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Exotic mesons from qcd sum rules
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In this paper, a simple method was presented to compute the Wilson expansion coefficients for T-products in QCD with light quarks, using this method in the framework of QCD sum rules they predicted the masses of quark-antiquark-gluon states with JPC = 1−+, 0++, 1+− and 0−−.About:
This article is published in Physics Letters B.The article was published on 1983-08-25. It has received 52 citations till now. The article focuses on the topics: QCD sum rules & Quantum chromodynamics.read more
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Hybrid Mesons
C. A. Meyer,Eric S. Swanson +1 more
TL;DR: A review of the theoretical and experimental status of hybrid hadrons is presented in this article, along with experimental results from GAMS, VES, Obelix, COMPASS, KEK, CLEO, Crystal Barrel, CLAS, and BNL Theoretical lattice results on the gluelump spectrum, adiabatic potentials, heavy and light hybrids, and transition matrix elements are discussed
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Hybrid and Conventional Mesons in the Flux Tube Model: Numerical Studies and their Phenomenological Implications
TL;DR: The small oscillation approximation is inappropriate for typical hadrons and the hybrid mass in underestimated by the adiabatic approximation, and the implications of the results for spectroscopy are discussed.
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J/Ψ decays
TL;DR: In this paper, a total of nearly 20 million J/Ψ decays have been analysed by various experiments that have operated at the J/ε energy in e+e− storage rings.
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An updated review of the new hadron states
TL;DR: In this article , an updated review of the recent experimental and theoretical progresses in the active field of hadron physics has been provided, including the recently observed open heavy flavor tetraquark states X(2900) and Tcc+(3875) as well as the hidden heavy flavor multiquark states.
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{QCD} Sum Rules and Hybrid Mesons
TL;DR: In this paper, a general background field method is presented to compute operator product expansions in the framework of QCD sum rules for operators coupling to hybrid mesons, and the masses and couplings of quark-antiquark-gluon states with JPC = 1−+, 1+−, 0++, 0−− and I = 0, 1.
References
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QCD and resonance physics. theoretical foundations
TL;DR: In this paper, a systematic study is made of the non-perturbative effects in quantum chromodynamics, where the basic object is the two-point functions of various currents and the terms of this series are shown to be of two distinct types.
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QCD and Resonance Physics: Applications
TL;DR: In this article, the dispersion charmonium theory was extended to include power terms due to the nonperturbative effects of QCD, and an estimate for the gluonic vacuum expectation value was derived.
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Non-Lagrangian Models of Current Algebra
TL;DR: In this article, an alternative to specific Lagrangian models of current algebra is proposed, in which scale invariance is a broken symmetry of strong interactions, as proposed by Kastrup and Mack.
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Quantum Theory of Gravity. II. The Manifestly Covariant Theory
TL;DR: In this paper, it is shown that the invariance of non-radiatively-corrected amplitudes can be obtained by decomposing them into Feynman baskets, i.e., sums over tree amplitudes (bare scattering amplitudes) in which all external lines are on the mass shell.
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Quantum Theory of Gravity. III. Applications of the Covariant Theory
TL;DR: In this article, the basic momentum-space propagators and vertices for both the Yang-Mills and gravitational fields are given, and the structure of the radiatively corrected 1-graviton vertex for a scalar particle is displayed.