Hadronic Mass Moments in B -> Xc l nu Decays
Abstract
We report measurements of the first and second moments of the hadronic invariant mass squared distribution, <M2X> and <(M2X-<M2X>)2>, in B -> Xc l nu decays for minimum lepton momenta ranging from 0.7 to 1.5 GeV/c in the B meson rest frame. The measurement uses BBbar events in which the hadronic decay of one B meson is fully reconstructed and the semileptonic decay of the other B is inferred from the presence of an identified lepton. These results are obtained from a 140 fb-1 data sample collected near the Y(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider.
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.