Abstract |
content_type = "text/plain"
user_agent = "claudebot"
moz = "claudebot"
moz_version = ""
We search for a charged partner of the X(3872) in the decay
B -> X- K, X- -> J/psi pi- pi0, using 234 million BBbar events
collected at the Y(4S) resonance with the BaBar
detector at the PEP-II e+e- asymmetric-energy storage ring.
The resulting product branching fraction upper limits are
BR(B0 -> X- K+, X- -> J/psi pi- pi0) < 5.4 x 10^(-6) and
BR(B- -> X- K0bar,X- -> J/psi pi- pi0) < 22 x 10^(-6) at the
90% confidence level.
|