Number of the records: 1
Eta-mesic nuclei
- 1.
SYSNO ASEP 0489153 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Eta-mesic nuclei Author(s) Cieplý, Aleš (UJF-V) RID, ORCID, SAI
Mareš, Jiří (UJF-V) RID, ORCID
Schäfer, Martin (UJF-V) ORCID, RID
Barnea, N. (IL)
Bazak, B. (IL)
Friedman, E. (IL)
Gal, A. (IL)Number of authors 7 Article number 203 Source Title Proceedings of Science, Hadron 2017, 310. - Trieste : SISSA, 2018 - ISSN 1824-8039 Number of pages 7 s. Publication form Print - P Action XVII International Conference on Hadron Spectroscopy and Structure (Hadron2017) Event date 25.09.2017 - 29.09.2017 VEvent location Salamanca Country ES - Spain Event type WRD Language eng - English Country IT - Italy Keywords eta nuclear state ; nuclei ; eta meson Subject RIV BE - Theoretical Physics OECD category Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) R&D Projects GA15-04301S GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 DOI 10.22323/1.310.0203 Annotation In this contribution we report on theoretical studies of eta nuclear quasi-bound states in few- and many-body systems performed recently by the Jerusalem-Prague Collaboration . Underlying energy-dependent eta N interactions are derived from coupled-channel models that incorporate the N*(1535) resonance. The role of self-consistent treatment of the strong energy dependence of subthreshold eta N amplitudes is discussed. Quite large downward energy shift together with rapid decrease of the eta N amplitudes below threshold result in relatively small binding energies and widths of the calculated eta nuclear bound states. We argue that the subthreshold behavior of eta N scattering amplitudes is crucial to conclude whether eta nuclear states exist, in which nuclei the eta meson could be bound and if the corresponding widths are small enough to allow detection of these eta nuclear states in experiment. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2019
Number of the records: 1