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Article

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Published version

Publication date

1998

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10461

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

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http://dx.doi.org/10.1103/PhysRevB.57.5347

Abstract

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.

Subject

Heli líquid, Dispersió de neutrons

Subject (English)

Liquid helium, Neutrons scattering

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

RINAT, A. S., et al. Large-q neutron inclusive-scattering data from liquid 4He. Physical Review B. 1998. Vol. 57, num. 9, pags. 5347-5357. ISSN 0163-1829. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/10461

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