{"id":3125,"date":"2025-12-24T21:42:01","date_gmt":"2025-12-24T12:42:01","guid":{"rendered":"https:\/\/blog.id774.net\/entry\/?p=3125"},"modified":"2025-12-27T00:34:15","modified_gmt":"2025-12-26T15:34:15","slug":"%e3%83%ac%e3%83%97%e3%83%88%e3%83%b3%e3%81%ae%e4%b8%96%e4%bb%a3%e6%a7%8b%e9%80%a0%e3%81%af%e3%80%81%e7%a9%ba%e9%96%93%e3%81%a7%e3%81%af%e3%81%aa%e3%81%8f%e6%99%82%e9%96%93%e6%96%b9%e5%90%91%e3%81%ae","status":"publish","type":"post","link":"https:\/\/blog.id774.net\/entry\/2025\/12\/24\/3125\/","title":{"rendered":"\u30ec\u30d7\u30c8\u30f3\u306e\u4e16\u4ee3\u69cb\u9020\u306f\u3001\u7a7a\u9593\u3067\u306f\u306a\u304f\u6642\u9593\u65b9\u5411\u306e\u69cb\u9020\u304c\u6295\u5f71\u3055\u308c\u305f\u7d50\u679c\u304b"},"content":{"rendered":"<p class=\"meta\">\u524d\u63d0\uff1a\u672c\u7a3f\u306f\u3001\u6628\u65e5\u66f8\u3044\u305f\u300c<a href=\"https:\/\/blog.id774.net\/entry\/2025\/12\/24\/3114\/\">\u7c92\u5b50\u3068\u6642\u7a7a\u306f\u672c\u5f53\u306b\u300e\u305d\u3053\u306b\u3042\u308b\u300f\u306e\u304b<\/a>\u300d\u306e\u7d9a\u304d\u3068\u3057\u3066\u3001\u300c\u96fb\u5b50\u30fb\u30df\u30e5\u30fc\u7c92\u5b50\u30fb\u30bf\u30a6\u7c92\u5b50\u300d\u3068\u300c\u5404\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u300d\u3092\u3001<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E6%A8%99%E6%BA%96%E6%A8%A1%E5%9E%8B\">\u6a19\u6e96\u6a21\u578b<\/a>\u306e\u7bc4\u56f2\u3067\u6574\u7406\u3059\u308b\u3002\u3042\u308f\u305b\u3066\u3001\u73fe\u6642\u70b9\u3067\u8aac\u660e\u304c\u3064\u3044\u3066\u3044\u306a\u3044\u9818\u57df\u306b\u3064\u3044\u3066\u3001\u6700\u5c0f\u9650\u306e\u4eee\u8aac\u3082\u63d0\u793a\u3059\u308b\u3002<\/p>\n<hr>\n<h2>1. \u7528\u8a9e\u3068\u5bfe\u8c61\u306e\u56fa\u5b9a<\/h2>\n<p>\u672c\u7a3f\u3067\u6271\u3046\u7c92\u5b50\u306f\u3001\u6a19\u6e96\u6a21\u578b\u306e<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%AC%E3%83%97%E3%83%88%E3%83%B3_(%E7%B4%A0%E7%B2%92%E5%AD%90)\">\u30ec\u30d7\u30c8\u30f3<\/a>\u306e\u3046\u3061\u3001\u8377\u96fb\u30ec\u30d7\u30c8\u30f3\uff08\u96fb\u5b50 e\u3001\u30df\u30e5\u30fc\u7c92\u5b50 \u03bc\u3001\u30bf\u30a6\u7c92\u5b50 \u03c4\uff09\u3068\u3001\u305d\u308c\u305e\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u03bde\u3001\u03bd\u03bc\u3001\u03bd\u03c4\uff09\u3067\u3042\u308b\u3002\u6a19\u6e96\u6a21\u578b\u306e\u7c92\u5b50\u4e00\u89a7\u3068\u57fa\u672c\u7684\u6027\u8cea\uff08\u96fb\u8377\u3001\u30b9\u30d4\u30f3\u3001\u8cea\u91cf\u3001\u5bff\u547d\u306a\u3069\uff09\u306f Particle Data Group\uff08PDG\uff09\u306e Review of Particle Physics\uff08RPP\uff09\u306b\u307e\u3068\u307e\u3063\u3066\u3044\u308b\u3002<\/p>\n<p class=\"note\">\u53c2\u7167\uff1aPDG Particle Properties\uff082024\uff09<a href=\"https:\/\/pdg.lbl.gov\/2024\/listings\/particle_properties.html\">https:\/\/pdg.lbl.gov\/2024\/listings\/particle_properties.html<\/a>\uff08RPP: Phys. Rev. D 110, 030001 (2024)\uff09<\/p>\n<hr>\n<h2>2. \u4e8b\u5b9f\u3068\u3057\u3066\u78ba\u5b9a\u3057\u3066\u3044\u308b\u3053\u3068<\/h2>\n<div class=\"box\">\n<p class=\"label-fact\">\u4e8b\u5b9f A\uff1a\u96fb\u5b50\u30fb\u30df\u30e5\u30fc\u7c92\u5b50\u30fb\u30bf\u30a6\u7c92\u5b50\u306f\u300c\u540c\u3058\u30eb\u30fc\u30eb\u3067\u632f\u308b\u821e\u3046\u300d\u8377\u96fb\u30ec\u30d7\u30c8\u30f3\u3067\u3042\u308b<\/p>\n<ul>\n<li>3 \u3064\u306f\u3044\u305a\u308c\u3082\u30b9\u30d4\u30f3 1\/2 \u306e\u30d5\u30a7\u30eb\u30df\u30aa\u30f3\u3067\u3001\u96fb\u8377\u306f\u3059\u3079\u3066 \u22121\u3002<\/li>\n<li>\u96fb\u78c1\u76f8\u4e92\u4f5c\u7528\u3068\u5f31\u3044\u76f8\u4e92\u4f5c\u7528\u306b\u53c2\u52a0\u3057\u3001\u5f37\u3044\u76f8\u4e92\u4f5c\u7528\uff08\u30b0\u30eb\u30fc\u30aa\u30f3\uff09\u306b\u306f\u53c2\u52a0\u3057\u306a\u3044\u3002<\/li>\n<li>\u9055\u3044\u306f\u4e3b\u306b\u8cea\u91cf\u3068\u5bff\u547d\u3067\u3042\u308a\u3001\u03bc \u3068 \u03c4 \u306f\u4e0d\u5b89\u5b9a\u3067\u5d29\u58ca\u3059\u308b\uff08\u96fb\u5b50\u306f\u5b89\u5b9a\uff09\u3002<\/li>\n<\/ul>\n<\/div>\n<div class=\"box\" style=\"margin-top: 12px;\">\n<p class=\"label-fact\">\u4e8b\u5b9f B\uff1a\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306b\u306f\u300c\u30d5\u30ec\u30fc\u30d0\u30fc\uff08\u03bde\u3001\u03bd\u03bc\u3001\u03bd\u03c4\uff09\u300d\u304c\u3042\u308a\u3001\u6df7\u5408\u3068\u632f\u52d5\u304c\u5b9f\u9a13\u3067\u78ba\u8a8d\u3055\u308c\u3066\u3044\u308b<\/p>\n<ul>\n<li>\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306f\u96fb\u8377 0 \u3067\u3001\u5f31\u3044\u76f8\u4e92\u4f5c\u7528\u3067\u306e\u307f\uff08\u5b9f\u7528\u4e0a\uff09\u89b3\u6e2c\u3055\u308c\u308b\u305f\u3081\u691c\u51fa\u304c\u96e3\u3057\u3044\u3002<\/li>\n<li>\u5927\u6c17\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3067\u306e\u7570\u65b9\u6027\uff08Super-Kamiokande, 1998\uff09\u306a\u3069\u306b\u3088\u308a\u3001\u03bd\u03bc \u304c\u4f1d\u64ad\u4e2d\u306b\u5225\u30d5\u30ec\u30fc\u30d0\u30fc\u3078\u79fb\u308b\u73fe\u8c61\uff08\u632f\u52d5\uff09\u304c\u652f\u6301\u3055\u308c\u305f\u3002<\/li>\n<li>\u592a\u967d\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306b\u5bfe\u3057\u3066\u3082\u3001\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u6210\u5206\u304c\u6e1b\u308b\u4e00\u65b9\u3067\u5168\u30d5\u30ec\u30fc\u30d0\u30fc\u306e\u7dcf\u91cf\u306f\u4fdd\u5b58\u3055\u308c\u308b\u3053\u3068\u304c\u793a\u3055\u308c\u3001\u30d5\u30ec\u30fc\u30d0\u30fc\u5909\u63db\uff08\u632f\u52d5\uff09\u304c\u76f4\u63a5\u7684\u306b\u652f\u6301\u3055\u308c\u305f\uff08SNO, 2001\u20132002\uff09\u3002<\/li>\n<li>PDG \u306f\u3001\uff08\u77ed\u57fa\u7dda\u7570\u5e38\u306a\u3069\u306e\u4f8b\u5916\u7684\u8b70\u8ad6\u3092\u9664\u3051\u3070\uff09\u89b3\u6e2c\u306e\u591a\u304f\u304c 3\u00d73 \u6df7\u5408\u306e\u67a0\u5185\u3067\u6574\u5408\u3059\u308b\u3068\u307e\u3068\u3081\u3066\u3044\u308b\u3002<\/li>\n<\/ul>\n<p class=\"note\">\n    \u53c2\u7167\uff1aSuper-Kamiokande\u300cEvidence for Oscillation of Atmospheric Neutrinos\u300dPhys. Rev. Lett. 81, 1562 (1998)<br \/>\n    <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.81.1562\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.81.1562<\/a>\n  <\/p>\n<p class=\"note\">\n    \u53c2\u7167\uff1aSNO\u300cInteractions Produced by 8B Solar Neutrinos &#8230;\u300dPhys. Rev. Lett. 87, 071301 (2001)<br \/>\n    <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.87.071301\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.87.071301<\/a>\n  <\/p>\n<p class=\"note\">\n    \u53c2\u7167\uff1aSNO\u300cDirect Evidence for Neutrino Flavor Transformation &#8230;\u300dPhys. Rev. Lett. 89, 011301 (2002)<br \/>\n    <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.89.011301\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.89.011301<\/a>\n  <\/p>\n<p class=\"note\">\n    \u53c2\u7167\uff1aPDG\u300cNeutrino Masses, Mixing, and Oscillations\u300d\u30ec\u30d3\u30e5\u30fc\uff082024\uff09<br \/>\n    <a href=\"https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf\">https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf<\/a>\n  <\/p>\n<\/div>\n<hr>\n<h2>3. \u89b3\u6e2c\u53f2\u3068\u3057\u3066\u62bc\u3055\u3048\u308b\u3079\u304d\u70b9\uff08\u4e8b\u5b9f\uff09<\/h2>\n<h3>3.1 \u96fb\u5b50\uff08e\uff09\u3068\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u03bde\uff09<\/h3>\n<p>\u96fb\u5b50\u305d\u306e\u3082\u306e\u306f\u539f\u5b50\u7269\u7406\u3068\u3057\u3066\u78ba\u7acb\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u3053\u3067\u306f\u300c\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c\u5b9f\u9a13\u7684\u306b\u691c\u51fa\u3055\u308c\u305f\u300d\u3068\u3044\u3046\u7bc0\u76ee\u3060\u3051\u3092\u62bc\u3055\u3048\u308b\u3002\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u76f4\u63a5\u691c\u51fa\u306f Reines \u3068 Cowan \u306e\u4e00\u9023\u306e\u7814\u7a76\u3067\u5b9f\u73fe\u3057\u3001\u306e\u3061\u306b\u8ad6\u6587\u3068\u3057\u3066\u307e\u3068\u3081\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n<p class=\"note\">\n  \u53c2\u7167\uff1aReines &#038; Cowan\u300cDetection of the Free Antineutrino\u300dPhys. Rev. 117, 159 (1960)<br \/>\n  <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRev.117.159\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRev.117.159<\/a>\n<\/p>\n<h3>3.2 \u30df\u30e5\u30fc\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u03bd\u03bc\uff09\u306e\u5b58\u5728\uff081962\uff09<\/h3>\n<p>\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c 1 \u7a2e\u985e\u3067\u306f\u306a\u3044\u3053\u3068\u306f\u3001\u52a0\u901f\u5668\u5b9f\u9a13\uff08Brookhaven, 1962\uff09\u3067\u306e\u300c\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u03bd\u53cd\u5fdc\u300d\u306b\u3088\u308a\u652f\u6301\u3055\u308c\u3001\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u306f\u7570\u306a\u308b\u300c\u30df\u30e5\u30fc\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u300d\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u304c\u793a\u3055\u308c\u305f\u3002<\/p>\n<p class=\"note\">\n  \u53c2\u7167\uff1aDanby et al.