论文标题
$ d^0 $ - $ \ bar {d} {}^0 $混合的效果
Effect of $D^0$-$\bar{D}{}^0$ Mixing upon Cabibbo-favored $D^0$ Decays
论文作者
论文摘要
参数$ y_ {cp} $用于表征$ d^0 $ - $ \ bar {d} {}^0 $ Meson System中的混合。要确定$ y_ {cp} $，可以测量$ d^0 $或$ \ bar {d} {}^0 $衰减到$ cp $ eigenstate的有效衰减宽度，相对于衰减的有效宽度，可衰减衰减，以衰减abbobobobo的味道。当使用$ y_ {cp} $提取有关$ d^0 $ - $ - $ - $ \ bar {d} {d}^0 $混合和$ cp $违规的信息时，通常假定Cabibbo型衰变的衰减宽度通常相当于$ 1/τ$，$ d^0 $ d $ d^0 $ lifetime的互惠。但是，当$ y_ {cp} $以足够高的精度测量时，应考虑到这一点的较小纠正。我们根据符合魅力混合和$ cp $违反参数$ x $，$ y $，$ y $，$ | q/p | $和$ ϕ $来计算此更正。
The parameter $y_{CP}$ is used to characterize mixing in the $D^0$-$\bar{D}{}^0$ meson system. To determine $y_{CP}$, one measures the effective decay width of a $D^0$ or $\bar{D}{}^0$ decaying to a $CP$ eigenstate, relative to the effective width for a decay to a Cabibbo-favored, flavor-specific final state. When using $y_{CP}$ to extract information about $D^0$-$\bar{D}{}^0$ mixing and $CP$ violation, the decay width of the Cabibbo-favored decay is usually assumed to equal $1/τ$, the reciprocal of the $D^0$ lifetime. However, there is a small correction to this that should be taken into account when $y_{CP}$ is measured with sufficiently high precision. We calculate this correction in terms of charm mixing and $CP$ violation parameters $x$, $y$, $|q/p|$, and $ϕ$.
