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

We report dynamical calculations for large-q structure functions of liquid 4He 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 w...

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Authors: Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609, Polls Martí, Artur
Format: article
Publication Date:1998
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/381079
Online Access:https://hdl.handle.net/2117/381079
https://dx.doi.org/10.1103/PhysRevB.57.5347
Access Level:Open access
Keyword:Liquid helium
Heli líquid
Àrees temàtiques de la UPC::Física
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repository_id_str
spelling Large-q neutron inclusive-scattering data from liquid 4HeMazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609Polls Martí, ArturLiquid heliumHeli líquidÀrees temàtiques de la UPC::FísicaWe report dynamical calculations for large-q structure functions of liquid 4He 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.American Physical Society (APS)19981998-03-0120232023-01-25journal articlehttp://purl.org/coar/resource_type/c_6501AOhttp://purl.org/coar/version/c_b1a7d7d4d402bcceinfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/381079https://dx.doi.org/10.1103/PhysRevB.57.5347reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3810792026-05-27T15:37:01Z
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
Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
Liquid helium
Heli líquid
Àrees temàtiques de la UPC::Física
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 Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
Polls Martí, Artur
author Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
author_facet Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
Polls Martí, Artur
author_role author
author2 Polls Martí, Artur
author2_role author
dc.subject.none.fl_str_mv Liquid helium
Heli líquid
Àrees temàtiques de la UPC::Física
topic Liquid helium
Heli líquid
Àrees temàtiques de la UPC::Física
description We report dynamical calculations for large-q structure functions of liquid 4He 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
1998-03-01
2023
2023-01-25
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AO
http://purl.org/coar/version/c_b1a7d7d4d402bcce
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/381079
https://dx.doi.org/10.1103/PhysRevB.57.5347
url https://hdl.handle.net/2117/381079
https://dx.doi.org/10.1103/PhysRevB.57.5347
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society (APS)
publisher.none.fl_str_mv American Physical Society (APS)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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