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。

youdao

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。

youdao

They are looking in particular at how long it takes a B-meson to change its nature, focusing on one particular member of the extended B-meson family, the electrically neutral B0.

ECONOMIST: The arrow of time

B-meson, as the abbreviation suggests, is any meson that contains a bottom (or an antibottom) quark.

ECONOMIST: What��s the matter?

B-meson travelled before it broke down, and thus how long it lasted.

ECONOMIST: How to build a B-factory