No Anomaly and New Renormalization Scheme
نویسندگان
چکیده
منابع مشابه
Renormalons and the Renormalization Scheme
According to the recent paper [1], existence or absence of renormalon singularities is related with the analiticity properties of the Gell-Mann – Low function β(g) (g is a coupling constant). Briefly, the results are as follows: (a) Renormalon singularities are absent, if β(g) has a proper behavior at infinity, β(g) ∼ g with α ≤ 1, and its singularities at finite points gc are sufficiently weak...
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The running couplings such as λ(E) depend not only on the energy scale E but also on the specific rules we use to fix the finite parts of δλ(E) and other counterterms. If we change those rules — collectively known as the renormalization scheme — then for the same energy scale E we would get a slightly different running coupling λ(E) 6= λ(E). The difference is due to quantum corrections which us...
متن کاملRenormalization Scheme Dependence
The running couplings such as λ(E) depend not only on the energy scale E, but also on the specific rules we use to fix the finite parts of the δλ(E) and other counterterms. If we change those rules — collectively known as the renormalization scheme — then for the same energy scale E we would get a slightly different running coupling λ(E) 6= λ(E). The difference is due to quantum corrections whi...
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Quantum Chromodynamics (QCD), the gauge field theory which describes the strong interactions of colored quarks and gluons, is one of the components of the SU(3)×SU(2)×U(1) Standard Model. A quark of specific flavor (such as a charm quark) comes in 3 colors; gluons come in eight colors; hadrons are color-singlet combinations of quarks, anti-quarks, and gluons. The Lagrangian describing the inter...
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ژورنال
عنوان ژورنال: Journal of Modern Physics
سال: 2012
ISSN: 2153-1196,2153-120X
DOI: 10.4236/jmp.2012.38091