A study of B-meson decays to etac K* and etac gamma K(*)
Abstract
We present preliminary results of a study of the two-body B-meson decays to a charmonium state (ccbar) and a K+ or K*0(892) meson using a sample of about 349 fb-1 of data collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. Here ccbar indicates either the etac state, reconstructed in the KS K+- pi-+ and K+K-pi0 decay channels, or the hc state, reconstructed in its decay to etac gamma. We measure BR(B0 -> etac K*0)=(6.1+-0.8stat +- 1.1syst) * 10-4, BR(B+ -> hc K+) * BR(hc -> etac gamma)<5.2 * 10-5 and BR(B0 -> hc K*0) * BR(hc -> etac gamma)<2.41 * 10-4, at the 90% C.L.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.