Precision measurement of the 3d to 2p x-ray energy in kaonic ⁴He

S. Okada , G. Beer , H. Bhang , M. Cargnelli , J. Chiba , Seonho Choi , C. Curceanu , Y. Fukuda

show 25 more authors

T. Hanaki R. S. Hayano M. Iio T. Ishikawa S. Ishimoto T. Ishiwatari K. Itahashi M. Iwai M. Iwasaki B. Juh\'asz P. Kienle J. Marton Y. Matsuda H. Ohnishi H. Outa M. Sato P. Schmid S. Suzuki T. Suzuki H. Tatsuno D. Tomono E. Widmann T. Yamazaki H. Yim J. Zmeskal

Authors on Pith no claims yet

classification ⚛️ nucl-ex

keywords energykaonicx-rayagreementatomsbalmer-seriescalculationsdetectors

0 comments

read the original abstract

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 interaction. The energy of the $3d \to 2p$ transition was determined to be 6467 $\pm$ 3 (stat) $\pm$ 2 (syst) eV. The resulting strong-interaction energy-level shift is in agreement with theoretical calculations, thus eliminating a long-standing discrepancy between theory and experiment.

This paper has not been read by Pith yet.

Precision measurement of the 3d to 2p x-ray energy in kaonic ⁴He

discussion (0)