Speaker
qiyu sha
(中国科学院高能物理研究所)
Description
In the Circular Electron Positron Collider (CEPC), a measurement of the Higgs charge and parity (\textit{CP}) mixing through $e^{+} e^{-} \rightarrow Z H \rightarrow \mu^{+} \mu^{-} H(\rightarrow b \bar{b} / c \bar{c} / g g)$ process is presented, considering a scenario of analyzing $5.6\ a b^{-1}$ $e^{+} e^{-}$ collision data with the center-of-mass energy of $240\ \mathrm{GeV}$.
In this work, a CP-mixing parameter p is greater (less) than $5.40 \times 10^{-2}$ ($ -5.52\times 10^{-2}$) excluded at the $95\%$ confidence level.
This study demonstrates the potential of precise measurement of the hadronic final states of the Higgs boson decay at the CEPC, and will provide key information to look for the \textit{CP}-odd Higgs.
Primary authors
qiyu sha
(中国科学院高能物理研究所)
Yaquan Fang
(Institute of High Energy Physics)
