Study of semi-inclusive production of eta' mesons in B decays

2001/09/21 by the BABAR Collaboration, The BABAR Collaboration, B. Aubert +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/0109034

16 pages, 5 figures (10 postscript files) Corrected typo error for the lower value of the error bar

arxiv created 2003/01/10 · arxiv updated 2009/11/30

Abstract

We report a measurement of the rate for B → η' X_s transitions where the η' meson has center-of-mass momentum in the range 2.0 to 2.7\gevc and X_s represents a system comprising a kaon and up to four pions. Our study is based on 22.2 million BB pairs collected at the Υ(4S) with the BABAR detector at the Stanford Linear Accelerator Center. We find B(B → η' X_s)=(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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