{"id":353,"date":"2019-09-05T13:57:10","date_gmt":"2019-09-05T04:57:10","guid":{"rendered":"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/?page_id=353"},"modified":"2020-03-19T13:23:01","modified_gmt":"2020-03-19T04:23:01","slug":"%e3%82%aa%e3%83%ab%e3%82%bd%e3%83%9d%e3%82%b8%e3%83%88%e3%83%ad%e3%83%8b%e3%82%a6%e3%83%a0%e3%81%aeinvisible%e5%b4%a9%e5%a3%8a%e3%81%ae%e6%8e%a2%e7%b4%a2","status":"publish","type":"page","link":"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/?page_id=353","title":{"rendered":"\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306einvisible\u5d29\u58ca\u306e\u63a2\u7d22"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"185\" height=\"167\" src=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-edim.jpg\" alt=\"\" class=\"wp-image-711\"\/><figcaption>\u4f59\u5270\u6b21\u5143\u304c\u3042\u308b\u3068\u3001\u5d29\u58ca\u30ac\u30f3\u30de\u7dda\u304c\u9003\u3052\u3066\u898b\u3048\u306a\u304f\u306a\u308b\u3002<\/figcaption><\/figure><\/div>\n\n\n\n<p>TeV \u30b9\u30b1\u30fc\u30eb\u306e\u4f59\u5270\u6b21\u5143\u306a\u3069\u304c\u5b58\u5728\u3057\u305f\u5834\u5408\u3001\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u304c\u5d29\u58ca\u6642\u306b\u6d88\u3048\u3066\u3057\u307e\u3046\u4e8b\u304c\u4e88\u8a00\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u304c\u4e0d\u53ef\u8996\u5d29\u58ca\u3092\u3059\u308b\u73fe\u8c61\u3092\u63a2\u7d22\u3057\u307e\u3057\u305f\u3002<br>\u63a2\u7d22\u306b\u306f\u3001\u7dcf\u8a08\u7d04 1 \u30c8\u30f3\u306e CsI(Tl)\/NaI(Tl) \u30b7\u30f3\u30c1\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3001\u4e2d\u5fc3\u90e8\u3067\u751f\u6210\u3055\u308c\u305f\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u5d29\u58ca\u6642\u306e\u30ac\u30f3\u30de\u7dda\u3092\u78ba\u5b9f\u306b\u6355\u3089\u3048\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"312\" height=\"234\" src=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-det.jpg\" alt=\"\" class=\"wp-image-710\" srcset=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-det.jpg 312w, https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-det-300x225.jpg 300w\" sizes=\"auto, (max-width: 312px) 100vw, 312px\" \/><figcaption>\u30b7\u30f3\u30c1\u30ec\u30fc\u30bf\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5b9f\u9a13\u88c5\u7f6e\u3002<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u4e2d\u5fc3\u306e\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u751f\u6210\u90e8\u5206\u306f\u3001<sup>22<\/sup>Na \u306e \u03b2<sup>+<\/sup> \u7dda\u6e90\u3068\u30b7\u30ea\u30ab\u30a8\u30a2\u30ed\u30b2\u30eb\u304b\u3089\u6210\u3063\u3066\u304a\u308a\u3001\u6f70\u3057\u305f\u30b7\u30f3\u30c1\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30d0\u3092\u4f7f\u7528\u3057\u3066 \u03b2<sup>+<\/sup> \u7dda\u306e\u30bf\u30b0\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u691c\u51fa\u5668\u3092\u7528\u3044\u3066\u3001\u300c\u30b7\u30f3\u30c1\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30d0\u3067\u30bf\u30b0\u3055\u308c\u305f\u300d\uff0b\u300c<sup>22<\/sup>Na \u304c \u03b2<sup>+<\/sup> \u5d29\u58ca\u3057\u305f\u969b\u306e 1275keV \u30ac\u30f3\u30de\u7dda\u304c\u691c\u51fa\u3055\u308c\u305f\u300d\uff0b\u300cCsI(Tl)\/NaI(Tl) \u30b7\u30f3\u30c1\u30ec\u30fc\u30bf\u306b\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u304b\u3089\u306e\u30ac\u30f3\u30de\u7dda\u304c\u691c\u51fa\u3055\u308c\u306a\u304b\u3063\u305f\u300d\u3068\u3044\u3046\u6761\u4ef6\u3067\u3001\u7d04\u534a\u5e74\u9593\u306b\u308f\u305f\u3063\u3066\u4e0d\u53ef\u8996\u5d29\u58ca\u3092\u63a2\u7d22\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"481\" height=\"310\" src=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-result.jpg\" alt=\"\" class=\"wp-image-712\" srcset=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-result.jpg 