Hadronic decay of a scalar B meson from the lattice

Details Hadronic decay of a scalar B meson from the lattice Hadronic decay of a scalar B meson from the lattice

2004-04-08

arxiv.org/abs/hep-lat/0404010v1

Phys.Rev.D70:054501,2004

Physics

High Energy Physics

High Energy Physics - Lattice

10 pages LATEX

Scientific paper

10.1103/PhysRevD.70.054501

We explore the transitions B$(0^+)$ to B $\pi$ and B$_s(0^+)$ to B K from lattice QCD with $N_f=2$ flavours of sea quark, using the static approximation for the heavy quark. We evaluate the effective coupling constants, predicting a B$(0^+)$ to B $\pi$ width of around 160 MeV. Our result for the coupling strength adds to the evidence that the B$_s(0^+)$ meson is not predominantly a molecular state (BK).

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