1. Results of the 횵− atomic X-ray measurement in J-PARC E07.
- Author
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Fujita, Manami, Ishikawa, Y., Ukai, M., Kanauchi, H., Koike, T., Tamura, H., Hosomi, K., Yamamoto, T.O., Ekawa, H., Hayakawa, S.H., Nakazawa, K., Yoshida, J., Yoshimoto, M., Kasagi, A., Nishimura, N., and Hayashi, K.
- Subjects
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X-ray measurement , *NUCLEAR emulsions , *PHOTONS , *X-ray detection , *NUCLEAR counters - Abstract
Ξ− atomic X-ray spectroscopy is one of the most useful methods for investigation of the Ξ-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Ξ− decay. For the first Ξ− atomic X-ray spectroscopy experiment, a novel method of identifying stopped Ξ− events using nuclear emulsion was developed to reject background photons from in-flight Ξ− decay. We succeeded in reducing the background to 1/170 by this method employing coincidence measurements using the nuclear emulsion and X-ray detectors. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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