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Karl Holinde

Bio: Karl Holinde is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Meson & Nucleon. The author has an hindex of 19, co-authored 50 publications receiving 1595 citations.
Topics: Meson, Nucleon, Pion, Hyperon, Nuclear matter

Papers
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Journal ArticleDOI
TL;DR: A meson exchange model for the hyperon-nucleon (AN, ΣN) interaction is presented in this paper, which is constructed along the same guidelines as those applied in the Bonn model for NN interaction.

303 citations

Journal ArticleDOI
TL;DR: In this article, a modified version of the J\"ulich model was proposed to describe the pole structure of the resulting scattering amplitude, and the authors investigated the structure of scalar mesons in realistic meson exchange models.
Abstract: We investigate the structure of the scalar mesons ${\mathit{f}}_{0}$(980) and ${\mathit{a}}_{0}$(980) within realistic meson-exchange models of the \ensuremath{\pi}\ensuremath{\pi} and \ensuremath{\pi}\ensuremath{\eta} interactions. Starting from a modified version of the J\"ulich model for \ensuremath{\pi}\ensuremath{\pi} scattering we perform an analysis of the pole structure of the resulting scattering amplitude and find, in contrast with existing models, a somewhat large mass for the ${\mathit{f}}_{0}$(980) (${\mathit{m}}_{\mathit{f}0}$=1015 MeV, ${\mathrm{\ensuremath{\Gamma}}}_{\mathit{f}0}$=30 MeV). It is shown that our model provides a description of J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\varphi}\ensuremath{\pi}\ensuremath{\pi}/\ensuremath{\varphi}KK data comparable in quality with those of alternative models. Furthermore, the formalism developed for the \ensuremath{\pi}\ensuremath{\pi} system is consistently extended to the \ensuremath{\pi}\ensuremath{\eta} interaction leading to a description of the ${\mathit{a}}_{0}$(980) as a dynamically generated threshold effect (which is therefore neither a conventional qq\ifmmode\bar\else\textasciimacron\fi{} state nor a KK\ifmmode\bar\else\textasciimacron\fi{} bound state). Exploring the corresponding pole position the ${\mathit{a}}_{0}$(980) is found to be rather broad (${\mathit{m}}_{\mathit{a}0}$=991 MeV, ${\mathrm{\ensuremath{\Gamma}}}_{\mathit{a}0}$=202 MeV). The experimentally observed smaller width results from the influence of the nearby KK\ifmmode\bar\else\textasciimacron\fi{} threshold on this pole.

164 citations

Journal ArticleDOI
TL;DR: In this paper, hyperon-nucleon interaction models A and B are presented, in which the explicit energy-dependence of the original models A, B of the Julich group is removed in order to simplify the application in nuclear structure calculations.

158 citations

Journal ArticleDOI
TL;DR: Nucleon-nucleon data below 300-MeV laboratory energy are described by a manifestly covariant wave equation in which one of the intermediate nucleons is restricted to its mass shell.
Abstract: Nucleon-nucleon data below 300-MeV laboratory energy are described by a manifestly covariant wave equation in which one of the intermediate nucleons is restricted to its mass shell. Antisymmetrization of the kernel yields an equation in which the two nucleons are treated in an {ital exactly} symmetric manner, and in which all amplitudes satisfy the Pauli principle {ital exactly}. The kernel is modeled by the sum of one boson exchanges, and four models, all of which fit the data very well ({chi}{sup 2}{congruent}3 per data point) are discussed. Two models require the exchange of {ital only} the {pi}, {sigma}, {rho}, and {omega}, but also require an admixture of {gamma}{sup 5} coupling for the pion, while two other models restrict the pion coupling to pure {gamma}{sup 5}{gamma}{sup {mu}}, but require the exchange of {ital six} mesons, including the {eta}, and a light scalar-isovector meson referred to as {sigma}{sub 1}. Deuteron wave functions resulting from these models are obtained. Th

156 citations

Journal ArticleDOI
TL;DR: In this paper, a dynamical model for pseudoscalar-pseudoscalar meson scattering based on meson exchange, suitable for use in a variety of low and intermediate-energy mesonic interactions, has been constructed and applied to ππ and kπ scattering with good quantitative results.

123 citations


Cited by
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TL;DR: In this article, the authors review experimental evidences of various candidates of hadronic molecules, and methods of identifying such structures Nonrelativistic effective field theories are the suitable framework for studying hadronic molecule, and are discussed in both the continuum and finite volumes.
Abstract: A large number of experimental discoveries especially in the heavy quarkonium sector that did not at all fit to the expectations of the until then very successful quark model led to a renaissance of hadron spectroscopy Among various explanations of the internal structure of these excitations, hadronic molecules, being analogues of light nuclei, play a unique role since for those predictions can be made with controlled uncertainty We review experimental evidences of various candidates of hadronic molecules, and methods of identifying such structures Nonrelativistic effective field theories are the suitable framework for studying hadronic molecules, and are discussed in both the continuum and finite volumes Also pertinent lattice QCD results are presented Further, we discuss the production mechanisms and decays of hadronic molecules, and comment on the reliability of certain assertions often made in the literature

1,016 citations

Journal ArticleDOI
Abstract: We review how nuclear forces emerge from low-energy QCD via chiral effective field theory. The presentation is accessible to the non-specialist. At the same time, we also provide considerable detailed information (mostly in appendices) for the benefit of researchers who wish to start working in this field.

883 citations

Journal ArticleDOI
TL;DR: In this article, the nuclear forces emerge from low-energy QCD via chiral eective theory, and the authors provide considerable detailed information for the benet of researchers who wish to start working in this field.

878 citations

Journal ArticleDOI
TL;DR: A review of recent applications of self-consistent relativistic mean field models to exotic nuclear structure can be found in this article, where the authors provide a rich theoretical framework for studies of nuclei along the valley of β-stability, exotic nuclei with extreme groundstate isospin values and close to the particle drip lines.

782 citations