Hard Pion Chiral Perturbation Theory for $B\to \pi$ and $D\to \pi$ Formfactors

Johan Bijnens, Ilaria Jemos

We use one-loop Heavy Meson Chiral Perturbation Theory (HMCHPT) as well as a relativistic formulation to calculate the chiral logarithms $m_{\pi }^2\log \left(m_{\pi }^2/{\mu }^2\right)$ contrib…