eta-nuclear bound states revisited

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F13%3A00397830" target="_blank" >RIV/61389005:_____/13:00397830 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2013.07.035" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2013.07.035</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2013.07.035" target="_blank" >10.1016/j.physletb.2013.07.035</a>

Result language
angličtina
Original language name
eta-nuclear bound states revisited
Original language description
he strong energy dependence of the s-wave eta N scattering amplitude at and below threshold, as evident in coupled-channels K-matrix fits and chiral models that incorporate the S-11 N*(1535) resonance, is included self-consistently in eta-nuclear bound-state calculations. This approach, applied recently in calculations of kaonic atoms and (K) over bar -nuclear bound states, is found to impose stronger constraints than ever on the onset of eta-nuclear binding, with a minimum value of Rea(eta N) approximate to 0.9 fm required to accommodate an eta-He-4 bound state. Binding energies and widths of eta-nuclear states are calculated within several underlying eta N models for nuclei across the periodic table, including Mg-25(eta) for which some evidence was proposed in a recent COSY experiment.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Project
<a href="/en/project/GAP203%2F12%2F2126" target="_blank" >GAP203/12/2126: Microscopic models for the description of hadronic systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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