原子宇称违反：原理，最近的结果，目前的动机
Atomic Parity Violation : Principles, Recent Results, Present Motivations
摘要：
本文综述了铯核弱电荷Qw的测定所取得的进展，它使原子宇称破坏测量的地位提高到精密电弱测量的地位。不仅需要对高度禁戒的6S-7S跃迁中的电弱不对称性进行精确测量，而且还需要精确的校准过程。1999年博尔德小组的精确测量表明，Qw与理论预测有2.5 σ的偏差。这引发了许多粒子物理学家的建议，以及原子理论物理学家对几个修正来源的检查。大约三年后，这个分歧在没有诉诸《新物理学》的情况下被消除了。与此同时，一个原始的实验方法是在我们的小组开发了十多年。它是基于左右不对称放大的受激发射检测。我们将展示我们决定性的最新进展以及我们的最新成果。我们强调了对电弱理论的重要影响，未来铯的测量可能会被推到0.1%的水平。其他可能的方法目前正在几个原子中探索。
英文摘要：
We review the progress made in the determination of the weak charge, Q\_w, of the cesium nucleus which raises the status of Atomic Parity Violation measurements to that of a precision electroweak test. Not only is it necessary to have a precision measurement of the electroweak asymmetry in the highly forbidden 6S-7S transition, but one also needs a precise calibration procedure. The 1999 precision measurement by the Boulder group implied a 2.5 sigma deviation of Q\_w from the theoretical prediction. This triggered many particle physicist suggestions as well as examination by atomic theoretical physicists of several sources of corrections. After about three years the disagreement was removed without appealing to "New Physics". Concurrently, an original experimental approach was developed in our group for more than a decade. It is based on detection by stimulated emission with amplification of the left- right asymmetry. We present our decisive, recent progress together with our latest results. We emphasize the important impact for electroweak theory, of future measurements in cesium possibly pushed to the 0.1% level. Other possible approaches are currently explored in several atoms.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
