Measurement of Branching Fractions of B0 Decays to K1(1270)+ Pi- and K1(1400)+ Pi-
Author | : |
Publisher | : |
Total Pages | : 16 |
Release | : 2008 |
ISBN-10 | : OCLC:1061409469 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Measurement of Branching Fractions of B0 Decays to K1(1270)+ Pi- and K1(1400)+ Pi- written by and published by . This book was released on 2008 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the branching fraction of neutral B meson decaying to final states containing a K1 meson, i.e. K1(1270) and K1(1400), and a charged pion. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 454 million B{bar B} pairs produced in ee− annihilation. We measure the branching fraction?(B° → K1+?−) = (31.0 ± 2.7 ± 6.9) x 10−6, where the first error quoted is statistical and the second is systematic. In the framework of the K-matrix formalism used to describe these decays, we also set limits on the ratio of the production constants for the K1(1270)+ and K1(1400)+ mesons in B° decays.