Low-energy QCD
نویسندگان
چکیده
منابع مشابه
Low-energy QCD and hadronic structure
Recent developments and selected topics in low-energy QCD are summarized, from chiral effective field theory to systems with strange and charm quarks, from lattice QCD to precision experiments. 1. Prelude: scales and symmetry breaking patterns 1.1 The quark mass hierarchy. QCD without quarks, or with infinitely heavy quarks, has a remarkable feature: it is a gauge field theory with no parameter...
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We derive an effective colour chiral action with a background gauge field. The action describes configurations of soliton-skyrmion type. Kinetic term constant f2 0 , analogue of f 2 π , is a phenomenological dimensional parameter of the model; d = 4 terms are unique up to the choice of background gauge field. The case of SU(2) colour group is discussed in detail. We study an isolated configurat...
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We present a holographic dual of four-dimensional, large Nc QCD with massless flavors. This model is constructed by placing Nf probe D8-branes into a D4 background, where supersymmetry is completely broken. The chiral symmetry breaking in QCD is manifested as a smooth interpolation of D8-D8 pairs in the supergravity background. The meson spectrum is examined by analyzing a five-dimensional Yang...
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A primary focus of study in particle and nuclear physics is the testing of quantum chromodynamics. 1 Although it is generally believed that QCD is the fundamental theory of the stong interactions, quantitative tests have so far been restricted to the high momentum transfer domain where perturbative methods based on asymptotic freedom can be used. Tests of the confining non-perturbative aspects ...
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A microscopic framework of nuclear energy density functionals is reviewed, which establishes a direct relation between low-energy QCD and nuclear structure, synthesizing effective field theory methods and principles of density functional theory. Guided by two closely related features of QCD in the lowenergy limit: a) in-medium changes of vacuum condensates, and b) spontaneous breaking of chiral...
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ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 1996
ISSN: 0146-6410
DOI: 10.1016/0146-6410(96)00011-7