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介绍了动机η-η’ mixing，可以看出由BABAR(s=112GeV2)形状因子所抽取的混合角的值比通常其他过程的拟合值小得多，这就是所谓的“BABAR puzzle"。
Revisiting the radiative decays Jψ→γη(’) and η-η’ mixing
【摘 要】
：
介绍了动机η-η’ mixing，可以看出由BABAR(s=112GeV2)形状因子所抽取的混合角的值比通常其他过程的拟合值小得多，这就是所谓的“BABAR puzzle"。
【机 构】
：
华中师范大学粒子物理研究所
【出 处】
：
全国第十六届重味物理和CP破坏研讨会(HFCPV-2018)
【发表日期】
：
2018年10期
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