Study of B-0 -> J/psi K-(*)0 pi(+)pi(-) decays with the Collider detector at Fermilab
2002
We report a study of the decays B-0 --> J/psiK((*)0)
pi(+)
pi(-), which involve the creation of a u(u)
overbar or d(d)
overbar quark pair in addition to a (b)
overbar --> (c)
overbar(c(s)
overbar) decay. The data sample consists of 110 pb(-1) of p(p)
overbar collisions at roots = 1.8 TeV collected by the CDF detector at the
Fermilab
Tevatroncollider during 1992-1995. We measure the
branching fractionsto be B(B-0 --> J/psiK(*0)
pi(+)
pi(-)) = (6.6 +/- 1.9 +/- 1.1) X 10(-4) and B(B-0 --> J/psiK(0)
pi(+)
pi(-)) = (10.3 +/- 3.3 +/- 1.5) X 10(-4). Evidence is seen for contributions from psi(2S)K-(*)0, J/psiK(0) rho(0), J/psiK(*+)
pi(-), and J/psiK(1)(1270).
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