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Low-momentum Hyperon-Nucleon Interactions

B. -J. Schaefer·M. Wagner·J. Wambach·T. T. S. Kuo·G. E. Brown
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Abstract

We present a first exploratory study for hyperon-nucleon interactions using renormalization group techniques. The effective two-body low-momentum potential V_low-k is obtained by integrating out the high-momentum components from realistic Nijmegen YN potentials. A T-matrix equivalence approach is employed, so that the low-energy phase shifts are reproduced by V_low-k up to a momentum scale Lambda ~ 500 MeV. Although the various bare Nijmegen models differ somewhat from each other, the corresponding V_low-k interactions show convergence in some channels, suggesting a possible unique YN interaction at low momenta.

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B. -J. Schaefer, M. Wagner, J. Wambach, T. T. S. Kuo, G. E. Brown. 2005-06-22. Low-momentum Hyperon-Nucleon Interactions. https://doi.org/10.1103/physrevc.73.011001

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