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arXiv · hep-ph/0307044

Scalar Form Factors in SU(3) Chiral Perturbation Theory

Johan Bijnens·Pierre Dhonte
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Abstract

The scalar form factors for the pions and kaons are calculated in SU(3) Chiral Perturbation Theory at order $p^6$, in the isospin limit $m_u=m_d=\hat{m}$. We find in general sizable corrections of $\mathcal{O}(p^6)$. We use our results to obtain results on the $1/N_c$ suppressed low energy constants $L_4^r$ and $L_6^r$ as well as on two $\mathcal{O}(p^6)$ low energy constants. We present some numerical results for masses and decay constants as well. We derive a relation for the scalar form factors analogous to Sirlin's relation for vector form factors.

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Johan Bijnens, Pierre Dhonte. 2003-11-19. Scalar Form Factors in SU(3) Chiral Perturbation Theory. https://doi.org/10.1088/1126-6708%2F2003%2F10%2F061

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