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Cold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23

dc.contributor.authorShalchi, M. A. [UNESP]
dc.contributor.authorYamashita, M. T. [UNESP]
dc.contributor.authorFrederico, T.
dc.contributor.authorTomio, Lauro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Tecnol Aeronaut
dc.date.accessioned2021-06-25T12:29:51Z
dc.date.available2021-06-25T12:29:51Z
dc.date.issued2020-12-17
dc.description.abstractAtom-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.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
dc.description.affiliationInst Tecnol Aeronaut, DCTA, BR-12228900 Sao Jose Dos Campos, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2017/056600
dc.description.sponsorshipIdFAPESP: 2019/00153-8
dc.description.sponsorshipIdCNPq: 303579/2019-6
dc.description.sponsorshipIdCNPq: 308486/2015-3
dc.description.sponsorshipIdCNPq: 304469-2019-0
dc.description.sponsorshipIdCNPq: INCT-FNA 464898/2014-5
dc.format.extent20
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.102.062814
dc.identifier.citationPhysical Review A. College Pk: Amer Physical Soc, v. 102, n. 6, 20 p., 2020.
dc.identifier.doi10.1103/PhysRevA.102.062814
dc.identifier.issn2469-9926
dc.identifier.urihttp://hdl.handle.net/11449/209805
dc.identifier.wosWOS:000600558000004
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review A
dc.sourceWeb of Science
dc.titleCold-atom-dimer reaction rates with He-4, Li-6,Li-7, and Na-23en
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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