J/MNRAS/449/3323ivo://CDS.VizieR/J/MNRAS/449/3323doi:10.26093/cds/vizier.74493323CDSBelyaev A.K.Rodionov D.S.Augustovivcova L.Soldan P.Kraemer W.P.2024-08-14T20:21:15Z2015-04-13T11:43:02ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsA full quantum study of non-radiative inelastic processes in lithium-helium ion-atom collisions is presented. The study uses the 13 lowest-lying electronic molecular states of LiHe^+^ of the ^1^{Sigma}^+^, ^3^{Sigma}^+^, ^1^{Pi}, and ^3^{Pi} symmetries. Radial non-adiabatic coupling matrix elements between states of the same symmetry are calculated. Quantum non-adiabatic nuclear dynamics is studied by the reprojection method, which takes into account all non-adiabatic couplings, including those that exhibit non-vanishing asymptotic values. The energy dependence of the cross-sections and temperature dependence of the rate coefficients for all partial processes between the scattering channels is determined. It is shown that the temperature dependence of rate coefficients for the non-radiative and the radiative processes behave differently: the non-radiative rate coefficients increase with increasing temperature, while the radiative rate coefficients decrease. Consequently, in the depopulation of the same scattering channel the non-radiative processes dominate in high-temperature environments, whereas at low temperature, such as in interstellar molecular clouds, the radiative processes are typically more efficient.2015MNRAS.449.3323Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/3323CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/449/3323https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/3323http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/3323https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/3323https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/3323http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/3323GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/449/3323/table1The lithium-helium ion-atom scattering channels, the corresponding molecular states, and the calculated and experimental asymptotic energiesScChScattering channelsmeta.id;phys.molMSMolecular statesphysrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintChChannel numbermeta.idintEcalCalculation asymptotic energy (1)eVphys.energy;phys.atmol.leveldoubleEexpExperiment asymptotic energy (2)eVphys.energy;phys.atmol.leveldoubleratesAll collision rates for this channel as a function of temperaturemeta.ref.urlcharJ/MNRAS/449/3323/ratesTotal and partial rates as a function of temperature (tables 2 and 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recorddoubleTTemperature (between 100K and 10^6^K)Kphys.temperaturefloattcr2Total rate coefficient for transitions from channel 2cm**3.s**-1arith.ratedoubletcr3Total rate coefficient for transitions from channel 3cm**3.s**-1arith.ratedoubletcr4Total rate coefficient for transitions from channel 4cm**3.s**-1arith.ratedoubletcr5Total rate coefficient for transitions from channel 5cm**3.s**-1arith.ratedoubletcr6Total rate coefficient for transitions from channel 6cm**3.s**-1arith.ratedoubletcr7Total rate coefficient for transitions from channel 7cm**3.s**-1arith.ratedoubleprc23Partial rate coefficient for transition from 2 to 3cm**3.s**-1arith.ratedoubleprc24Partial rate coefficient for transition from 2 to 4cm**3.s**-1arith.ratedoubleprc25Partial rate coefficient for transition from 2 to 5cm**3.s**-1arith.ratedoubleprc26Partial rate coefficient for transition from 2 to 6cm**3.s**-1arith.ratedoubleprc27Partial rate coefficient for transition from 2 to 7cm**3.s**-1arith.ratedoubleprc32Partial rate coefficient for transition from 3 to 2cm**3.s**-1arith.ratedoubleprc35Partial rate coefficient for transition from 3 to 5cm**3.s**-1arith.ratedoubleprc36Partial rate coefficient for transition from 3 to 6cm**3.s**-1arith.ratedoubleprc42Partial rate coefficient for transition from 4 to 2cm**3.s**-1arith.ratedoubleprc46Partial rate coefficient for transition from 4 to 6cm**3.s**-1arith.ratedoubleprc47Partial rate coefficient for transition from 4 to 7cm**3.s**-1arith.ratedoubleprc52Partial rate coefficient for transition from 5 to 2cm**3.s**-1arith.ratedoubleprc53Partial rate coefficient for transition from 5 to 3cm**3.s**-1arith.ratedoubleprc56Partial rate coefficient for transition from 5 to 6cm**3.s**-1arith.ratedoubleprc62Partial rate coefficient for transition from 6 to 2cm**3.s**-1arith.ratedoubleprc63Partial rate coefficient for transition from 6 to 3cm**3.s**-1arith.ratedoubleprc64Partial rate coefficient for transition from 6 to 4cm**3.s**-1arith.ratedoubleprc65Partial rate coefficient for transition from 6 to 5cm**3.s**-1arith.ratedoubleprc67Partial rate coefficient for transition from 6 to 7cm**3.s**-1arith.ratedoubleprc72Partial rate coefficient for transition from 7 to 2cm**3.s**-1arith.ratedoubleprc74Partial rate coefficient for transition from 7 to 4cm**3.s**-1arith.ratedoubleprc76Partial rate coefficient for transition from 7 to 6cm**3.s**-1arith.ratedouble