The Energy Momentum Tensor of Chiral Quark Models at Low Energies

Details The Energy Momentum Tensor of Chiral Quark Models at Low Energies The Energy Momentum Tensor of Chiral Quark Models at Low Energies

2005-04-28

arxiv.org/abs/hep-ph/0504271v2

Phys.Rev. D72 (2005) 014001

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages. References added. To appear in Physical Review D

Scientific paper

10.1103/PhysRevD.72.014001

The low energy structure of the energy momentum tensor in several chiral quark models with SU(3) flavor symmetry is analyzed in the presence of external gravitational fields. To this end a derivative expansion in a curved four dimensional space time is considered. This allows us to compute the chiral coefficients $L_{11}$, $L_{12}$, and $L_{13}$, appearing when the model is coupled to gravity and related to space-time curvature properties.

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