arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0904.3077hep-ph
收藏

夸克的幺正三角角矩阵

The Matrix of Unitarity Triangle Angles for Quarks

P. F. Harrison, S. Dallison, W. G. Scott

摘要:

在夸克(如轻子)混合的背景下,我们引入了酉三角角矩阵$Φ$的概念,强调它携带着与复混合矩阵$V$本身等价的信息。相对于$V$,角度矩阵$Φ$具有附加的优点,即与基约定和相位约定都无关,因此是可观察的(实际上有几个$Φ$矩阵项,例如,$Φ_{cs}=α$、$Φ_{us}=β$等已经作为直接可测量的/在$B$ -物理实验中测量的被长期研究)。给出了混合矩阵表示与角矩阵表示之间的完全转换公式。我们继续简要地考虑目前状态的实验数据的全角矩阵和一些前景,在夸克和轻子的情况下。

英文摘要:

In the context of quark (as for lepton) mixing, we introduce the concept of the matrix of unitarity triangle angles $Φ$, emphasising that it carries equivalent information to the complex mixing matrix $V$ itself. The angle matrix $Φ$ has the added advantage, with respect to $V$, of being both basis-and phase-convention independent and consequently observable (indeed several $Φ$-matrix entries, eg. $Φ_{cs}=α$, $Φ_{us}=β$ etc. are already long-studied as directly measurable/measured in $B$-physics experiments). We give complete translation formulae between the mixing-matrix and angle-matrix representations. We go on to consider briefly the present state of the experimental data on the full angle matrix and some of the prospects for the future, with reference to both the quark and lepton cases.

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。

↑