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Ab Initio Description of p-Shell Hypernuclei

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    SYSNO ASEP0440127
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleAb Initio Description of p-Shell Hypernuclei
    Author(s) Wirth, R. (DE)
    Gazda, Daniel (UJF-V) RID, ORCID, SAI
    Navratil, P. (CA)
    Calci, A. (DE)
    Langhammer, J. (DE)
    Roth, R. (DE)
    Number of authors6
    Source TitlePhysical Review Letters. - : American Physical Society - ISSN 0031-9007
    Roč. 113, č. 19 (2014), s. 192502
    Number of pages6 s.
    Publication formPrint - P
    Languageeng - English
    CountryUS - United States
    Keywordseffective field theory ; strangeness nuclear-physics ; lambda-hypernuclei
    Subject RIVBE - Theoretical Physics
    R&D ProjectsGAP203/12/2126 GA ČR - Czech Science Foundation (CSF)
    LG14038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUJF-V - RVO:61389005
    UT WOS000344496600007
    EID SCOPUS84910045738
    DOI10.1103/PhysRevLett.113.192502
    AnnotationWe present the first ab initio calculations for p-shell single-Lambda hypernuclei. For the solution of the many-baryon problem, we develop two variants of the no-core shell model with explicit Lambda and Sigma(+); Sigma(0), Sigma(-) Shyperons including Lambda-Sigma conversion, optionally supplemented by a similarity renormalization group transformation to accelerate model-space convergence. In addition to state-of-the-art chiral two- and three-nucleon interactions, we use leading-order chiral hyperon-nucleon interactions and a recent meson-exchange hyperon-nucleon interaction. We validate the approach for s-shell hypernuclei and apply it to p-shell hypernuclei, in particular to Li-7(Lambda), Be-9(Lambda), and C-13(Lambda). We show that the chiral hyperon-nucleon interactions provide ground-state and excitation energies that generally agree with experiment within the cutoff dependence. At the same time we demonstrate that hypernuclear spectroscopy provides tight constraints on the hyperon-nucleon interactions.
    WorkplaceNuclear Physics Institute
    ContactMarkéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
    Year of Publishing2015
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