Mixing and decay constants of pseudoscalar mesons: the sequel
Mixing and decay constants of pseudoscalar mesons: the sequel
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DOI：
10.1016/s0370-2693(99)00085-4
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发表时间：
1998-12
影响因子：
4.4
通讯作者：
Thorsten Feldmann;P. Kroll;B. Stech
中科院分区：
文献类型：
--
作者：
Thorsten Feldmann;P. Kroll;B. Stech
本文对我们最近提出的新的η-η′混合格式作了进一步的检验和应用。粒子态被分解为光锥Fock表示的正交基向量。由于味对称破缺，衰变常数的混合最多可以等同于粒子态的混合，只要选择一个特定的基。理论和唯象的考虑表明，夸克味基具有这种性质，因此，允许减少混合参数的数量。与其他混合方案的详细比较。
We present further tests and applications of the new η–η′ mixing scheme recently proposed by us. The particle states are decomposed into orthonormal basis vectors in a light-cone Fock representation. Because of flavor symmetry breaking the mixing of the decay constants can be identical to the mixing of particle states at most for a specific choice of this basis. Theoretical and phenomenological considerations show that the quark flavor basis has this property and allows, therefore, for a reduction of the number of mixing parameters. A detailed comparison with other mixing schemes is also presented.