481w, https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/invis-result-300x193.jpg 300w\" sizes=\"auto, (max-width: 481px) 100vw, 481px\" \/><figcaption>\u5f97\u3089\u308c\u305f\u30a8\u30cd\u30eb\u30ae\u30fc\u30b9\u30da\u30af\u30c8\u30eb\u300250keV\u4ee5\u4e0b\u306b\u30a4\u30d9\u30f3\u30c8\u306f\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u3002<\/figcaption><\/figure><\/div>\n\n\n\n<p> \u3053\u306e\u30b9\u30da\u30af\u30c8\u30eb\u306f\u3001\u30b7\u30f3\u30c1\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30d0\u3068  1275keV \u30ac\u30f3\u30de\u7dda\u3067\u30bf\u30b0\u3057\u305f\u6642\u306e CsI(Tl)\/NaI(Tl)  \u30b7\u30f3\u30c1\u30ec\u30fc\u30bf\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u5206\u5e03\u3067\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u30a4\u30d9\u30f3\u30c8\u306f\u3001\u5bfe\u6d88\u6ec5\u306b\u76f8\u5f53\u3059\u308b 1022keV \u306b\u30d4\u30fc\u30af\u3092\u4f5c\u3063\u3066\u304a\u308a\u3001\u4e0d\u53ef\u8996\u5d29\u58ca\u306b\u5bfe\u5fdc\u3059\u308b 50keV  \u4ee5\u4e0b\u306b\u306f\u30a4\u30d9\u30f3\u30c8\u304c\u7121\u3044\u4e8b\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u7d50\u679c\u304b\u3089\u3001\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u4e0d\u53ef\u8996\u5d29\u58ca\u306b\u5bfe\u3059\u308b\u5206\u5c90\u6bd4\u306b\u5bfe\u3057\u3066 6.9\u00d710<sup>-7<\/sup> (90%CL) \u4ee5\u4e0b\u306e\u5236\u9650\u3092\u5f97\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3057\u305f\u3002\u4f59\u5270\u6b21\u5143\u306e\u5236\u9650\u306b\u76f4\u3059\u3068\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u30b9\u30b1\u30fc\u30eb\u304c 0.42 TeV \u4ee5\u4e0a (n=2) \u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"87\" src=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/document_research-e1567500005520.png\" alt=\"\" class=\"wp-image-118\"\/><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u767a\u8868\u8cc7\u6599<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2020\/03\/mizuhara-jps2020spring.pdf\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"\u6db2\u4f53\u30ad\u30bb\u30ce\u30f3\u691c\u51fa\u5668\u3092\u7528\u3044\u305f\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u30a4\u30f3\u30d3\u30b8\u30d6\u30eb\u5d29\u58ca\u306e\u63a2\u7d22\u5b9f\u9a13\u306e\u63d0\u6848 (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\">\u6db2\u4f53\u30ad\u30bb\u30ce\u30f3\u691c\u51fa\u5668\u3092\u7528\u3044\u305f\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u30a4\u30f3\u30d3\u30b8\u30d6\u30eb\u5d29\u58ca\u306e\u63a2\u7d22\u5b9f\u9a13\u306e\u63d0\u6848<\/a>, (\u6c34\u539f\u614e\u4e00\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u7b2c75 \u56de\u5e74\u6b21\u5927\u4f1a\u30012020 \u5e743\u670816\u65e5\u3001\u540d\u53e4\u5c4b\u5927\u5b66(\u73fe\u5730\u958b\u50ac\u4e2d\u6b62))<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22 (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/25pZE-1-kaneda.pdf\" target=\"_blank\">\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22<\/a>, (\u517c\u7530\u5145\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u7b2c 63 \u56de\u5e74\u6b21\u5927\u4f1a\u30012008 \u5e74 3 \u6708 25 \u65e5\u3001\u8fd1\u757f\u5927\u5b66)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22 (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/24aYC-11-kaneda.pdf\" target=\"_blank\">\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22<\/a>, (\u517c\u7530\u5145\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u7b2c 62 \u56de\u5e74\u6b21\u5927\u4f1a\u30012007 \u5e74 9 \u6708 24 \u65e5\u3001\u5317\u6d77\u9053\u5927\u5b66)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22 (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/gakkai_2007_v10b.pdf\" target=\"_blank\">\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22<\/a>, (\u662f\u6728\u7384\u592a\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u6625\u5b63\u5927\u4f1a\u30012007 \u5e74 3 \u6708 25 \u65e5\u3001\u9996\u90fd\u5927\u5b66)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22 (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/master.pdf\" target=\"_blank\">\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u306e\u7a00\u5d29\u58ca\u3092\u7528\u3044\u305f\u4f59\u5270\u6b21\u5143\u306e\u63a2\u7d22<\/a>, (\u662f\u6728\u7384\u592a\u30012006 \u5e74\u5ea6\u4fee\u58eb\u5b66\u4f4d\u8ad6\u6587)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"Search for invisible decay of ortho-Positronium (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/jps2006Hawaii.pdf\" target=\"_blank\">Search for invisible decay of ortho-Positronium<\/a>, (\u96e3\u6ce2\u4fca\u96c4\u3001JPS APS \u5408\u540c\u30df\u30fc\u30c6\u30a3\u30f3\u30b0\u30012006 \u5e74 10 \u6708 30 \u65e5\u3001\u30b7\u30a7\u30e9\u30c8\u30f3\u30ef\u30a4\u30ad\u30ad\u30db\u30c6\u30eb)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"o-Ps\u2192invisible \u5d29\u58ca\u306e\u63a2\u7d22 \u30fc\u6982\u8981\u3068\u691c\u51fa\u5668\u8a2d\u8a08\u30fc (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/jps2006spring-v1.pdf\" target=\"_blank\">o-Ps\u2192invisible \u5d29\u58ca\u306e\u63a2\u7d22 \u30fc\u6982\u8981\u3068\u691c\u51fa\u5668\u8a2d\u8a08\u30fc<\/a>, (\u96e3\u6ce2\u4fca\u96c4\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u7b2c 61 \u56de\u5e74\u6b21\u5927\u4f1a\u30012006 \u5e74 3 \u6708 27 \u65e5\u3001\u611b\u5a9b\u5927\u5b66)<\/li><li><a rel=\"noreferrer noopener\" aria-label=\"o-Ps\u2192invisible \u5d29\u58ca\u306e\u63a2\u7d22II \u30fc\u691c\u51fa\u5668\u306e\u88fd\u4f5c\u30fc (\u65b0\u3057\u3044\u30bf\u30d6\u3067\u958b\u304f)\" href=\"https:\/\/tabletop.icepp.s.u-tokyo.ac.jp\/wp-content\/uploads\/2019\/09\/27Mar06_koreki_5th.pdf\" target=\"_blank\">o-Ps\u2192invisible \u5d29\u58ca\u306e\u63a2\u7d22II \u30fc\u691c\u51fa\u5668\u306e\u88fd\u4f5c\u30fc<\/a>, (\u662f\u6728\u7384\u592a\u3001\u65e5\u672c\u7269\u7406\u5b66\u4f1a\u7b2c 61 \u56de\u5e74\u6b21\u5927\u4f1a\u30012006 \u5e74 3 \u6708 27 \u65e5\u3001\u611b\u5a9b\u5927\u5b66)<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TeV \u30b9\u30b1\u30fc\u30eb\u306e\u4f59\u5270\u6b21\u5143\u306a\u3069\u304c\u5b58\u5728\u3057\u305f\u5834\u5408\u3001\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u304c\u5d29\u58ca\u6642\u306b\u6d88\u3048\u3066\u3057\u307e\u3046\u4e8b\u304c\u4e88\u8a00\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30aa\u30eb\u30bd\u30dd\u30b8\u30c8\u30ed\u30cb\u30a6\u30e0\u304c\u4e0d\u53ef\u8996\u5d29\u58ca\u3092\u3059\u308b\u73fe\u8c61\u3092\u63a2\u7d22\u3057\u307e\u3057\u305f\u3002\u63a2\u7d22\u306b\u306f\u3001\u7dcf\u8a08\u7d04 1 \u30c8\u30f3\u306e CsI(T 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