Calculation of the cross section of epithermal neutron scattering from water by a time-dependent wavepacket approach

Seiichi Tanabe, Kunihito Hoki, Hirohiko Kono, Yuichi Fujimura

Research output: Contribution to journalArticle

Abstract

An expression for an epithermal neutron scattering cross section from a water cluster is derived by using a time-dependent wavepacket approach. Both the translational motion of the center of mass of the cluster and the vibrational modes of a proton in the cluster are taken into account. Incident energy dependence on the neutron-proton scattering cross sections calculated for a simplified cluster model agrees with experimental results of neutron scattering from water. Time correlation functions of momentum transfer clearly show that both the translational and vibrational motions significantly contribute to the scattering cross section in the low energy regime.

Original languageEnglish
Pages (from-to)267-271
Number of pages5
JournalChemical Physics Letters
Volume437
Issue number4-6
DOIs
Publication statusPublished - 2007 Apr 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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