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Ab Initio Description of p-Shell Hypernuclei
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SYSNO ASEP 0440127 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ab 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 authors 6 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 113, č. 19 (2014), s. 192502Number of pages 6 s. Publication form Print - P Language eng - English Country US - United States Keywords effective field theory ; strangeness nuclear-physics ; lambda-hypernuclei Subject RIV BE - Theoretical Physics R&D Projects GAP203/12/2126 GA ČR - Czech Science Foundation (CSF) LG14038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UJF-V - RVO:61389005 UT WOS 000344496600007 EID SCOPUS 84910045738 DOI 10.1103/PhysRevLett.113.192502 Annotation We 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. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2015
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