output
19932022
most citedNeutron star radii and crusts: uncertainties and unified equations of state

335 citations

Showing 2001Show all

9 papers · 1 filter

hep-ph2001★ 11 cited

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…

hep-ph2001★ 4 cited

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…

hep-ph2001★ 11 cited

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,…

nucl-th2001★ 15 cited

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…

nucl-th2001★ 6 cited

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…

hep-th2001★ 26 cited

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…

hep-ex2001★ 47 cited

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…

hep-th2001★ 26 cited

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…

hep-ph2001★ 8 cited

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…