48,437 research outputs found
Multi-GeV Gluonic Mesons
Lattice QCD gives reliable predictions for hybrid charmonium and multi-GeV
glueball masses. Proton-antiproton annihilation may offer an excellent
opportunity for the first observation of these states. There are two distinct
possible programs: The search for J^PC-exotic and non-J^PC-exotic states. The
latter program represents substantially higher cross sections and does not
absolutely require partial wave analysis, two very attractive features. The
program can be performed with a varying pbar energy <10 GeV and a fixed target.Comment: Invited talk given at The pbar2000 Workshop, Chicago, IL, August 3-5,
2000. 10 pages, LaTe
Hadron Structure and Modern Spectroscopy
The colour, flavour, spin and J^PC of glueballs and hybrid mesons and baryons
are constructed in an intuitive manner in both the gluon counting and adiabatic
definitions. Glueball decay, production and mixing and hybrid meson decay
selection rules and production are clarified.Comment: Invited Lectures at the Advanced School on Quantum Chromodynamics
2000 (QCD2000), Benasque, Huesca, Spain, 3 - 6 July 2000. 26 pages, LaTeX, 4
(encapsulated) postscript figure
Hybrid Baryon Signatures
We discuss whether a low-lying hybrid baryon should be defined as a three
quark - gluon bound state or as three quarks moving on an excited adiabatic
potential. We show that the latter definition becomes exact, not only for very
heavy quarks, but also for specific dynamics. We review the literature on the
signatures of hybrid baryons, with specific reference to strong hadronic
decays, electromagnetic couplings, diffractive production and production in psi
decay.Comment: Talk at ``The Physics of Excited Nucleons'' (NSTAR2000), Newport
News, VA, 16-19 Feb. 2000. 8 pages, LaTe
The Greek Word Porneia in the Matthean Exception Clauses
Matthew 5:32 and 19:9 present an interesting exegetical discussion concerning the acceptability and permissibility of divorce. These verses provoke interest because of their inclusion of an exception clause seemingly allowing for a permissible divorce. The verses state the unlawfulness of divorce “except in the case of porneia.” Porneia is the word around which this discussion revolves and its meaning differs vastly depending upon the interpreter. The word is interpreted specifically as adultery during the betrothal period and also as sexual promiscuity and immorality on the other. This thesis explains both views and then seeks to offer all relevant evidence by exploring context, background, lexical meaning, tradition, and the various uses of the word in the New Testament and Septuagint
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