Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons
In the present work, we study the properties of strange quark stars (SQSs) using the vector MIT bag model with modification in vector channels. Unlike recent studies which only consider interactions through ω mesons, we analyze the possibility of ρ and ϕ vector channels. We consider two types of hig...
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Elsevier
2025-09-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026932500468X |
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| author | Mukul Wadhwa Manisha Kumari Arvind Kumar |
| author_facet | Mukul Wadhwa Manisha Kumari Arvind Kumar |
| author_sort | Mukul Wadhwa |
| collection | DOAJ |
| description | In the present work, we study the properties of strange quark stars (SQSs) using the vector MIT bag model with modification in vector channels. Unlike recent studies which only consider interactions through ω mesons, we analyze the possibility of ρ and ϕ vector channels. We consider two types of higher order non-linear self-interaction terms for the vector mesons. With these modifications, we computed the equation of state (EoS) and mass-radius of strange stars for different values of vector coupling strength. Considerations of ρ and ϕ vector mesons along with ω, as well as an increase in the strength of vector coupling gv, enhance the mass and radius of SQSs. For two kind of non-linear self-interactions of vector mesons considered in the present calculations, we observe the SQSs with maximum mass 2.48 and 2.42M⊙ for the vector coupling gv=3. Corresponding radii of these SQSs are found to be 12.27 and 12.18 km, respectively. We also calculate the tidal deformability parameter Λ, the Love number k2 and the gravitational redshift of SQSs. The tidal deformability parameter Λ is observed to increase with gv, with appreciable effect for low mass stars. |
| format | Article |
| id | doaj-art-fc19ff50f3954ba1b13ee6cd231336b6 |
| institution | Matheson Library |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
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| series | Physics Letters B |
| spelling | doaj-art-fc19ff50f3954ba1b13ee6cd231336b62025-07-06T04:23:15ZengElsevierPhysics Letters B0370-26932025-09-01868139707Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesonsMukul Wadhwa0Manisha Kumari1Arvind Kumar2Department of Physics, Dr. B R Ambedkar National Institute of Technology Jalandhar, Jalandhar, 144008, Punjab, IndiaDepartment of Physics, Dr. B R Ambedkar National Institute of Technology Jalandhar, Jalandhar, 144008, Punjab, IndiaCorresponding author.; Department of Physics, Dr. B R Ambedkar National Institute of Technology Jalandhar, Jalandhar, 144008, Punjab, IndiaIn the present work, we study the properties of strange quark stars (SQSs) using the vector MIT bag model with modification in vector channels. Unlike recent studies which only consider interactions through ω mesons, we analyze the possibility of ρ and ϕ vector channels. We consider two types of higher order non-linear self-interaction terms for the vector mesons. With these modifications, we computed the equation of state (EoS) and mass-radius of strange stars for different values of vector coupling strength. Considerations of ρ and ϕ vector mesons along with ω, as well as an increase in the strength of vector coupling gv, enhance the mass and radius of SQSs. For two kind of non-linear self-interactions of vector mesons considered in the present calculations, we observe the SQSs with maximum mass 2.48 and 2.42M⊙ for the vector coupling gv=3. Corresponding radii of these SQSs are found to be 12.27 and 12.18 km, respectively. We also calculate the tidal deformability parameter Λ, the Love number k2 and the gravitational redshift of SQSs. The tidal deformability parameter Λ is observed to increase with gv, with appreciable effect for low mass stars.http://www.sciencedirect.com/science/article/pii/S037026932500468XStrange quark starsMIT bag modelVector interactions |
| spellingShingle | Mukul Wadhwa Manisha Kumari Arvind Kumar Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons Physics Letters B Strange quark stars MIT bag model Vector interactions |
| title | Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons |
| title_full | Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons |
| title_fullStr | Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons |
| title_full_unstemmed | Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons |
| title_short | Strange quark stars in modified vector MIT bag model: Role of ρ and ϕ mesons |
| title_sort | strange quark stars in modified vector mit bag model role of ρ and ϕ mesons |
| topic | Strange quark stars MIT bag model Vector interactions |
| url | http://www.sciencedirect.com/science/article/pii/S037026932500468X |
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