%0 Generic %1 Friedman2013Eta %A Friedman, E. %A Gal, A. %A Mares, J. %D 2013 %K eta %T Eta nuclear bound states revisited %U http://arxiv.org/abs/1304.6558 %X The 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 S11 N*(1535) resonance, is included self consistently in eta-nuclear bound state calculations. This approach, applied recently in calculations of kaonic atoms and Kbar-nuclear bound states, is found to impose stronger constraints than ever on the onset of eta-nuclear binding, with a minimum value of Re a\_eta N approximately 0.9 fm required to accommodate an eta-4He 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 eta-25Mg for which some evidence was proposed in a recent COSY experiment.

@misc{Friedman2013Eta, abstract = {The 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 S11 N*(1535) resonance, is included self consistently in eta-nuclear bound state calculations. This approach, applied recently in calculations of kaonic atoms and Kbar-nuclear bound states, is found to impose stronger constraints than ever on the onset of eta-nuclear binding, with a minimum value of Re a\_{eta N} approximately 0.9 fm required to accommodate an eta-4He 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 eta-25Mg for which some evidence was proposed in a recent COSY experiment.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Friedman, E. and Gal, A. and Mare\v{s}, J.}, biburl = {https://www.bibsonomy.org/bibtex/225313f6ef744ef207b1965672703b34d/cmcneile}, citeulike-article-id = {12311950}, citeulike-linkout-0 = {http://arxiv.org/abs/1304.6558}, citeulike-linkout-1 = {http://arxiv.org/pdf/1304.6558}, day = 24, eprint = {1304.6558}, interhash = {5bbfa59fccc15ebe649a40c12dc00dd0}, intrahash = {25313f6ef744ef207b1965672703b34d}, keywords = {eta}, month = apr, posted-at = {2013-04-30 11:28:06}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{Eta nuclear bound states revisited}}, url = {http://arxiv.org/abs/1304.6558}, year = 2013 }