Properties of light mesons in a generalized Nambu -- Jona-Lasinio model.
Item
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Title
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Properties of light mesons in a generalized Nambu -- Jona-Lasinio model.
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Identifier
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AAI9959188
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identifier
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9959188
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Creator
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Huang, Bo.
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Contributor
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Adviser: Carl M. Shakin
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Date
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2000
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Nuclear
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Abstract
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We present results for the spectra and other properties of a full range of light mesons making use of a generalized Nambu -- Jona-Lasinio (NJL) model that includes a covariant model of confinement. Since the model also exhibits chiral symmetry, there is no difficulty in treating the pseudoscalar octet of mesons. Like other effective theories, the NJL model is not renormalizable. Therefore, we also describe the regularization schemes used in our work. We discuss the calculation of the leading vacuum polarization functions of order nc, as well as functions of order 1 that describe decay to various two meson continuum channels. The calculation of the latter set of functions requires methods for the calculation of quark loops with three vertices. We describe how such calculations may be made in a fully covariant manner.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
