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Aspects of the dynamics of heavy-quark systems [electronic resource].

Published
Menlo Park, Calif. : Stanford Linear Accelerator Center, 1983.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 40 : digital, PDF file
Additional Creators
Stanford Linear Accelerator Center and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The analysis of bound states composed of heavy quarks and antiquarks has provided a window into the structure of the strong interactions. These systems contain our best evidence that the quarks from which the hadrons are built are ordinary fermions which obey the Dirac equation and which couple to electromagnetism just as electrons do. However, the heavy-quark systems which have been studied to date, the systems of c- anti c and b- anti b bound states, seem to be bound by forces which bear no obvious relation to the gluons which we expect are the fundamental mediators of the strong interactions. The essential difficulty in understanding this connection arises from the fact that the c- anti c and b- anti b systems occupy an intermediate regime in the behavior of the gauge theory. At very small distances the q- anti q potential is expected to become a Coulomb potential, directly reflecting one-gluon exchange. At very large distances, the potential should be proportional to the q- anti q separation, reflecting the formation of confining strings of color flux. For a proper understanding, one would need to see precisely how the collective behavior of gluons modifies and alters single gluon effects. We seem very far from such a detailed understanding. It is possible, however, to gain some insight into the nature of this intermediate regime by considering the behavior of q- anti q systems from a broad perspective, assembling a variety of distinct aspects of these systems which are sensitive to the properties of gauge theories at intermediate distances. 46 references.
Report Numbers
E 1.99:slac-pub-3273
E 1.99: conf-8307109-6
conf-8307109-6
slac-pub-3273
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Note
Published through SciTech Connect.
12/01/1983.
"slac-pub-3273"
" conf-8307109-6"
"DE84007088"
11. SLAC summer institute conference on particle physics - dynamics and spectroscopy at high energy, Stanford, CA, USA, 18 Jul 1983.
Peskin, M.E.
Funding Information
AC03-76SF00515
View MARC record | catkey: 14716082