Measurement Of The Branching Fraction And Lambda Bar Polarization In B0 Lambda Par P Pi
Download Measurement Of The Branching Fraction And Lambda Bar Polarization In B0 Lambda Par P Pi PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of The Branching Fraction And Lambda Bar Polarization In B0 Lambda Par P Pi book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Measurement of the Branching Fraction and Lambda-bar Polarization in B0 -> Lambda-par P Pi-.
We present a measurement of the B° → {bar ?}p?− branching fraction performed using the BABAR detector at the PEP-II asymmetric e+e− collider. Based on a sample of 467 x 106 B{bar B} pairs we measure ?(B° → {bar ?}p?−) [3.07 ± 0.31(stat.) ± 0.23(syst.)] x 10−6. The measured differential spectrum as a function of the dibaryon invariant mass m({bar ?}p) shows a near-threshold enhancement similar to that observed in other baryonic B decays. We study the {bar ?} polarization as a function of {bar ?} energy in the B° rest frame (E*{sub {bar ?}}) and compare it with theoretical expectations of fully longitudinally right-polarized {bar ?} at large E*{sub {bar ?}}.