Probing HZ gamma and H gamma gamma anomalous couplings in the process e(+)e(-)-> H gamma

We propose to measure the HZ gamma and H gamma gamma anomalous couplings in the process e(+)e(-)-> H gamma with the sequential decay of H -> b (b) over bar. The discovery potential of observing the anomalous couplings are explored in detail. Our study shows that future electron positron colliders have great potential to test the HZ gamma and H gamma gamma couplings. Conservative bounds on the two anomalous couplings are also derived when no new physics signal is detected on top of the SM backgrounds.National Science Foundation of China [11275009]SCI(E)中国科技核心期刊(ISTIC)ARTICLEqinghongcao@pku.edu.cn; haoranw@pku.edu.cn; zhangya1221@pku.edu.cn113