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Their chemical composition is a key discriminator of origin models. In the present work, we estimate the average composition by an analysis of muons in air showers with AIRES+QGSJET simulation. The data matches the prediction for light hadron primaries and no indication has been found for a gamma-ray dominance.","subitem_description_type":"Abstract"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shinozaki, Kenji"}],"nameIdentifiers":[{"nameIdentifier":"543840","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Chikawa, Michiyuki"}],"nameIdentifiers":[{"nameIdentifier":"543841","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fukushima, Masaki"}],"nameIdentifiers":[{"nameIdentifier":"543842","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hayashida, 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賀也","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"543871","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"榊 直人","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"543872","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"内堀 幸夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"543873","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Chemical Composition of Ultra-High Energy Cosmic Rays Observed by AGASA","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Chemical Composition of Ultra-High Energy Cosmic Rays Observed by AGASA"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-01-07"},"publish_date":"2004-01-07","publish_status":"0","recid":"53279","relation_version_is_last":true,"title":["Chemical Composition of Ultra-High Energy Cosmic Rays Observed by AGASA"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:14:26.251931+00:00"}