Study of high momentum η′ production in B → η′ Xs

B Aubert, Kelly Ford, Theresa Harrison, Christopher Hawkes, Sian Morgan, Alan Watson, Nigel Watson

Research output: Contribution to journalArticle

6 Citations (Scopus)


We measure the branching fraction for the charmless semi-inclusive process B --> eta'Xs, where the eta' meson has a momentum in the range 2.0 to 2.7 GeV/c in the upsilon4S center-of-mass frame and Xs represents a system comprising a kaon and zero to four pions. We find B(B --> eta'Xs) = [3.9 +/- 0.8(stat) +/- 0.5(syst) +/- 0.8(model)] x 10(-4). We also obtain the Xs mass spectrum and find that it fits models predicting high masses.
Original languageEnglish
Pages (from-to)061801
Number of pages1
JournalPhysical Review Letters
Issue number6
Early online date1 Aug 2004
Publication statusPublished - 1 Aug 2004


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