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Numerical estiamtes for the spectrum of quantum chromodynamics

Herbert W. Hamber, Giorgio Parisi

Open publisher page 43 citations

Abstract

We present estimates for the hadron masses in lattice QCD obtained in the approximation of neglecting dynamic-fermion loops. Both light- and heavy-quark systems are considered and their dependence on the coupling constant and the quark mass is studied. Some results for the decay amplitudes are also given. We discuss how the ${\ensuremath{\eta}}^{\ensuremath{'}}$ mass can be computed to lowest order in ${n}_{f}$, the number of dynamic fermion flavors.

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What this paper is about

We present estimates for the hadron masses in lattice QCD obtained in the approximation of neglecting dynamic-fermion loops. Both light- and heavy-quark systems are considered and their dependence on the coupling constant and the quark mass is studied. Some results for the decay amplitudes are also given. We discuss how the ${\ensuremath{\eta}}^{\ensuremath{'}}$ mass can be computed to lowest order in ${n}_{f}$, the number of dynamic fermion flavors.

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Available abstract

We present estimates for the hadron masses in lattice QCD obtained in the approximation of neglecting dynamic-fermion loops. Both light- and heavy-quark systems are considered and their dependence on the coupling constant and the quark mass is studied. Some results for the decay amplitudes are also given. We discuss how the ${\ensuremath{\eta}}^{\ensuremath{'}}$ mass can be computed to lowest order in ${n}_{f}$, the number of dynamic fermion flavors.

Key concepts: Physics, Quantum chromodynamics, Fermion, Particle physics, Coupling constant, Hadron, Quark, Lattice QCD

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