Large-q neutron inclusive-scattering data from liquid 4He

We report dynamical calculations for large- q structure functions of liquid 4 He at T = 1.6 and 2.3 K and compare those with recent MARI data. We extend those calculations far beyond the experimental range q <~ 29 Å − 1 in order to study the approach of the response to its asymptotic limit for a...

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Detalles Bibliográficos
Autores: Rinat, A. S., Tarangin, M. F., Mazzanti Castrillejo, Ferran, Polls Martí, Artur
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1998
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/10461
Acceso en línea:https://hdl.handle.net/2445/10461
Access Level:acceso abierto
Palabra clave:Heli líquid
Dispersió de neutrons
Liquid helium
Neutrons scattering
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spelling Large-q neutron inclusive-scattering data from liquid 4HeRinat, A. S.Tarangin, M. F.Mazzanti Castrillejo, FerranPolls Martí, ArturHeli líquidDispersió de neutronsLiquid heliumNeutrons scatteringWe report dynamical calculations for large- q structure functions of liquid 4 He at T = 1.6 and 2.3 K and compare those with recent MARI data. We extend those calculations far beyond the experimental range q <~ 29 Å − 1 in order to study the approach of the response to its asymptotic limit for a system with interactions having a strong short-range repulsion. We find only small deviations from theoretical 1 / q behavior, valid for smooth V . We repeat an extraction by Glyde et al. of cumulant coefficients from data which are invariably very well reproduced. We argue that fits determine the single atom momentum distribution, but express doubt as to the extraction of meaningful final state interaction parameters.The American Physical Society1998info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/10461Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.57.5347Physical Review B, 1998, vol. 57, núm. 9, p. 5347-5357http://dx.doi.org/10.1103/PhysRevB.57.5347(c) The American Physical Society, 1998info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/104612026-05-27T06:46:51Z
dc.title.none.fl_str_mv Large-q neutron inclusive-scattering data from liquid 4He
title Large-q neutron inclusive-scattering data from liquid 4He
spellingShingle Large-q neutron inclusive-scattering data from liquid 4He
Rinat, A. S.
Heli líquid
Dispersió de neutrons
Liquid helium
Neutrons scattering
title_short Large-q neutron inclusive-scattering data from liquid 4He
title_full Large-q neutron inclusive-scattering data from liquid 4He
title_fullStr Large-q neutron inclusive-scattering data from liquid 4He
title_full_unstemmed Large-q neutron inclusive-scattering data from liquid 4He
title_sort Large-q neutron inclusive-scattering data from liquid 4He
dc.creator.none.fl_str_mv Rinat, A. S.
Tarangin, M. F.
Mazzanti Castrillejo, Ferran
Polls Martí, Artur
author Rinat, A. S.
author_facet Rinat, A. S.
Tarangin, M. F.
Mazzanti Castrillejo, Ferran
Polls Martí, Artur
author_role author
author2 Tarangin, M. F.
Mazzanti Castrillejo, Ferran
Polls Martí, Artur
author2_role author
author
author
dc.subject.none.fl_str_mv Heli líquid
Dispersió de neutrons
Liquid helium
Neutrons scattering
topic Heli líquid
Dispersió de neutrons
Liquid helium
Neutrons scattering
description We report dynamical calculations for large- q structure functions of liquid 4 He at T = 1.6 and 2.3 K and compare those with recent MARI data. We extend those calculations far beyond the experimental range q <~ 29 Å − 1 in order to study the approach of the response to its asymptotic limit for a system with interactions having a strong short-range repulsion. We find only small deviations from theoretical 1 / q behavior, valid for smooth V . We repeat an extraction by Glyde et al. of cumulant coefficients from data which are invariably very well reproduced. We argue that fits determine the single atom momentum distribution, but express doubt as to the extraction of meaningful final state interaction parameters.
publishDate 1998
dc.date.none.fl_str_mv 1998
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/10461
url https://hdl.handle.net/2445/10461
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.57.5347
Physical Review B, 1998, vol. 57, núm. 9, p. 5347-5357
http://dx.doi.org/10.1103/PhysRevB.57.5347
dc.rights.none.fl_str_mv (c) The American Physical Society, 1998
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 1998
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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