Others, though, have a different explanation for the b meson decay anomaly—a proposed new particle called a leptoquark.

不过，其他人对 b 介子衰变异常有不同的解释——一种被提议称为轻夸克的新粒子。

Theoreticians, meanwhile, have been busy devising ways to extend the Standard Model to try to explain those mesons' anomalous decays.

与此同时，理论家们一直忙于设计扩展标准模型的方法，以试图解释这些介子的反常衰变。

One way in which these mesons decay is by the transformation of the bottom antiquark into a so-called " strange" antiquark and a pair of leptons, a different class of fundamental particle that includes electrons and their more massive cousins, muons.

这些介子衰变的一种方式是将底部的反夸克转变为所谓的“奇异”反夸克和一对轻子，轻子是一种不同的基本粒子，包括电子及其质量更大的表亲介子。