Study of semi-inclusive production of eta' mesons in B decays
Abstract
We report a measurement of the rate for B η' Xs transitions where the η' meson has center-of-mass momentum in the range 2.0 to 2.7 and Xs represents a system comprising a kaon and up to four pions. Our study is based on 22.2 million BB pairs collected at the (4S) with the BABAR detector at the Stanford Linear Accelerator Center. We find B(B η' Xs)=(6.8+0.7-1.7(stat)1.0(syst)+0.0-0.5(bkg))×10-4 assuming that the signal is due to b sg* transitions.
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