Observation of the Rare Decay B+ \to K+pi0pi0 and Measurement of the Quasi-two Body Contributions B+ \to K*(892)+pi0, B+ \to F0(980)K+ and B+ \to Chic0K+.
| Author | : |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 2011 |
| ISBN-10 | : OCLC:1065632643 |
| ISBN-13 | : |
| Rating | : 4/5 ( Downloads) |
Download or read book Observation of the Rare Decay B+ \to K+pi0pi0 and Measurement of the Quasi-two Body Contributions B+ \to K*(892)+pi0, B+ \to F0(980)K+ and B+ \to Chic0K+. written by and published by . This book was released on 2011 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report an analysis of charmless hadronic decays of charged B mesons to the final state K+?°?°, using a data sample of (470.9 ± 2.8) x 106 B{bar B} events collected with the BABAR detector at the ?(4S) resonance. We observe an excess of signal events, with a significance above 10 standard deviations including systematic uncertainties, and measure the branching fraction and CP asymmetry to be ?(B+ → K+?°?°) = (16.2 ± 1.2 ± 1.5) x 10−6 and A{sub CP}(B+ → K+?°?°) = -0.06 ± 0.06 ± 0.04, where the uncertainties are statistical and systematic, respectively. Additionally, we study the contributions of the B+ → K+(892)+?°, B+ → f0(980)K+, and B+ → ?{sub c0}K+ quasi-two-body decays. We report the world's best measurements of the branching fraction and CP asymmetry of the B+ → K+?°?° and B+ → K+(892)+?° channels.
