Non-Gauss Effects in Thermal-Neutron Scattering in Liquid Argon

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概要

• 論文の詳細を見る

• The Non-Gaussian corrections have been estimated for liquid argon by using a model in which the motion of a typical atom is analyzed in terms of the dynamics of an "oscillation", a quasiparticle consisting of the atom plus a surrounding spherical shell representing the collective effect of the instantaneous near neighbours. Tne oscillatory motion of the atom inside the shell is represented by a stochastic Langevin oscillator first used by Rahman, Singwi and Sjolander. As regards the diffusive motion of the atom plus the spherical shell, a Langevin binary collision model is used. Comparison with Rahma's calculations for liquid argon shows that the agreement of velocity autocorrelation and α_2(t) has been considerably improved with the present model in comparison with the earlier Gibbs model.

• 社団法人日本物理学会の論文
• 1971-10-05

著者

• Chaturvedi D.

  Department Of Physics And Astrophysics Delhi University

• Baijal S.

  Department Of Physics And Astrophysics Delhi University

• Chaturvedi D.K.

  Department of Physics and Astrophysics, Delhi University

関連論文

• Memory Effects and Dynamical Correlations in Liquid Argon
• Calculation of the Incoherent Scattering Cross Section S_s(k, w) in Non Gaussian Approximation for Classical Liquids
• Non-Gauss Effects in Thermal-Neutron Scattering in Liquid Argon

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