Chiral Perturbation Theory for Tensor Mesons

Details Chiral Perturbation Theory for Tensor Mesons Chiral Perturbation Theory for Tensor Mesons

1997-08-15

arxiv.org/abs/hep-ph/9708355v1

JHEP 9805:010,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 9 pages, no figures

Scientific paper

10.1088/1126-6708/1998/05/010

Interactions of $a_2, K^*_2, f_2$ and $f_2'$ tensor-mesons with low-energy $\pi, K, \eta, \eta'$ pseudo-scalar mesons are constrained by chiral symmetry. We derive a chiral Lagrangian of tensor mesons in which the tensor mesons are treated as heavy non-relativistic matter fields. Using $1/N_c$ counting, we derive relations among unknown couplings of the chiral Lagrangian. Chiral perturbation theory is applied to the tensor-meson mass matrix. At one-loop there are large corrections to the individual tensor meson masses, but the singlet-octet mixing angle remains almost unchanged. We argue that all heavy mesons of spin $\ge 1$ share common feature of chiral dynamics.

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