期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.262001
关键词
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资金
- Alexander von Humboldt Foundation
- BMBF
- Deutsche Forschungsgemeinschaft
- Heisenberg-Landau Programme
- Russian Foundation for Fundamental Research Grants [06-02-16215, 07-0291557]
We derive nonlinear recursion relations for the leading chiral logarithms (LLs) in massless theories. These relations not only provide a very efficient method of computation of LLs (e.g., the 33-loop contribution is calculated in a dozen of seconds on a PC) but also equip us with a powerful tool for the summation of the LLs. Our method is not limited to chiral perturbation theory only; it is pertinent to any nonrenormalizable effective field theory such as, for instance, the theory of critical phenomena, low-energy quantum gravity, etc.
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