Renormalization of K+K-->pi(0)pi(+)pi(-)

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题名:	Renormalization of K+K-->pi(0)pi(+)pi(-)
作者:	Shih,HH;Lin,YC
贡献者:	物理研究所
关键词:	CHIRAL PERTURBATION-THEORY;ANOMALOUS PROCESSES
日期:	1997
上传时间:	2010-07-08 14:06:25 (UTC+8)
出版者:	中央大學
摘要:	We derive the vertices of five-meson and seven-meson anomaly processes from the four dimensional expansion form of the Wess-Zumino term. Using these vertices we calculate the amplitude, for both the finite part and divergent part, of K+K- --> pi(0) pi(+)pi(-) to one loop and renormalize the Lagrangian. The divergent part agrees with the result derived from the path integral approach. The contribution from counter terms is estimated by using the vector meson dominance model. A test of the vertex in the t-channel of K-P --> Sigma(0) pi(0) pi(+)pi(-) near the threshold is discussed. We find that the amplitudes arising from chiral loops and counter terms are of opposite sign and the counter term amplitude is about two times as large as the loop amplitude.
關聯:	CHINESE JOURNAL OF PHYSICS
显示于类别:	[物理研究所] 期刊論文

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