A Ramsauer–Townsend effect in liquid 3He

Sandouqa, A. S.; Ghassib, H. B.; Joudeh, B. R.

doi:10.1016/j.cplett.2010.03.052

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Cited by 10 publications

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“…This can be done by solving the Lippmann-Schwinger (LS) integral equation using a matrix-inversion technique (Bishop et al, 1977). We shall treat (LS) formalism briefly-just for reference purposes and for defining the quantities involved, since this theory is well described elsewhere (Sandouqa et al, 2006;Sandouqa et al, 2010;Joudeh et al, 2010;Joudeh, 2011).…”

Section: P Cosmentioning

confidence: 99%

Scattering Properties of Spin-polarized 3He-HeII Mixtures at Low Temperature

Sandouqa¹

2012

MAS

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The cross sections and the man free path of ³He^? atoms in HeII background are calculated. The Ramsauer-Townsend effect in the cross sections is found in these mixtures at low temperatures. In the low energy limit the cross sections are dominated by the S-wave scattering. The influence of S-scattering decreases with increasing magnetic field. With increasing k, S-wave scattering tends to decrease; whereas the contribution of the higher angular-momentum waves (especially P-wave) to the scattering increases. Our results of the mean free path exhibit the ³He^? atoms propagate through the HeII background with an exceedingly long mean free path and without friction.

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