Lattice calculations of Ds to eta and eta' decay form factors [PDF]
Issaku KanamoriWe report on lattice results of the form factors for semi-leptonic decays of the D_s meson to eta and eta', with n_f=2+1 configurations. The calculation contains disconnected fermion loop diagrams, which are challenging to calculate on the lattice. Our result shows that the disconnected diagrams give significant contributions to the form factors.View original: http://arxiv.org/abs/1302.6087
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