Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.102.062814 http://hdl.handle.net/11449/209805 |
Resumo: | Atom-dimer exchange and dissociation reaction rates are predicted for different combinations of two He-4 atoms and one of the alkaline species among Li-6, Li-7, and Na-23 , by using three-body scattering formalism with short-range two-body interactions. Our study was concerned with low-energy reaction rates in which the s-, p-, and d-wave contributions are the relevant ones. The He-4 is chosen as one of the atoms in the binary mixture, in view of available previous investigations and laboratory accessibilities. Focusing on possible experimental cold-atom realizations with two-atomic mixtures, in which information on atom-dimer reaction rates can be extracted, we predict the occurrence of a dip in the elastic reaction rate for colliding energies smaller than 20 mK, when the dimer is the (HeNa)-He-4-Na-23 molecule. We are also anticipating a zero in the elastic p-wave contribution for the He-4 + He-4 Li-7 and He-4 + (HeNa)-He-4-Na-23 reaction processes. With weakly bound molecules reacting with atoms at very low colliding energies, we interpret our results in the light of Efimov physics which supports model independence and robustness of our predictions. Specific sensitivities on the effective range were evidenced, highlighted by the particular inversion role of the p- and d-waves in the atom exchange and dissociation processes. |
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Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23Atom-dimer exchange and dissociation reaction rates are predicted for different combinations of two He-4 atoms and one of the alkaline species among Li-6, Li-7, and Na-23 , by using three-body scattering formalism with short-range two-body interactions. Our study was concerned with low-energy reaction rates in which the s-, p-, and d-wave contributions are the relevant ones. The He-4 is chosen as one of the atoms in the binary mixture, in view of available previous investigations and laboratory accessibilities. Focusing on possible experimental cold-atom realizations with two-atomic mixtures, in which information on atom-dimer reaction rates can be extracted, we predict the occurrence of a dip in the elastic reaction rate for colliding energies smaller than 20 mK, when the dimer is the (HeNa)-He-4-Na-23 molecule. We are also anticipating a zero in the elastic p-wave contribution for the He-4 + He-4 Li-7 and He-4 + (HeNa)-He-4-Na-23 reaction processes. With weakly bound molecules reacting with atoms at very low colliding energies, we interpret our results in the light of Efimov physics which supports model independence and robustness of our predictions. Specific sensitivities on the effective range were evidenced, highlighted by the particular inversion role of the p- and d-waves in the atom exchange and dissociation processes.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, BrazilInst Tecnol Aeronaut, DCTA, BR-12228900 Sao Jose Dos Campos, BrazilUniv Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, BrazilFAPESP: 2017/056600FAPESP: 2019/00153-8CNPq: 303579/2019-6CNPq: 308486/2015-3CNPq: 304469-2019-0CNPq: INCT-FNA 464898/2014-5Amer Physical SocUniversidade Estadual Paulista (Unesp)Inst Tecnol AeronautShalchi, M. A. [UNESP]Yamashita, M. T. [UNESP]Frederico, T.Tomio, Lauro [UNESP]2021-06-25T12:29:51Z2021-06-25T12:29:51Z2020-12-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20http://dx.doi.org/10.1103/PhysRevA.102.062814Physical Review A. College Pk: Amer Physical Soc, v. 102, n. 6, 20 p., 2020.2469-9926http://hdl.handle.net/11449/20980510.1103/PhysRevA.102.062814WOS:000600558000004Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2021-10-23T19:50:02Zoai:repositorio.unesp.br:11449/209805Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:17:30.993759Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
title |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
spellingShingle |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 Shalchi, M. A. [UNESP] |
title_short |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
title_full |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
title_fullStr |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
title_full_unstemmed |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
title_sort |
Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23 |
author |
Shalchi, M. A. [UNESP] |
author_facet |
Shalchi, M. A. [UNESP] Yamashita, M. T. [UNESP] Frederico, T. Tomio, Lauro [UNESP] |
author_role |
author |
author2 |
Yamashita, M. T. [UNESP] Frederico, T. Tomio, Lauro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Inst Tecnol Aeronaut |
dc.contributor.author.fl_str_mv |
Shalchi, M. A. [UNESP] Yamashita, M. T. [UNESP] Frederico, T. Tomio, Lauro [UNESP] |
description |
Atom-dimer exchange and dissociation reaction rates are predicted for different combinations of two He-4 atoms and one of the alkaline species among Li-6, Li-7, and Na-23 , by using three-body scattering formalism with short-range two-body interactions. Our study was concerned with low-energy reaction rates in which the s-, p-, and d-wave contributions are the relevant ones. The He-4 is chosen as one of the atoms in the binary mixture, in view of available previous investigations and laboratory accessibilities. Focusing on possible experimental cold-atom realizations with two-atomic mixtures, in which information on atom-dimer reaction rates can be extracted, we predict the occurrence of a dip in the elastic reaction rate for colliding energies smaller than 20 mK, when the dimer is the (HeNa)-He-4-Na-23 molecule. We are also anticipating a zero in the elastic p-wave contribution for the He-4 + He-4 Li-7 and He-4 + (HeNa)-He-4-Na-23 reaction processes. With weakly bound molecules reacting with atoms at very low colliding energies, we interpret our results in the light of Efimov physics which supports model independence and robustness of our predictions. Specific sensitivities on the effective range were evidenced, highlighted by the particular inversion role of the p- and d-waves in the atom exchange and dissociation processes. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-17 2021-06-25T12:29:51Z 2021-06-25T12:29:51Z |
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.102.062814 Physical Review A. College Pk: Amer Physical Soc, v. 102, n. 6, 20 p., 2020. 2469-9926 http://hdl.handle.net/11449/209805 10.1103/PhysRevA.102.062814 WOS:000600558000004 |
url |
http://dx.doi.org/10.1103/PhysRevA.102.062814 http://hdl.handle.net/11449/209805 |
identifier_str_mv |
Physical Review A. College Pk: Amer Physical Soc, v. 102, n. 6, 20 p., 2020. 2469-9926 10.1103/PhysRevA.102.062814 WOS:000600558000004 |
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 |
20 |
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 |
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_version_ |
1808129184473546752 |