Measurement of the B+/B0 Production Ratio from the Upsilon(4S) Meson using B+ -> J/psi K+ and B0 -> J/psi K0S Decays
Abstract
We report a measurement of the production ratio of charged and neutral B mesons from Upsilon(4S) decays based on the ratio of efficiency-corrected yields for the charmonium modes J/psi K+ and J/psi K0S with 81.9 fb-1 of data collected with the BABAR detector on the Upsilon(4S) resonance at 10.580 GeV. We find a value of 1.006 +/- 0.036 (stat) +/- 0.031 (sys) for the ratio R+/0=Gamma(Upsilon(4S) -> B+ B-)/Gamma(Upsilon(4S)->B0 B0bar).
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.