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arXiv · 2202.12356

Constraints on the Lambda-neutron interaction from charge-symmetry breaking of A=4 hypernuclei

Andreas Nogga·Johann Haidenbauer·Ulf-G. Meißner
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Abstract

We include the leading charge symmetry breaking contributions into the hyperon-nucleon interactions derived within chiral effective field theory up to next-to-leading order. Two low energy constants are determined using the experimentally known differences of Lambda separation energies of 4-Lambda-He and 4-Lambda-H. This allows one to predict the Lambda-neutron scattering lengths for the first time based on data. Various sources of uncertainty are discussed.

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Andreas Nogga, Johann Haidenbauer, Ulf-G. Meißner. 2022-02-24. Constraints on the Lambda-neutron interaction from charge-symmetry breaking of A=4 hypernuclei. https://arxiv.org/abs/2202.12356

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