Recent N∗ results from decays

Recent N Results From J/ψ Decays

Based on 7.8 million J/ψ events collected at BEPC, the events for J/ψ → pp̄π and pp̄η have been selected and reconstructed. Clear peaks are observed around 1480 MeV in pπ(p̄π) invariant mass spectrum and near the threshold for η production in pη(p̄η) invariant mass spectrum. A partial wave analysis of J/ψ → pp̄η data has been performed. Two J = 1 2 − resonances are observed with mass and width (M, Γ...

B Meson Decays: Recent Results from Cleo

The CLEO Collaboration has extracted improved values of |Vcb| and |Vub| from measurements of exclusive and inclusive decays of B mesons. The measurement of B → D l ν at zero recoil combined with the predicted form factor FD∗(wmin) yields |Vcb|. The photon energy spectrum in b → s γ and the hadronic recoil mass spectrum in B → Xc l ν determine non-perturbative HQET parameters used with inclusive...

Recent Results from CLEO on B Meson Decays

CLEO has made a number of important new B measurements over the past two years. I report here a new measurement of the inclusive branching fraction B(B ! X``) using lepton tags which has very small model uncertainties and provides the best upper limit yet for the fraction of non-BB decays of the (4S). New values for V cb and B(b ! c ! `) which result from this analysis are also reported. A numb...

Recent Results on B Meson Decays from Cleo

Recent CLEO Results on Tau Hadronic Decays

When the τ lepton decays to 3 charged hadrons and a neutrino, the predominant decay mode involves three charged pions. Occasionally this decay will include one, two or three kaons in the final state. Each of these modes is useful for understanding different physics topics. The decay τ → Kππν is important in extracting the strange spectral function as well the strange quark mass and the CKM matr...