Studying the non-leptonic decay of B meson is an important task in particle physics, and any breakthrough in theory may take new blood to this field.

介子的两体非轻子衰变过程是粒子物理中一个很重要的研究课题，任何理论上的突破都会引起广泛的关注。

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One of the most challenging open problems in heavy quarkonium physics is the double charm production in annihilation at B factories.

B 工厂中通过双的单举和遍举的产生是重夸克偶素物理中的一个具有很大挑战性的课题。

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Since 1995, by the promotion of B factory and other large B experiments, the study of B meson decays and CP violation have become one of the hot topics of the international particle physics research.

1995年以来，受B介子工厂和其它B相关大型实验的推动，关于B介子衰变和CP破坏的研究成为国际粒子物理研究的热点之一。

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A. in Physics and B.

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These weapons are designated with the letter "B" followed by the number of the physics package they contain, such as the B61 family of bombs.

CENTERFORSECURITYPOLICY: US Nuclear Stockpile