.art-514c4287229b408bba2adc9df6e164ec |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T21:02:40Z |
| publishDate | 2014-03-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-514c4287229b408bba2adc9df6e164ec2022-12-21T20:05:46ZengEDP SciencesEPJ Web of Conferences2100-014X2014-03-01660403010.1051/epjconf/20146604030epjconf_inpc2013_04030Dense hadron star in quark degree of freedomTzeng Yiharn0Tzeng S.Y.Tsay1Institute of Physics, Academia SinicaDept. of Electro-Optical Engineering, National Taipei University of TechnologyThe quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis to probe properties of the star in the quark degree of freedom. Based on this interaction, the quark matter’s equation of state is obtained and its thermodynamic characteristics is investigated in detail. Stability of a star made of such matter is examined with and without strange quarks. The Tolman-Oppenheimer-Volkov equation along with the condition that dm=dr = 4πr2E are used to calculate mass and radius of such a star. Exact computations are made to calculate the star’s radius and mass at several temperatures. Comparisons of results from these temperatures are made and the significance is carefully investigated and discussed.http://dx.doi.org/10.1051/epjconf/20146604030 |
| spellingShingle | Tzeng Yiharn Tzeng S.Y.Tsay Dense hadron star in quark degree of freedom EPJ Web of Conferences |
| title | Dense hadron star in quark degree of freedom |
| title_full | Dense hadron star in quark degree of freedom |
| title_fullStr | Dense hadron star in quark degree of freedom |
| title_full_unstemmed | Dense hadron star in quark degree of freedom |
| title_short | Dense hadron star in quark degree of freedom |
| title_sort | dense hadron star in quark degree of freedom |
| url | http://dx.doi.org/10.1051/epjconf/20146604030 |
| work_keys_str_mv | AT tzengyiharn densehadronstarinquarkdegreeoffreedom AT tzengsytsay densehadronstarinquarkdegreeoffreedom |