M. Nagy

activity

19982005

collaborators

Showing hep-phShow all

9 papers · 1 filter

hep-ph2005

Constituent quark-based linear $σ$ model (L $σ$ M) quark and scalar mesons, vector meson dominance

Michael D. Scadron, Miroslav Nagy

After describing the SU(2) linear sigma model (L $σ$ M), we dynamically generate it using the B.W. Lee null tadpole sum (characterizing the true vacuum) together with the dimensional…

hep-ph2004

Pion nucleon coupling constant, Goldberger-Treiman discrepancy and $π N$ $σ$ term

Miroslav Nagy, Michael D. Scadron, Gerald E. Hite

We start by studying the Goldberger-Treiman discrepancy (GTd) $Δ = (2.259 \pm 0.591)$ . Then we look at the $π N$ $σ$ term, with the dimensionless ratio $σ_{N} /2 m_{N} = 3.35$ . Finally we r…

hep-ph2003

On the nature of $f_{0}$ mesons below 1.9 GeV and lower scalar nonets

Yu. S. Surovtsev, D. Krupa, M. Nagy

The combined 3-channel analysis of experimental data on the coupled processes $π π \to π π, K K ˉ, η η$ is carried out in the channel with the vacuum quantum numbers. An approach, usin…

hep-ph2003

Mesons of the $f_{0}$ -family in the processes $π π \to π π, K K ˉ, η η$ up to 1.9 GeV

Yu. S. Surovtsev, D. Krupa, M. Nagy

In combined 2- and 3-channel analyses of experimental data on the coupled processes $π π \to π π, K K ˉ, η η$ in the channel with $I^{G} J^{P C} = 0^{+} 0^{++}$ , various scenarios of these reac…

hep-ph2002

Mesons of the $f_{0}$ family in processes $π π \to π π, K K ˉ$ up to 2 GeV and chiral symmetry

Yu. S. Surovtsev, D. Krupa, M. Nagy

In a combined analysis of the experimental data on the coupled processes $π π \to π π, K K ˉ$ in the channel with $I^{G} J^{P C} = 0^{+} 0^{++}$ , the various scenarios of these reactions (wit…

hep-ph2001

Model-independent approach as a tool of studying chiral symmetry

Yu. S. Surovtsev, D. Krupa, M. Nagy

A simultaneous analysis (in the model-independent approach) of the $π π$ scattering (from the threshold to 1.9 GeV) and of the $π π \to K K$ process (from the threshold to $…

Constituent quark-based linear σ model (LσM) quark and scalar mesons, vector meson dominance

Pion nucleon coupling constant, Goldberger-Treiman discrepancy and πN σ term

On the nature of f0​ mesons below 1.9 GeV and lower scalar nonets

Mesons of the f0​-family in the processes ππ→ππ,KKˉ,ηη up to 1.9 GeV

Mesons of the f0​ family in processes ππ→ππ,KKˉ up to 2 GeV and chiral symmetry

Model-independent approach as a tool of studying chiral symmetry

Constituent quark-based linear $σ$ model (L $σ$ M) quark and scalar mesons, vector meson dominance

Pion nucleon coupling constant, Goldberger-Treiman discrepancy and $π N$ $σ$ term

On the nature of $f_{0}$ mesons below 1.9 GeV and lower scalar nonets

Mesons of the $f_{0}$ -family in the processes $π π \to π π, K K ˉ, η η$ up to 1.9 GeV

Mesons of the $f_{0}$ family in processes $π π \to π π, K K ˉ$ up to 2 GeV and chiral symmetry