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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39216

    Authors: GENG,CQ;HSU,IJ;LIN,YC
    Contributors: 物理研究所
    Keywords: KAON DECAYS
    Date: 1995
    Issue Date: 2010-07-08 14:08:36 (UTC+8)
    Publisher: 中央大學
    Abstract: We study the long distance contribution to K+ --> pi(+)<nu(nu)over bar> by using chiral perturbation theory. We find that the tree level O(P-2) contribution vanishes identically without assuming the large N-c limit. The leading contribution arises from the one-loop amplitude, which is O(P-4) in the chiral power counting. The branching ratio of the long distance contribution is found to be of order 10(-7) smaller compared with that of short distance one and hence is completely negligible.
    Appears in Collections:[物理研究所] 期刊論文

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