منابع مشابه
Asymptotic Freedom 1. Understanding Asymptotic Freedom in Qcd
I discuss how the basic phenomenon of asymptotic freedom in QCD can be understood in elementary physical terms. Similarly, I discuss how the long-predicted phenomenon of “gluonization of the proton” – recently spectacularly confirmed at HERA – is a rather direct manifestation of the physics of asymptotic freedom. I review the broader significance of asymptotic freedom in QCD in fundamental phys...
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We put forward the low-energy confining asymptote of the solution < WC > (valid for large macroscopic contours C of the size >> 1/ΛQCD ) to the large N Loop equation in the D = 4 U(N) Yang-Mills theory with the asymptotic freedom in the ultraviolet domain. Adapting the multiscale decomposition characteristic of the Wilsonean renormgroup, the proposed Ansatz for the loop-average is composed in o...
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For a general class of scalar–tensor gravity theories, we discuss how to recover asymptotic freedom regimes when cosmic time t → ±∞. Such a feature means that the effective gravitational coupling Geff → 0, while cosmological solutions can asymptotically assume de Sitter or power–law behaviours. In our opinion, through this mechanism, it is possible to cure some shortcomings in inflationary and ...
متن کاملAsymptotic freedom: history and interpretation
In this lecture, the early history of asymptotic freedom is discussed. The first completely correct derivation of β0 in non-abelian gauge theory (Khriplovich, 1969) was done in the Coulomb gauge; this derivation is reproduced (in modernized terms) in Sect. 2. A qualitative physical explanation of asymptotic freedom via chromomagnetic properties of vacuum (Nielsen, 1981) is discussed in Sect. 3.
متن کاملThe Problem of Asymptotic Freedom *
There is a growing body of evidence that the running of αs predicted by perturbation (PT) theory is not correctly describing the accelerator experiments at the highest energies. A natural explanation is provided by the authors’ 1992 proposal that in fact the true running predicted by the nonperturbatively defined lattice QCD is different, leading to an ultraviolet fixed point near αs = .1. It i...
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ژورنال
عنوان ژورنال: Transactions of the New York Academy of Sciences
سال: 1980
ISSN: 0028-7113
DOI: 10.1111/j.2164-0947.1980.tb03001.x