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Письма в Журнал экспериментальной и теоретической физики, 2009, том 89, выпуск 11, страницы 631–635
(Mi jetpl437)
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Эта публикация цитируется в 14 научных статьях (всего в 14 статьях)
ПОЛЯ, ЧАСТИЦЫ, ЯДРА
Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops
N. A. Kivel'ab, M. V. Polyakovab, A. A. Vladimirovc a Petersburg Nuclear Physics Institute
b Institute für Theoretical Physics II, Ruhr-Universität Bochum, D--44780 Bochum, Germany
c Bogolubov Laboratory of Theoretical Physics, JINR, 141980 Dubna,
Russia
Аннотация:
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.
Поступила в редакцию: 21.04.2009
Образец цитирования:
N. A. Kivel', M. V. Polyakov, A. A. Vladimirov, “Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops”, Письма в ЖЭТФ, 89:11 (2009), 631–635; JETP Letters, 89:11 (2009), 529–534
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl437 https://www.mathnet.ru/rus/jetpl/v89/i11/p631
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