Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-03-12
Phys.Rev. D70 (2004) 034031
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, no figures
Scientific paper
10.1103/PhysRevD.70.034031
We analyze the recently proposed Spectral Quark Model in the light of Chiral Perturbation Theory in curved space-time. In particular, we calculate the chiral coefficients $L_1, ..., L_{10}$, as well as the coefficients $L_{11}$, $L_{12}$, and $L_{13}$, appearing when the model is coupled to gravity. The analysis is carried for the SU(3) case. We analyze the pattern of chiral symmetry breaking as well as elaborate on the fulfillment of anomalies. Matching the model results to resonance meson exchange yields the relation between the masses of the scalar, tensor and vector mesons, $M_{f_0}=M_{f_2}=\sqrt{2} M_V= 4 \sqrt{3 /N_c} \pi f_\pi$. Finally, the large-$N_c$ limit suggests the dual relations in the vector and scalar channels, $M_V=M_S= 2 \sqrt{6 /N_c} \pi f_\pi $ and $
Arriola Enrique Ruiz
Broniowski Wojciech
Megias Eugenio
Salcedo L. L.
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