22176544
Measurement of the direct photon spectrum from the Upsilon (1S).
122354898
The discovery of the B mesons
In 1983 the CLEO collaboration first, fully reconstructed B meson decays. I describe here what was done and how these procedures have evolved.
125049924
A1 PRODUCTION IN CHARGE EXCHANGE REACTIONS
6960296
Future of Heavy Flavour Physics: Experimental Perspective
I discuss what measurements need to be done to search for physics beyond the Standard CKM model, rather than just what studies can be done in the near future. It is also important to accurately measure the CKM matrix elements. Current best estimates for two important elements are: jVcbj=0 :03810:0021 andjVub=Vcbj=0 :0850:019. Finally, future experiments are discussed.
118259341
Leptonic and Semileptonic Decays from CLEO‐c
The CLEO‐c measurement of the purely leptonic decay rate D+ → μ+v determines the value of the pseudoscalar decay constant fD+ = (222.6 ± 16.7−3.4+2.8) MeV, allowing for a precision test of strong interaction theories. Semileptonic decay branching ratios are also summarized.
122170479
Particle identification by ionization measurements: Description of the CLEO dEdx system
Abstract We describe the design, construction and performance of a pressurized proportional chamber system intended to identify particles by means of their energy loss in thin gas samples. The system is part of the CLEO detector at the Cornell Electron-Positron Storage Ring (CESR).
43801105
Possible resolution of the angular momentum paradox: Fractional charge, twist, and topology in 3He-A.
We attempt to resolve the angular momentum paradox in THe-A by connecting it to the phenomenon of charge fractionalization and by writing the current as a weighted Fermi-surface sum of fractional charges. We also give a novel interpretation of the twist term in terms of topology on the Fermi surface.
44832895
Charge, mass, and energy changes during fragmentation of relativistic nuclei.
We have examined the fragmentation of relativistic lanthanum and gold nuclei incident on targets of polyethylene, carbon, aluminum, and copper. Attention has been concentrated on those fragments whose atomic numbers were only changed by +1 to -3 from those of the incident nuclei. The cross section for the production of fragments with increased charge is about 10% that for fragments that have lost one charge, or about 1% of the total interaction cross section. We find that the velocity distributions of these fragments can be explained by assuming that they also lose significant numbers of neutrons when they pick up or lose charge, without a need to invoke any energy or momentum loss in the interaction, although we cannot exclude small losses. In particular, we cannot confirm the recent report of large energy losses during the charge pickup process. The relative numbers of neutrons lost can be represented by a simple Gaussian model, and, for those fragments with decreased charge, are much larger than the proton losses. These fragments consequently have large proton excesses and will be highly unstable.
29081438
Systematics of the release of residual nuclei from relativistic nucleus-nucleus interactions.
We have examined relativistic nuclei of krypton, xenon, holmium, and gold, accelerated in a partially stripped state to a maximum rigidity of about 5.6 GeV, interacting with targets of aluminum, carbon, and polyethylene. For each projectile and target combination we determined the total and partial charge changing cross sections for the production of lighter fragments. From these measurements we have developed a new representation of the dependence of the total charge changing cross sections on beam and target charge. We have also identified simple representations of the variation of the partial cross sections with the charge of the produced fragments and shown that they are dependent on the charge and energy of the beam. The fission of gold nuclei at high energies in these various targets has also been studied.
8419154
Elementary derivation of one-dimensional fermion-number fractionalization.
1139726
Acoustic energy and momentum in a moving medium
By exploiting the mathematical analogy between the propagation of sound in a nonhomogeneous potential flow and the propagation of a scalar field in curved space-time, various wave "energy" and wave "momentum" conservation laws are established in a systematic manner. In particular, the acoustic energy conservation law due to Blokhintsev appears as the result of the conservation of a mixed covariant and contravariant energy-momentum tensor, while the exchange of relative energy between the wave and mean flow, first noted by Longuet-Higgins and Stewart in the context of ocean waves, appears as the covariant conservation of the doubly contravariant form of the same energy-momentum tensor.