335 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of CoimbraPT197 papers
- Universidade Federal de Santa CatarinaBR23 papers
- Instituto Superior TécnicoPT20 papers
- Joint Institute for Nuclear ResearchRU17 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- University of LisbonPT12 papers
- Instituto Tecnológico de AeronáuticaBR8 papers
- Universidade Federal de Minas GeraisBR8 papers
- Universidade de São PauloBR7 papers
- Universidade Federal do ABCBR7 papers
- Bogolyubov Institute for Theoretical PhysicsUA6 papers
- Ghent UniversityBE6 papers
9 papers · 1 filter
Kaons and pions in strange quark matter
Pedro Costa, Maria C. Ruivo
The behavior of kaons and pions in strange quark matter in weak equilibrium, is investigated within the SU(3) Nambu-Jona-Lasinio [NJL] model. This work focuses a region of high den…
On the dominance of non-exotic meson-meson scattering by s-channel qqbar confinement states and the classification of the scalar mesons
Eef van Beveren, George Rupp
Non-exotic scalar-meson resonances in S-wave meson-meson scattering are studied in the light of a unitarised Schroedinger model. The resulting poles in the scattering matrices, by…
Implications of a New Effective Chiral Meson Lagrangian
Alexander A. Osipov, Marcos Sampaio, Brigitte Hiller
Based on a recently derived effective chiral meson Lagrangian from the extended SU(2)\otimes SU(2) Nambu -- Jona-Lasinio (ENJL) model, in the linear realization of chiral symmetry,…
Caloric curve for finite nuclei in relativistic models
D. P. Menezes, C. Providencia
In this work we calculate the caloric curve (excitation energy per particle as a function of temperature) for finite nuclei within the non--linear Walecka model for different proto…
Relativistic Thomas-Fermi description of Sm isotopes at finite temperature
C. Providencia, D. P. Menezes, L. Brito
The caloric curve (excitation energy per particle as a function of temperature) for finite nuclei is calculated within the non-linear Walecka model for different proton fractions a…
Large Mass Invariant Asymptotics of the Effective Action
Alexander A. Osipov, Brigitte Hiller
We study the large mass asymptotics of the Dirac operator with a nondegenerate mass matrix m={diag}(m_1,m_2,m_3) in the presence of scalar and pseudoscalar background fields taking…
Modified Breit-Wigner formula for mesonic resonances describing OZI decays of confined states and the light scalar mesons
Eef van Beveren, George Rupp
A general expression resembling Breit-Wigner formulae is derived for the description of resonances which appear in meson-meson scattering. Starting point is a unitarised meson mode…
Inverse Mass Expansion of the One-Loop Effective Action
Alexander A. Osipov, Brigitte Hiller
A method is described for the development of the one-loop effective action expansion as an asymptotic series in inverse powers of the fermion mass. The method is based on the Schwi…
Comment on Intrinsic and dynamically generated scalar meson states
George Rupp, Eef van Beveren, Michael D. Scadron
The scalar-meson assignments of Shakin and Wang in a generalized Nambu--Jona-Lasinio model are contradicted by recent experimental information. Also the strict distinction made by…