Constraints on the Lambda-neutron interaction from charge-symmetry breaking of A=4 hypernuclei
| Autor: | Nogga, Andreas, Haidenbauer, Johann, Meißner, Ulf-G. |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | 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. Comment: 10 pages, 2 figures, contribution to Chiral Dynamics 2021 |
| Databáze: | arXiv |
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