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Showing 1998 · hep-phShow all
3 papers · 2 filters
hep-ph1998★ 11 cited
Possible large direct CP asymmetry in hadronic B+- -> π+- η' decays
Mohammad R. Ahmady, Emi Kou
We calculate the branching ratio and direct CP asymmetry in nonleptonic two body B decays B^+- ->π^+- η'. It is shown that the tree diagram and gluon fusion mechanism via penguin d…
hep-ph1998★ 66 cited
Lattice Determination of Heavy-Light Decay Constants
MILC Collaboration, C. Bernard, T. DeGrand +9
We report on the MILC collaboration's calculation of , , , , and their ratios. Our central values come from the quenched approximation, but the quenchin…
hep-ph1998★ 7 cited
Nonperturbative QCD contribution to gluon-gluon-eta' vertex
Mohammad R. Ahmady, Victor Elias, Emi Kou
We investigate the momentum dependence of the g*-g-eta' vertex form factor in the presence of the nonperturbative QCD vacuum condensate. The behaviour of this form factor is crucia…