Study of B Decays to Charmonium States: B-->eta(c)K and B --> chi(c0)K.
Phys Rev Lett 86:1 (2001) 30-34
Abstract:
In a sample of 9.66x10(6)B&Bmacr; pairs collected with the CLEO detector we make the first observation of B decays to an eta(c) and a kaon. We measure branching fractions B(B+-->eta(c)K+) = (0.69(+0.26)(-0.21)+/-0.08+/-0.20)x10(-3) and B(B degrees -->eta(c)K degrees ) = (1.09(+0.55)(-0.42)+/-0.12+/-0.31)x10(-3), where the first error is statistical, the second is systematic, and the third is from the eta(c) branching fraction uncertainty. From these we extract the eta(c) decay constant in the factorization approximation, f(eta(c)) = 335+/-75 MeV. We also search for B decays to a chi(c0) and a kaon. No evidence for a signal is found and we set 90% C.L. upper limits: B(B+-->chi(c0)K+)<4.8x10(-4) and B(B degrees -->chi(c0)K degrees )<5.0x10(-4).Correlated Λc+(λ)over-barc- production in e+e- annihilations at √s∼10.5 GeV -: art. no. 112003
PHYSICAL REVIEW D 63:11 (2001) ARTN 112003
Dalitz analysis of the decay D0→K- π+ π0 -: art. no. 092001
PHYSICAL REVIEW D 63:9 (2001) ARTN 092001
Evidence for the decay D0→K+π-π+π- -: art. no. 111101
PHYSICAL REVIEW D 64:11 (2001) ARTN 111101
First observation of the decays B0→D*- p(p)over-tildeπ+ and B0→D*- p(n)over-bar
PHYSICAL REVIEW LETTERS 86:13 (2001) 2732-2736