Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy

8 pages, 5 figures.-- PACS nrs.: 34.50 Ez.

Detalles Bibliográficos
Autores: Maté, Belén, Thibault, Franck, Tejeda, Guzmán, Fernández Sánchez, José María, Montero, Salvador
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/8889
Acceso en línea:http://hdl.handle.net/10261/8889
Access Level:acceso abierto
Palabra clave:Molecule-molecule collisions
Rotational-vibrational energy transfer
Hydrogen neutral molecules
Ground states
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spelling Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energyMaté, BelénThibault, FranckTejeda, GuzmánFernández Sánchez, José MaríaMontero, SalvadorMolecule-molecule collisionsRotational-vibrational energy transferHydrogen neutral moleculesGround states8 pages, 5 figures.-- PACS nrs.: 34.50 Ez.We report an experimental determination of the k(00-->02) rate coefficient for inelastic H2:H2 collisions in the temperature range from 2 to 110 K based on Raman spectroscopy data in supersonic expansions of para-H2. For this purpose a more accurate method for inverting the master equation of rotational populations is presented. The procedure permits us to reduce the measured k(00-->02) rate coefficient to the corresponding σ(00-->02) cross section in the range of precollisional energy from 360 to 600 cm–1. Numerical calculations of σ(00-->02) carried out in the frame of the coupled channel method are also reported for different intermolecular potentials of H2. A good agreement is found between the experimental cross section and the numerical one derived from Diep and Johnson's potential [J. Chem. Phys. 112, 4465 (2000)].This work was supported by the Spanish Ministerio de Ciencia y Tecnología, Research Project No. BFM2001-2276.Peer reviewedAmerican Institute of Physics200820082005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501127771 bytesapplication/pdfhttp://hdl.handle.net/10261/8889reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1063/1.1850464info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/88892026-05-22T06:33:51Z
dc.title.none.fl_str_mv Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
title Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
spellingShingle Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
Maté, Belén
Molecule-molecule collisions
Rotational-vibrational energy transfer
Hydrogen neutral molecules
Ground states
title_short Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
title_full Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
title_fullStr Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
title_full_unstemmed Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
title_sort Inelastic collisions in para-H2: Translation-rotation state-to-state rate coefficients and cross sections at low temperature and energy
dc.creator.none.fl_str_mv Maté, Belén
Thibault, Franck
Tejeda, Guzmán
Fernández Sánchez, José María
Montero, Salvador
author Maté, Belén
author_facet Maté, Belén
Thibault, Franck
Tejeda, Guzmán
Fernández Sánchez, José María
Montero, Salvador
author_role author
author2 Thibault, Franck
Tejeda, Guzmán
Fernández Sánchez, José María
Montero, Salvador
author2_role author
author
author
author
dc.subject.none.fl_str_mv Molecule-molecule collisions
Rotational-vibrational energy transfer
Hydrogen neutral molecules
Ground states
topic Molecule-molecule collisions
Rotational-vibrational energy transfer
Hydrogen neutral molecules
Ground states
description 8 pages, 5 figures.-- PACS nrs.: 34.50 Ez.
publishDate 2005
dc.date.none.fl_str_mv 2005
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/8889
url http://hdl.handle.net/10261/8889
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1063/1.1850464
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 127771 bytes
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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score 15.81155

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