Evidence for Different Interaction Potentials for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>from Scattering Cross-Section Measurements
H. G. BennewitzPhysikalisches Institut der Universität Bonn, Bonn, GermanyH. BussePhysikalisches Institut der Universität Bonn, Bonn, GermanyH. D. DohmannPhysikalisches Institut der Universität Bonn, Bonn, GermanyD.E. OatesPhysikalisches Institut der Universität Bonn, Bonn, GermanyW. SchraderPhysikalisches Institut der Universität Bonn, Bonn, Germany
1972lv
ABI
Abstract
By means of low-energy cross-section measurements on ${\mathrm{He}}^{3}$-${\mathrm{He}}^{3}$, we derive an interatomic potential which has a minimum 3.4% deeper than that of ${\mathrm{He}}^{4}$-${\mathrm{He}}^{4}$. We demonstrate that the difference in the potentials is significant. The atomic-mass polarization effect is proposed as a possible explanation for the different potentials.
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Cited by 20 references