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arXiv · 1505.03927

Momentum-space calculation of ${}^4$He triatomic system with realistic potential

A. Deltuva
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Abstract

The system of three ${}^4\mathrm{He}$ atoms with realistic interactions is studied in the momentum-space framework. It is demonstrated that short and long-range difficulties encountered in the coordinate-space calculations can be reliably resolved in the momentum-space calculations. Well-converged and accurate results are obtained for the ground and excited trimer energies, atom-dimer scattering length, phase shifts, inelasticity parameters, and elastic and breakup cross sections. A significant correction to previously published results is found for the elastic cross section at very low energy.

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A. Deltuva. 2015-05-15. Momentum-space calculation of ${}^4$He triatomic system with realistic potential. https://doi.org/10.1007/s00601-015-1006-8

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