Phenomenology of neutral D-meson decays and double-flavour oscillations
Phenomenology of neutral D-meson decays and double-flavour oscillations
复制标题
中性D介子衰变和双味振荡的现象学
DOI：
10.1007/s100500050200
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Ya. Azimov
中科院分区：
文献类型：
--
作者：
Ya. Azimov
抽象。中性D介子的衰变被认为是唯象的，没有调用任何特定的模型。特别注意的是级联衰变与中间中性K介子相干双味振荡（CDFO）成为可能。我们显示的必要性和独特的可能性的实验CDFO。它们允许D介子本征态的宽度和质量相互关联，以分离由于D 0-<$D0混合和/或Cabibbo偏好与双重抑制跃迁引起的干涉效应。这样的实验提供了唯一已知的方法，以明确的模型无关的测量所有CP违反参数和卡比博双重抑制的振幅，新物理学可能有更突出的表现。类似的实验对于带电D介子衰变到中性K介子也是有用和有趣的。
Abstract. Decays of neutral D-mesons are considered phenomenologically without invoking any particular models. Special attention is given to cascade decays with intermediate neutral kaons where coherent double-flavour oscillations (CDFO) become possible. We show necessity and unique possibilities of experiments on CDFO. They allow to relate with each other widths and masses of D-meson eigenstates, to separate interference effects due to D0-¯D0 mixing and/or Cabibbo-favoured vs. doubly-suppressed transitions. Such experiments provide the only known ways to unambiguous model-independent measurements of all CP-violating parameters and of Cabibbo-doubly-suppressed amplitudes, where the New Physics may have more prominent manifestations. Similar experiments would be useful and interesting also for charged D-meson decays to neutral kaons.