Journal Article

FZJ-2020-01103

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Structure of single-$\Lambda$ hypernuclei with chiral hyperon–nucleon potentials

Haidenbauer, J.FZJ* ; Vidaña, I. (Corresponding author)

2020
Springer Heidelberg

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Please use a persistent id in citations: http://hdl.handle.net/2128/24809  doi:10.1140/epja/s10050-020-00055-6

Abstract: The structure of single-Λ hypernuclei is studied using the chiral hyperon-nucleon potentials derived at leading order (LO) and next-to-leading order (NLO) by the Jülich–Bonn–Munich group. Results for the separation energies of Λ single-particle states for various hypernuclei from 5ΛHe to 209ΛPb are presented for the LO interaction and the 2013 (NLO13) and 2019 (NLO19) versions of the NLO potentials. It is found that the results based on the LO potential show a clear tendency for overbinding while those for the NLO13 interaction underbind most of the considered hypernuclei. A qualitatively good agreement with the data is obtained for the NLO19 interaction over a fairly large range of mass number values when considering the uncertainty due to the regulator dependence. A small spin-orbit splitting of the p-, d-, f-, and g-wave states is predicted by all interactions, in line with the rather small values observed in pertinent experiments.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2020

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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