http://www.cnr.it/ontology/cnr/individuo/prodotto/ID57293
Microscopic self dynamics in liquid hydrogen and in its mixtures with deuterium and neon: a neutron scattering study (Articolo in rivista)
- Type
- Label
- Microscopic self dynamics in liquid hydrogen and in its mixtures with deuterium and neon: a neutron scattering study (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10909-005-2320-1 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Celli M. (1); Colognesi D. (1); Zoppi M. (1); Ramirez-Cuesta A. J. (2) (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- fasc. (3-4). Springer. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1) CNR, IFAC, Sesto Fiorentino (FI), Italy
2) ISIS, RAL, Didcot, United Kingdom (literal)
- Titolo
- Microscopic self dynamics in liquid hydrogen and in its mixtures with deuterium and neon: a neutron scattering study (literal)
- Abstract
- By means of inelastic neutron scattering measurements, we have extracted the incoherent scattering function of liquid para-hydrogen, pure and mixed with deuterium or neon, in various thermodynamic conditions. The low-energy parts of the neutron spectra recorded in forward scattering on TOSCA-II were analyzed in the framework of the Gaussian approximation and filled through a Levesque-Vertet model for the velocity auto-correlation function. These correlation functions derived from the forward-scattering data appear totally unable to properly describe the backward-scattering ones. These findings prove a breakdown of the Gaussian approximation for semi-quantum liquids in the kinematic range of our experiment. The present results appear of extreme interest and suggest further investigation on the limits of the widely-used Gaussian approximation. (literal)
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- Autore CNR
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