Precision measurement of the $3d\to 2p$ x-ray energy in kaonic ${}^4$He

S. Okada, G. Beer, H. Bhang +30

We have measured the Balmer-series x-rays of kaonic ${}^4$He atoms using novel large-area silicon drift x-ray detectors in order to study the low-energy $\bar{K}$-nucleus strong inte…