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Light hyperclusters and hyperons in low-density hot stellar matter

Bibliographic Details
Main Author: Custódio, Tiago
Publication Date: 2021
Other Authors: Pais, Helena, Providência, Constança
Format: Other
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/10316/95926
https://doi.org/10.1103/PhysRevC.104.035801
Summary: 12 pages, 8 figures
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network_name_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository_id_str https://opendoar.ac.uk/repository/7160
spelling Light hyperclusters and hyperons in low-density hot stellar matterNuclear Theoryastro-ph.HE12 pages, 8 figuresThe abundance of light nuclei and hyperons, that are produced in stellar environments such as supernova or binary mergers, is calculated within a relativistic mean-field model with density dependent couplings in low-density matter. Five light nuclei are considered, together with three light hyper-nuclei. We show that the presence of hyperons shifts the dissolution of clusters to larger densities, and increases the amount of clusters. This effect is larger the smaller the charge fraction, and the higher the temperature. The abundance of hyperons is also affected by the cluster formation: neutral and positively charged hyperons suffer a reduction, and the negatively charged ones an increase. We also observe that the dissolution of the less-abundant clusters occurs at larger densities due to smaller Pauli-blocking effects. Overall, hyper-nuclei set in at temperatures above 25 MeV, and depending on the temperature and chemical composition, they may be more abundant than $\alpha$-particles, or even more abundant than other heavier clusters.This work was partly supported by the FCT (Portugal) Projects No. UID/FIS/04564/2020 and No. POCI-01-0145-FEDER-029912, and by PHAROS COST Action CA16214. H.P. acknowledges Grant No. CEECIND/03092/2017 (FCT, Portugal).American Physical Society2021-06-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/otherhttps://hdl.handle.net/10316/95926https://hdl.handle.net/10316/95926https://doi.org/10.1103/PhysRevC.104.035801eng2469-99852469-9993http://arxiv.org/abs/2106.12245v1http://arxiv.org/abs/2106.12245v1http://arxiv.org/abs/2106.12245v1http://arxiv.org/abs/2106.12245v1https://journals.aps.org/prc/abstract/10.1103/PhysRevC.104.035801Custódio, TiagoPais, HelenaProvidência, Constançainfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2022-05-25T02:48:15Zoai:estudogeral.uc.pt:10316/95926Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T05:44:17.309341Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Light hyperclusters and hyperons in low-density hot stellar matter
title Light hyperclusters and hyperons in low-density hot stellar matter
spellingShingle Light hyperclusters and hyperons in low-density hot stellar matter
Custódio, Tiago
Nuclear Theory
astro-ph.HE
title_short Light hyperclusters and hyperons in low-density hot stellar matter
title_full Light hyperclusters and hyperons in low-density hot stellar matter
title_fullStr Light hyperclusters and hyperons in low-density hot stellar matter
title_full_unstemmed Light hyperclusters and hyperons in low-density hot stellar matter
title_sort Light hyperclusters and hyperons in low-density hot stellar matter
author Custódio, Tiago
author_facet Custódio, Tiago
Pais, Helena
Providência, Constança
author_role author
author2 Pais, Helena
Providência, Constança
author2_role author
author
dc.contributor.author.fl_str_mv Custódio, Tiago
Pais, Helena
Providência, Constança
dc.subject.por.fl_str_mv Nuclear Theory
astro-ph.HE
topic Nuclear Theory
astro-ph.HE
description 12 pages, 8 figures
publishDate 2021
dc.date.none.fl_str_mv 2021-06-23
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/other
format other
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10316/95926
https://hdl.handle.net/10316/95926
https://doi.org/10.1103/PhysRevC.104.035801
url https://hdl.handle.net/10316/95926
https://doi.org/10.1103/PhysRevC.104.035801
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2469-9985
2469-9993
http://arxiv.org/abs/2106.12245v1
http://arxiv.org/abs/2106.12245v1
http://arxiv.org/abs/2106.12245v1
http://arxiv.org/abs/2106.12245v1
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.104.035801
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833602455163633664

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