The Scattering Properties of Gaseous Parahydrogen

In this work, the scattering properties of parahydrogen gas ( p -H 2 ) are studied in the temperature-range (1–50) K. These properties are investigated within the framework of the Lippmann–Schwinger formalism for p -H 2 . This formalism is used to calculate the phase shifts. The calculations are und...

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Bibliographic Details
Published in:Journal of low temperature physics 2021-04, Vol.203 (1-2), p.74-83
Main Authors: Alzboun, A. A., Al-Maaitah, A. F., Sandouqa, A. S.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Computation
Condensed Matter Physics
Cross-sections
Formalism
Low temperature physics
Magnetic Materials
Magnetism
Mathematical analysis
Physics
Physics and Astronomy
Properties (attributes)
Wave scattering
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Summary:In this work, the scattering properties of parahydrogen gas ( p -H 2 ) are studied in the temperature-range (1–50) K. These properties are investigated within the framework of the Lippmann–Schwinger formalism for p -H 2 . This formalism is used to calculate the phase shifts. The calculations are undertaken using Silvera - Goldman potential. The scattering properties of the system—the total, viscosity, and average cross sections—are then computed using these phase shifts. The s-wave scattering length for p -H 2 molecules a o is determined as a o  = 7.01 Å. The cross sections exhibited the Ramsauer–Townsend effect and resonance peaks. The lifetime of the quasi-bound states for ℓ - w a v e ℓ = 2 , 4, and 6 is also computed.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-021-02569-9