Abstract BAB AR, the detector for the SLAC PEP-II asymmetric e+ e− B Factory operating at
the ϒ (4S) resonance, was designed to allow comprehensive studies of CP-violation in B-
meson decays. Charged particle tracks are measured in a multi-layer silicon vertex tracker …

Background Several diagnostic strategies using ultrasound imaging, measurement of D-
dimer, and assessment of clinical probability of disease have proved safe in patients with
suspected deep-vein thrombosis, but they have not been compared in randomized trials …

We present an updated measurement of time-dependent CP-violating asymmetries in
neutral B decays with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. This
result uses an additional sample of ϒ (4 S) decays collected in 2001, bringing the data …

Background When ultrasonography is used to investigate deep-vein thrombosis, serial
testing is recommended for those who test negative initially. Serial testing is inconvenient for
patients and costly. We aimed to assess whether the calculation of pretest probability of …

We have observed a narrow state near 2.32 G e V/c 2 in the inclusive D s+ π 0 invariant
mass distribution from e+ e− annihilation data at energies near 10.6 GeV. The observed
width is consistent with the experimental resolution. The small intrinsic width and the …

We study initial-state radiation events, e+ e−→ γ ISR π+ π− J/ψ, with data collected with the
BABAR detector. We observe an accumulation of events near 4.26 GeV/c 2 in the invariant-
mass spectrum of π+ π− J/ψ. Fits to the mass spectrum indicate that a broad resonance with …

We study the decay B−→ J/ψ K− π+ π− using 117× 10 6 BB events collected at the Y (4 S)
resonance with the BABAR detector at the PEP-II e+ e− asymmetric-energy storage ring. We
measure the branching fractions B (B−→ J/ψ K− π+ π−)=(116±7 (stat.)±9 (syst.))× 10− 5 and …

We present results on time-dependent CP asymmetries in neutral B decays to several CP
eigenstates. The measurements use a data sample of about 88× 10 6 Υ (4 S)→ BB decays
collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy …

We present evidence for D 0− D 0 mixing in D 0→ K+ π− decays from 384 fb− 1 of e+ e−
colliding-beam data recorded near s= 10.6 GeV with the BABAR detector at the PEP-II
storage rings at the Stanford Linear Accelerator Center. We find the mixing parameters x …

We present a measurement of the direct CP violating asymmetry in the decay B 0→ K+ π−
using a data sample of 227× 10 6 Υ (4 S)→ BB decays collected with the BABAR detector at
the PEP-II asymmetric-energy e+ e− collider at SLAC. We observe a total signal yield of n K …