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Every adult acute nonlymphocytic leukemia patient in Rochester, New York seen from January 1975 to January 1982 was studied. Fifty percent of the patients did not receive combination chemotherapy. Among those who did, there was a significant selection bias toward placing patients with better prognostic features on protocol. Protocol patients were also… (More)
We search for the decay B ? ! ? in a sample of over 2 million charged B decays using the CLEO detector. We use the channel in which the tau decays leptonically, and combine this lepton with the missing energy and momentum in the event to form a B candidate. A t to the mass and energy distribution of these B candidates yields ?14 46 signal events. This value… (More)
Using data taken with the CLEO II detector, we have searched for evidence of CP violation in the charm system. We look for asymmetries in the number of decays of D 0 's and
Four data sets collected with the MARK II detector during its operation at the SPEAR and PEP e+e-storage rings are used to study the Bose-Einstein correlation between pairs and triplets of like sign charged pions. The data sets represent four different regions of energy available for hadron production: the .7/lc, at ,/Z = 3.095 GeV, typical hadronic energy… (More)
1 Rook and Hit numbers and File and Fit numbers 1.1 Preliminaries Throughout this book, we abbreviate left-hand-side and right-hand-side by LHS and RHS, respectively. the complex numbers, and R denote the real numbers. For any statement A, we let χ(A) = 1 is A is true and χ(A) = 0 if A is false.
We have used the CLEO-II detector at the Cornell Electron Storage Ring to study the inclusive production of charmonium mesons in a sample of 2.15 million BB events. We nd inclusive branching fractions of (1.130.040.06)% for B!J==X, (0.340.040.03)% for B! 0 X, and (0.400.060.04)% for B! c1 X. We also nd some evidence for the inclusive production of c2. An… (More)
We evaluate the infinite volume, continuum limits of eight hadron mass ratios predicted by lattice QCD with Wilson quarks in the valence (quenched) approximation. Each predicted ratio differs from the corresponding observed value by less than 6%.
We evaluate pseudoscalar, vector, spin 1/2 and spin 3/2 baryon masses predicted by lattice QCD with Wilson quarks in the valence (quenched) approximation for a range of different values of lattice spacing, lattice volume and quark mass. Extrapolating these results to physical quark mass, then to zero lattice spacing and infinite volume we obtain values for… (More)
A search for single electrons from the decay of singly produced selectrons has been made at the PEP storage ring at SLAC. No events of this type have been found in 123 pb-' of data, resulting in a cross section limit of less than 2.4 x 10v2 pb wit,hin the detector acceptance, and a 95% confidence level lower limit on the selectron mass of 22.2 Gev/c2.… (More)