Dr. C. V. Drysdale, C.B., O.B.E.

Experimental Results on | V cb | and b → c ν Transitions

A review of recent analyses on semileptonic decays of B mesons into charmed final states is given. |Vcb| is extracted both by the BABAR and the Belle collaboration from their datasets using inclusively and exclusively reconstructed final states. In addition there are recent results on the determination of exclusive branching fractions to the ground states D and D∗, as well as to excited D∗∗ sta...

Some Theoretical Results on V Ub and V Cb

It was proposed [1] recently to use the decay distribution in terms of the observable ξu = (q 0 + |q|)/MB in the B rest frame to measure Vub, where q is the momentum transfer to the lepton pair. This decay spectrum is unique in that the tree-level and virtual gluon processes b → ulν at the parton level generate a trivial ξu spectrum — a discrete line at ξu = mb/MB, solely on kinematic grounds. ...

Dr. C. J. C. Earl

Doubly Excited States of Cb, C;, and C;+

The stability of strongly bound excited states of Cat Cz and Cz’ resulting from double excitations of the type aE+MO’ relative to the ground-state configuration (with MO2 standing for 317:, 3a&r” or lx: ) was investigated using a multi-reference MRD-CI method. For Cz, the doubly excited configuration 30~1~: corresponds to the experimentally observed E’C: (3’Z: ) state, which exhibits a heavy mi...

OBE: Outlier by Example

Outlier detection in large datasets is an important problem. There are several recent approaches that employ very reasonable definitions of an outlier. However, a fundamental issue is that the notion of which objects are outliers typically varies between users or, even, datasets. In this paper, we present a novel solution to this problem, by bringing users into the loop. Our OBE (Outlier By Exa...