对被迷住的强子的弱衰变的全面回顾(D0/+,[公式:见文本]和[公式:见文本])基于对BESIII实验中eean灭阈值数据的分析。讨论了当前的实验挑战和在理解迷人的强子衰变方面的成功。通过测量迷住的强子的纯轻子和半轻子衰变,可以提供量子色动力学的精确校准和标准模型的测试。轻子的普遍性是在被迷住的介子到三代轻子的纯轻子衰变中进行的。阈值数据样本中的量子相关性提供了对中性D介子衰变中的强相的访问,并探测了迷住的Λc重子的衰变动力学。具有接近阈值产生的迷人粒子对的魅力物理学研究是BESIII独有的,并提供了许多重要的机遇和挑战。
A comprehensive review of weak decays of charmed hadrons (D 0/ +, [Formula: see text] and [Formula: see text]) based on analyses of the threshold data from e + e - annihilation in the BESIII experiment is presented. Current experimental challenges and successes in understanding decays of the charmed hadrons are discussed. Precise calibrations of quantum chromodynamics and tests of the standard model are provided by measurements of purely leptonic and semi-leptonic decays of charmed hadrons, and lepton universality is probed in purely leptonic decays of charmed mesons to three generations of leptons. Quantum correlations in threshold data samples provide access to strong phases in the neutral D meson decays and probe the decay dynamics of the charmed Λ c baryon. Charm physics studies with near-threshold production of charmed particle pairs are unique to BESIII, and provide many important opportunities and challenges.