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arXiv · 0904.3008

Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops

N. A. Kivel·M. V. Polyakov·A. A. Vladimirov
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Abstract

We develop the method of calculation of the leading chiral (infrared) logarithms to an arbitrary loop order for various form factors of Nambu-Goldstone bosons. The method is illustrated on example of scalar and vector form factors in massless 4D O(N+1)/O(N) sigma-model. The analytical properties of the form factors are derived. The leading chiral (infrared) logarithms are summed up in the large N limit.

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N. A. Kivel, M. V. Polyakov, A. A. Vladimirov. 2009-04-20. Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops. https://doi.org/10.1134/s0021364009110022

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