dorsal/arxiv
View SchemaPhenomenology of Large N_c QCD
| Authors | Richard F. Lebed |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9810080 |
| URL | https://arxiv.org/abs/nucl-th/9810080 |
| DOI | 10.1023/A:1022820227262 |
| Journal | Czech.J.Phys.49:1273-1306,1999 |
Abstract
These lectures are designed to introduce the methods and results of large N_c QCD in a presentation intended for nuclear and particle physicists alike. Beginning with definitions and motivations of the approach, we demonstrate that all quark and gluon Feynman diagrams are organized into classes based on powers of 1/N_c. We then show that this result can be translated into definite statements about mesons and baryons containing arbitrary numbers of constituents. In the mesons, numerous well-known phenomenological properties follow as immediate consequences of simply counting powers of N_c, while for the baryons, quantitative large N_c analyses of masses and other properties are seen to agree with experiment, even when ``large'' N_c is set equal to its observed value of 3. Large N_c reasoning is also used to explain some simple features of nuclear interactions.
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"abstract": "These lectures are designed to introduce the methods and results of large N_c\nQCD in a presentation intended for nuclear and particle physicists alike.\nBeginning with definitions and motivations of the approach, we demonstrate that\nall quark and gluon Feynman diagrams are organized into classes based on powers\nof 1/N_c. We then show that this result can be translated into definite\nstatements about mesons and baryons containing arbitrary numbers of\nconstituents. In the mesons, numerous well-known phenomenological properties\nfollow as immediate consequences of simply counting powers of N_c, while for\nthe baryons, quantitative large N_c analyses of masses and other properties are\nseen to agree with experiment, even when ``large\u0027\u0027 N_c is set equal to its\nobserved value of 3. Large N_c reasoning is also used to explain some simple\nfeatures of nuclear interactions.",
"arxiv_id": "nucl-th/9810080",
"authors": [
"Richard F. Lebed"
],
"categories": [
"nucl-th",
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],
"doi": "10.1023/A:1022820227262",
"journal_ref": "Czech.J.Phys.49:1273-1306,1999",
"title": "Phenomenology of Large N_c QCD",
"url": "https://arxiv.org/abs/nucl-th/9810080"
},
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