Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.98.032705 http://hdl.handle.net/11449/164676 |
Resumo: | We predict s-wave elastic cross-sections sigma for low-energy atom-molecule collisions with kinetic energies up to 40 mK for the He-4 collision with weakly bound diatomic molecules formed by He-4 with Li-7, Li-6, and Na-23. Our scattering calculations are performed by using diatomic and triatomic molecular binding energies obtained from several available realistic models as input in a renormalized zero-range model as well as a finite-range one-term separable potential in order to quantify the relevance of range corrections to our predictions. Of particular relevance for possible experimental realization, we show the occurrence of a zero in a for the collision of cold He-4 on a He-4 Na-23 molecule below 20 mK. Also our results for the elastic collision He-4 on He-4 Li-6,Li-7 molecules suggest that sigma varies considerably for the realistic models studied. As the chosen molecules are weakly bound and the scattering energies are very low, our results are interpreted on the light of the Efimov physics, which explains the model independence and robustness of our predictions despite some sensitivity on the potential range. |
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Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 moleculesWe predict s-wave elastic cross-sections sigma for low-energy atom-molecule collisions with kinetic energies up to 40 mK for the He-4 collision with weakly bound diatomic molecules formed by He-4 with Li-7, Li-6, and Na-23. Our scattering calculations are performed by using diatomic and triatomic molecular binding energies obtained from several available realistic models as input in a renormalized zero-range model as well as a finite-range one-term separable potential in order to quantify the relevance of range corrections to our predictions. Of particular relevance for possible experimental realization, we show the occurrence of a zero in a for the collision of cold He-4 on a He-4 Na-23 molecule below 20 mK. Also our results for the elastic collision He-4 on He-4 Li-6,Li-7 molecules suggest that sigma varies considerably for the realistic models studied. As the chosen molecules are weakly bound and the scattering energies are very low, our results are interpreted on the light of the Efimov physics, which explains the model independence and robustness of our predictions despite some sensitivity on the potential range.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, BrazilUniv Fed Fluminense, Inst Fis, BR-24210310 Niteroi, RJ, BrazilInst Tecnol Aeronaut, DCTA, BR-12228900 Sao Jose Dos Campos, BrazilUniv Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, BrazilFAPESP: 17/05660-0CNPq: 464898/2014-5Amer Physical SocUniversidade Estadual Paulista (Unesp)Universidade do Estado do Rio de Janeiro (UERJ)Inst Tecnol AeronautShalchi, M. A. [UNESP]Delfino, A.Frederico, T.Tomio, Lauro [UNESP]2018-11-26T17:55:34Z2018-11-26T17:55:34Z2018-09-24info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article9http://dx.doi.org/10.1103/PhysRevA.98.032705Physical Review A. College Pk: Amer Physical Soc, v. 98, n. 3, 9 p., 2018.2469-9926http://hdl.handle.net/11449/16467610.1103/PhysRevA.98.032705WOS:0004455030000078621258845956348Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2021-10-23T17:09:09Zoai:repositorio.unesp.br:11449/164676Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:09:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
title |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
spellingShingle |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules Shalchi, M. A. [UNESP] |
title_short |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
title_full |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
title_fullStr |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
title_full_unstemmed |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
title_sort |
Scattering of cold He-4 on He-4 Li-6,Li-7 and He-4 Na-23 molecules |
author |
Shalchi, M. A. [UNESP] |
author_facet |
Shalchi, M. A. [UNESP] Delfino, A. Frederico, T. Tomio, Lauro [UNESP] |
author_role |
author |
author2 |
Delfino, A. Frederico, T. Tomio, Lauro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade do Estado do Rio de Janeiro (UERJ) Inst Tecnol Aeronaut |
dc.contributor.author.fl_str_mv |
Shalchi, M. A. [UNESP] Delfino, A. Frederico, T. Tomio, Lauro [UNESP] |
description |
We predict s-wave elastic cross-sections sigma for low-energy atom-molecule collisions with kinetic energies up to 40 mK for the He-4 collision with weakly bound diatomic molecules formed by He-4 with Li-7, Li-6, and Na-23. Our scattering calculations are performed by using diatomic and triatomic molecular binding energies obtained from several available realistic models as input in a renormalized zero-range model as well as a finite-range one-term separable potential in order to quantify the relevance of range corrections to our predictions. Of particular relevance for possible experimental realization, we show the occurrence of a zero in a for the collision of cold He-4 on a He-4 Na-23 molecule below 20 mK. Also our results for the elastic collision He-4 on He-4 Li-6,Li-7 molecules suggest that sigma varies considerably for the realistic models studied. As the chosen molecules are weakly bound and the scattering energies are very low, our results are interpreted on the light of the Efimov physics, which explains the model independence and robustness of our predictions despite some sensitivity on the potential range. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T17:55:34Z 2018-11-26T17:55:34Z 2018-09-24 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevA.98.032705 Physical Review A. College Pk: Amer Physical Soc, v. 98, n. 3, 9 p., 2018. 2469-9926 http://hdl.handle.net/11449/164676 10.1103/PhysRevA.98.032705 WOS:000445503000007 8621258845956348 |
url |
http://dx.doi.org/10.1103/PhysRevA.98.032705 http://hdl.handle.net/11449/164676 |
identifier_str_mv |
Physical Review A. College Pk: Amer Physical Soc, v. 98, n. 3, 9 p., 2018. 2469-9926 10.1103/PhysRevA.98.032705 WOS:000445503000007 8621258845956348 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
9 |
dc.publisher.none.fl_str_mv |
Amer Physical Soc |
publisher.none.fl_str_mv |
Amer Physical Soc |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803650268090335232 |