Comparison of transcriptomic and proteomic data from pathologically similar multiple sclerosis (MS) lesions reveals down-regulation of CD47 at the messenger RNA level and low abundance at the protein level. Immunohistochemical studies demonstrate that CD47

We present a Dalitz-plot analysis of charmless B± decays to the final state π±π±π using 210fb-1 of data recorded by the BABAR experiment at s=10.58GeV. We measure the branching fractions B(B±→π±π±π)=(16.2±1.2±0.9) ×10-6 and B(B±→ρ0(770)π±)=(8.8±1. 0±0.6-0.7+0.1)×10-6. Measurements of branching fractions for the quasi-two-body decays B±→ρ0(1450)π±, B±→f0(980)π± and B±→f2(1270)π± are also presented. We observe no charge asymmetries for the above modes, and there is no evidence for the decays B±→χc0π±, B±→f0(1370)π± and B±→σπ±. © 2005 The American Physical Society.

A measurement of the direct CP violating asymmetry in the decay B 0→K+π- is discussed using a data sample of 227×106 υ(4S)→BB̄ decays. It is found that direct CP violation does not involve particle-antiparticle oscillations. The data sample is collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. The probability of observing an asymmetry is 1.3×10-5, in the absence of direct CP violation, corresponding to 4.2 standard deviations.

New measurements of Ds+and Ds*+meson production rates from B decays and from qq̄ continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1of data on the Y(4S) resonance and 2.6 fb-1off-resonance, we find the inclusive branching fractions B(B→Ds+X)=(10.93±0.19±0.58±2.73)% and B(B→Ds*+X)=(7.9±0.8±0.7 ±2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+→φπ+branching fraction uncertainty. The production cross sections σ(e+e-→Ds+X) × B(Ds+→φπ+)=7.55±0.20 ±0.34 pb and σ(e+e-→Ds*±X) × B(Ds+→φπ+) = 5.8±0.7±0.5 pb are measured at center-of-mass energies about 40 MeV below the Y(4S) mass. The branching fractions ΣB(B→Ds(*)+D̄(*))=(5.07±0.14±0.30±1.27)% and ∑B(B→Ds*+D̄(*)) =(4.1±0.2±0.4±1.0)% are determined from the Ds(*)+momentum spectra. The mass difference m(Ds+)-m(D+)=98.4±0.1 ±0.3 MeV/c2is also measured.

We present measurements of the B→ηKγ branching fractions and upper limits for the B→η′Kγ branching fractions. For B+→ηK+γ we also measure the time-integrated charge asymmetry. The data sample, collected with the BABAR detector at the Stanford Linear Accelerator Center, represents 232×106 produced BB̄ pairs. The results for branching fractions and upper limits at 90% confidence level in units of 10-6 are: B(B0→ηK0γ)=11.3-2.6+2.8±0.6, B(B+→ηK+γ)=10.0±1.3±0.5, B(B0→η′ K0γ)<6.6, B(B+→η′K+γ)<4.2. The charge asymmetry in the decay B+→ηK+γ is Ach=-0.09±0.12±0.01. The first errors are statistical and the second systematic. © 2006 The American Physical Society.

We report a study of the [Formula presented] meson decays, [Formula presented] , [Formula presented], [Formula presented] , [Formula presented], and [Formula presented] using [Formula presented] [Formula presented] events collected at the [Formula presented] resonance with the BABAR detector at the PEP-II [Formula presented] asymmetric-energy storage ring. We measure the branching fractions [Formula presented] and [Formula presented] , and set upper limits at [Formula presented] confidence level for the branching fractions [Formula presented] , [Formula presented], and [Formula presented] . © 2003 The American Physical Society.

We study the decays B-→ D*0π-and B-→ D*0K-, where the D*0decays into D0π0, with the D0reconstructed in the CP-even (CP+) eigenstates K-K+and π-π+and in the (non-CP) channels K-π+, K-π+π+π-, and K-π+π0. Using a sample of about 123 × 106BB̄ pairs, we measure the ratios of decay rates R*non-CP≡ B(B-→ D*non-CP0K-)/B(B-→ D*non-CP0π-) = 0.086 ± 0.0040(stat)-0.0031+0.0042(syst), and provide the first measurements of R*CP+≡ B(B-→ D*CP+0K-)/B(B-→ D*CP+0π-) = 0.0086 ± 0.021(stat) ± 0.007(syst), and of the CP asymmetry A*CP+≡ B(B-→ D*CP+0K-)-B(B+→ D*CP+0K+)/B(B-→ D*CP+0K-)+B(B+→ D*CP+0K+) = 0.10 ± 0.23(stat)-0.04+0.03(syst). © 2005 The American Physical Society.

A search for the decay of the τ lepton to five charged and two neutral pions is performed using data collected by the BABAR detector at the PEP-II asymmetric-energy e+e- collider. The analysis uses 232fb-1 of data at center-of-mass energies on or near the Υ(4S) resonance. We observe 10 events with an expected background of 6.5-1.4+2.0 events. In the absence of a signal, we set the limit on the branching ratio B(τ-→3π- 2π+2π0ντ)<3.4×10-6 at the 90% confidence level. This is a significant improvement over the previously established limit. In addition, we search for the decay mode τ-→2ωπ-ντ. We observe 1 event with an expected background of 0.4+1.0-0.4 events and calculate the upper limit B(τ-→2ωπ-ντ)<5.4×10-7 at the 90% confidence level. This is the first upper limit for this mode. © 2006 The American Physical Society.

Using a data sample corresponding to an integrated luminosity of 342fb-1 collected with the BABAR detector at the SLAC PEP-II electron-positron storage ring operating at a center-of-mass energy near 10.58 GeV, we measure B(τ-→π-π-π+ντ(ex.KS0))=(8.83±0.01±0.13)%, B(τ-→K-π-π+ντ(ex.KS0))=(0.273±0.002±0.009) %, B(τ-→K-π-K+ντ)=(0.1346±0.0010±0.0036)%, and B(τ-→K-K-K+ντ)=(1.58±0.13±0.12)×10-5, where the uncertainties are statistical and systematic, respectively. These include significant improvements over previous measurements and a first measurement of B(τ-→K-K-K+ντ) in which no resonance structure is assumed. We also report a first measurement of B(τ-→ π-ντ)=(3. 42±0.55±0.25)×10-5, a new measurement of B(τ-→ K-ντ)=(3.39±0.20±0.28)×10-5 and a first upper limit on B(τ-→K-K-K+ντ(ex.)). © 2008 The American Physical Society.

We report a measurement of the CP-violation parameter sin 2β with B0J/ψKS0decays in which the J/ψ decays to hadrons or to muons that do not satisfy our standard identification criteria. With a sample of 88 million BB̄ events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we reconstruct 100±17 such events, with J/ψ→π-π-π0being the most prevalent, and measure sin2β=1.56± 0.42(stat)±0.21(syst). © 2004 The American Physical Society.