Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/95848
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ferreira, Márcio | - |
dc.contributor.author | Pereira, Renan Câmara | - |
dc.contributor.author | Providência, Constança | - |
dc.date.accessioned | 2021-09-28T16:24:42Z | - |
dc.date.available | 2021-09-28T16:24:42Z | - |
dc.date.issued | 2021-05-13 | - |
dc.identifier.issn | 2470-0010 | pt |
dc.identifier.issn | 2470-0029 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/95848 | - |
dc.description | 12 pages, 8 figures; matches the published version | pt |
dc.description.abstract | We analyze the impact of several multi-quark interaction channels on the properties of hybrid stars. Four and eight vector interactions were included in the $SU(3)$ NJL model to describe the quark matter, and all vector like interactions were investigated. The hybrid stars were built starting from an hadronic EoS that satisfy presently accepted nuclear matter properties and considering the quark model constrained by the vacuum properties of several light mesons. The interplay between the 8-quark vector interaction and the 4-quark isovector-vector interaction determine the size of the quark core and its strangeness content. The inclusion of a isovector-vector interaction is essential to obtain large $s$-quark contents and a smaller central speed of sound, although this interaction pushes the onset of quarks to larger densities. It is observed that low mass stars, with a mass below 1.4$M_\odot$, may contain a quark core but with small strangeness content. It is shown that the presently existing mass and tidal deformability constraints from NS observations allow for the existence of hybrid stars with a large strangeness content and large quark cores for binary mass ratios $q=M_2/M_1\gtrsim 0.85$. | pt |
dc.language.iso | eng | pt |
dc.publisher | American Physical Society | pt |
dc.relation | PD/BD/128234/2016 | pt |
dc.relation | POCI-01-0145-FEDER-029912 | pt |
dc.relation | UID/04564/2020 | pt |
dc.relation | UID/FIS/04564/2019 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | Nuclear Theory | pt |
dc.subject | High Energy Physics | pt |
dc.subject | Phenomenology | pt |
dc.title | Hybrid stars with large strange quark cores constrained by GW170817 | pt |
dc.type | article | - |
degois.publication.issue | 12 | pt |
degois.publication.title | Physical Review D | pt |
dc.relation.publisherversion | https://journals.aps.org/prd/pdf/10.1103/PhysRevD.103.123020 | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1103/PhysRevD.103.123020 | pt |
degois.publication.volume | 103 | pt |
dc.date.embargo | 2021-05-13 | * |
uc.date.periodoEmbargo | 0 | pt |
item.openairetype | article | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
crisitem.author.researchunit | CFisUC – Center for Physics of the University of Coimbra | - |
crisitem.author.orcid | 0000-0001-6464-8023 | - |
Appears in Collections: | I&D CFis - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
PhysRevD.103.123020.pdf | 5.5 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
8
checked on Mar 18, 2024
WEB OF SCIENCETM
Citations
7
checked on Mar 2, 2024
Page view(s)
170
checked on Mar 26, 2024
Download(s)
96
checked on Mar 26, 2024
Google ScholarTM
Check
Altmetric
Altmetric
This item is licensed under a Creative Commons License