Results of the ššµāˆ’ atomic X-ray measurement in J-PARC E07

Īžāˆ’ atomic X-ray spectroscopy is one of the most useful methods for investigation of the Īž-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Īžāˆ’ decay. For the first Īžāˆ’ atomic X-ray spectroscopy experiment, a novel method of identifyin...

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Bibliographic Details
Published in:EPJ Web of Conferences
Main Authors: 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., Hayashi K.
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2022/15/epjconf_hyp2022_03005.pdf
Description
Summary:Īžāˆ’ atomic X-ray spectroscopy is one of the most useful methods for investigation of the Īž-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Īžāˆ’ decay. For the first Īžāˆ’ atomic X-ray spectroscopy experiment, a novel method of identifying stopped Īžāˆ’ events using nuclear emulsion was developed to reject background photons from in-flight Īžāˆ’ decay. We succeeded in reducing the background to 1/170 by this method employing coincidence measurements using the nuclear emulsion and X-ray detectors.
ISSN:2100-014X

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