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

Abstract

We report a measurement of the rate for $B\to {\eta }^{\prime }{X}_s$ transitions where the ${\eta }^{\prime }$ 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 $B\bar{B}$ pairs collected at the ${\rm Y}(4S)$ with the BABAR detector at the Stanford Linear Accelerator Center. We find $\mathcal{B}(B\to {\eta }^{\prime }{X}_s)=(6.8_{-1.7}^{+0.7}(stat)\pm 1.0(syst{)}_{-0.5}^{+0.0}(bkg))\times 10^{-4}$ assuming that the signal is due to $b\to s{g}^{\ast }$ transitions.

arXiv comment16 pages, 5 figures (10 postscript files) Corrected typo error for the lower value of the error bar

Cited by in corpus (1)

• Etaprime and Eta Mesons with Connection to Anomalous Glue