Heavy mesons in two dimensions

The large-mass limit of QCD uncovers symmetries that are not present in the QCD Lagrangian. These symmetries have been applied to physical (finite mass) systems, such as {ital B} and {ital D} mesons. We explore the validity of this approximation in the 't Hooft model (two-dimensional QCD in the...

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Veröffentlicht in:	Physical review letters 1992-08, Vol.69 (7), p.1018-1021
Hauptverfasser:	GRINSTEIN, B, MENDE, P. F
Format:	Artikel
Sprache:	eng
Schlagworte:	662230 - Quantum Chromodynamics- (1992-) 662420 - Properties of Mesons & Meson Resonances- (1992-) BOSONS CALCULATION METHODS Classical and quantum physics: mechanics and fields ELEMENTARY PARTICLES Exact sciences and technology FIELD THEORIES FORM FACTORS HADRONS MASS MATRIX ELEMENTS MESONS PARTICLE PROPERTIES Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY Theory of quantized fields TWO-DIMENSIONAL CALCULATIONS
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container_end_page	1021
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container_title	Physical review letters
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creator	GRINSTEIN, B MENDE, P. F
description	The large-mass limit of QCD uncovers symmetries that are not present in the QCD Lagrangian. These symmetries have been applied to physical (finite mass) systems, such as {ital B} and {ital D} mesons. We explore the validity of this approximation in the 't Hooft model (two-dimensional QCD in the large-{ital N} approximation). We find that the large-mass approximation is good, even at the charm mass, for form factors, but it breaks down for the pseudoscalar decay constant.
doi_str_mv	10.1103/PhysRevLett.69.1018
format	Article
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subjects	662230 - Quantum Chromodynamics- (1992-) 662420 - Properties of Mesons & Meson Resonances- (1992-) BOSONS CALCULATION METHODS Classical and quantum physics: mechanics and fields ELEMENTARY PARTICLES Exact sciences and technology FIELD THEORIES FORM FACTORS HADRONS MASS MATRIX ELEMENTS MESONS PARTICLE PROPERTIES Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY Theory of quantized fields TWO-DIMENSIONAL CALCULATIONS
title	Heavy mesons in two dimensions
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