Measurement of the decays B → φK and B → φK*

B Aubert, Paul Bright-Thomas, Theresa Harrison, Christopher Hawkes, Andrew Kirk, David Knowles, Stephen O'Neale, Richard Penny, Alan Watson, Nigel Watson

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Abstract

We have observed the decays B--> phiK and phiK(*) in a sample of over 45 million B mesons collected with the BABAR detector at the PEP-II collider. The measured branching fractions are B(B+--> phiK+) = (7.7(+1.6)(-1.4)+/-0.8)x10(-6), B(B0--> phiK0) = (8.1(+3.1)(-2.5)+/-0.8)x10(-6), B(B+--> phiK(*+)) = (9.7(+4.2)(-3.4)+/-1.7)x10(-6), and B(B0--> phiK(*0)) = (8.7(+2.5)(-2.1)+/-1.1)x10(-6). We also report the upper limit B(B+--> phipi(+))
Original languageEnglish
Pages (from-to)151801
Number of pages1
JournalPhysical Review Letters
Volume87
Issue number15
Early online date1 Sep 2001
DOIs
Publication statusPublished - 1 Oct 2001

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