dorsal/arxiv
View SchemaConsistent effective description of nucleonic resonances in an unitary relativistic field-theoretic way
| Authors | F. Kleefeld |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9811032 |
| URL | https://arxiv.org/abs/nucl-th/9811032 |
| Journal | Vol. I of Proc. XIV Int. Seminar on High Energy Physics Problems, "Relativistic Nuclear Physics and Quantum Chromodynamics" (ISHEPP 98), 17-22.8.1998, Dubna, Russia, p. 69-77 (Eds. A.M. Baldin, V.V. Burov, ISBN 5-85165-570-4, (c) JINR, Dubna, 2000) |
Abstract
High energy strong interaction physics is successfully described by the local renormalizable gauge theory called Quantum-Chromo-Dynamics (QCD) with quarks and gluons as ``elementary'' degrees of freedom, while intermediate energy strong interaction physics shows up to be determined by a non-local, non--renormalizable effective field theory (EFT) of ``effective'' degrees of freedom like mesons, ground state baryons and resonances. Within the picture of an effective field theory of strong interaction at intermediate energies I present a ``toy-model'' in which fermionic and bosonic resonances are considered to be ``particles'', i.e. they consistently are described by (anti-)commuting effective field-operators (containing dynamics of infinitely many quark-gluon or meson-nucleon diagrams) which are comfortably treated by Wick's Theorem in a covariant framework and obey unitarity. Non-trivial implications to couplings of non-local interactions are shown.
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"abstract": "High energy strong interaction physics is successfully described by the local\nrenormalizable gauge theory called Quantum-Chromo-Dynamics (QCD) with quarks\nand gluons as ``elementary\u0027\u0027 degrees of freedom, while intermediate energy\nstrong interaction physics shows up to be determined by a non-local,\nnon--renormalizable effective field theory (EFT) of ``effective\u0027\u0027 degrees of\nfreedom like mesons, ground state baryons and resonances. Within the picture of\nan effective field theory of strong interaction at intermediate energies I\npresent a ``toy-model\u0027\u0027 in which fermionic and bosonic resonances are\nconsidered to be ``particles\u0027\u0027, i.e. they consistently are described by\n(anti-)commuting effective field-operators (containing dynamics of infinitely\nmany quark-gluon or meson-nucleon diagrams) which are comfortably treated by\nWick\u0027s Theorem in a covariant framework and obey unitarity. Non-trivial\nimplications to couplings of non-local interactions are shown.",
"arxiv_id": "nucl-th/9811032",
"authors": [
"F. Kleefeld"
],
"categories": [
"nucl-th"
],
"journal_ref": "Vol. I of Proc. XIV Int. Seminar on High Energy Physics Problems,\n \"Relativistic Nuclear Physics and Quantum Chromodynamics\" (ISHEPP 98),\n 17-22.8.1998, Dubna, Russia, p. 69-77 (Eds. A.M. Baldin, V.V. Burov, ISBN\n 5-85165-570-4, (c) JINR, Dubna, 2000)",
"title": "Consistent effective description of nucleonic resonances in an unitary relativistic field-theoretic way",
"url": "https://arxiv.org/abs/nucl-th/9811032"
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