Moments of theBmeson inclusive semileptonic decay rate using neutrino reconstruction

Moments of the B meson inclusive semileptonic decay rate using neutrino reconstruction

S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, A. J. Weinstein, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. Cassel, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. ...

m b from the Hadronic Invariant Mass Moments of Semileptonic Inclusive B decay

We calculate the hadronic tensor for inclusive semileptonic B → Xc l ν̄ decay to O(αs). This allows O(αs ΛQCD/mb) corrections to hadronic invariant mass observables to be directly evaluated with experimentally required cuts on phase space. Several moments of phenomenological interest are presented to order O(αs ΛQCD/mb) and O (

Measurement and Interpretation of Moments in Inclusive Semileptonic Decays

Hadronic mass moments in inclusive semileptonic B meson decays.

We have measured the first and second moments of the hadronic mass-squared distribution in B-->X(c)l nu, for P(lepton)>1.5 GeV/c. We find = 0.251+/-0.066 GeV(2), <(M(2)(X)-)(2)> = 0.576+/-0.170 GeV(4), where M macro(D) is the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b-->s gamma, we find the heavy qu...

Mixing Using Inclusive Semileptonic Decays

The time dependence of B d B d mixing has been observed in events containing high-P t leptons using a highly inclusive v ertexing method to determine the B decay position. The initial state B hadron avor was determined using the large forward-backward asymmetry provided by the highly polarized electron beam of SLC in combination with a jet charge technique. From a sample of 150,000 hadronic Z d...