\u300cObservation of High-Energy Neutrino Reactions and the Existence of Two Kinds of Neutrinos\u300dPhys. Rev. Lett. 9, 36 (1962)<br \/>\n  <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.9.36\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.9.36<\/a>\n<\/p>\n<h3>3.3 \u30bf\u30a6\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u03bd\u03c4\uff09\u306e\u76f4\u63a5\u89b3\u6e2c\uff082000\uff09<\/h3>\n<p>\u03bd\u03c4 \u306f\u9577\u304f\u300c\u5b58\u5728\u304c\u671f\u5f85\u3055\u308c\u308b\u304c\u76f4\u63a5\u89b3\u6e2c\u304c\u96e3\u3057\u3044\u300d\u5bfe\u8c61\u3060\u3063\u305f\u304c\u3001DONUT \u5b9f\u9a13\u304c\u30bf\u30a6\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u8377\u96fb\u30ab\u30ec\u30f3\u30c8\u76f8\u4e92\u4f5c\u7528\u4e8b\u8c61\u3092\u793a\u3057\u3001\u03bd\u03c4 \u3092\u7b2c 3 \u4e16\u4ee3\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u3057\u3066\u76f4\u63a5\u89b3\u6e2c\u3057\u305f\u3002<\/p>\n<p class=\"note\">\n  \u53c2\u7167\uff1aDONUT Collaboration\u300cObservation of Tau Neutrino Interactions\u300darXiv:hep-ex\/0012035 (2000)<br \/>\n  <a href=\"https:\/\/arxiv.org\/abs\/hep-ex\/0012035\">https:\/\/arxiv.org\/abs\/hep-ex\/0012035<\/a>\n<\/p>\n<hr>\n<h2>4. \u6a19\u6e96\u6a21\u578b\u304c\u300c\u8aac\u660e\u3057\u3066\u3044\u308b\u3053\u3068\u300d\u3068\u300c\u8aac\u660e\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u300d<\/h2>\n<div class=\"box\">\n<p class=\"label-fact\">\u6a19\u6e96\u6a21\u578b\u304c\u8aac\u660e\u3057\u3066\u3044\u308b\uff08\u30e2\u30c7\u30eb\u5185\u90e8\u306e\u8aac\u660e\uff09<\/p>\n<ul>\n<li>\u8377\u96fb\u30ec\u30d7\u30c8\u30f3\u3068\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c\u3001\u30b2\u30fc\u30b8\u76f8\u4e92\u4f5c\u7528\uff08\u96fb\u78c1\u30fb\u5f31\uff09\u306b\u5f93\u3063\u3066\u53cd\u5fdc\u30fb\u5d29\u58ca\u3092\u8d77\u3053\u3059\u3053\u3068\u3002<\/li>\n<li>\u7c92\u5b50\u306e\u7a2e\u985e\uff08\u5834\uff09\u3068\u76f8\u4e92\u4f5c\u7528\u306e\u5f62\uff08\u5bfe\u79f0\u6027\uff09\u3092\u4e0e\u3048\u308c\u3070\u3001\u591a\u304f\u306e\u6563\u4e71\u65ad\u9762\u7a4d\u3084\u5d29\u58ca\u7387\u304c\u8a08\u7b97\u3067\u304d\u3001\u5b9f\u9a13\u3068\u6574\u5408\u3059\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n<p class=\"note\">\u53c2\u7167\uff1aPDG Review of Particle Physics\uff08\u7dcf\u8aacPDF\u3001\u5404\u7ae0\u306e\u5165\u53e3\uff09<a href=\"https:\/\/lss.fnal.gov\/archive\/openaccess\/openaccess_cpc_40_10_100001.pdf\">https:\/\/lss.fnal.gov\/archive\/openaccess\/openaccess_cpc_40_10_100001.pdf<\/a><\/p>\n<\/div>\n<div class=\"box\" style=\"margin-top: 12px;\">\n<p class=\"label-hypo\">\u6a19\u6e96\u6a21\u578b\u304c\u8aac\u660e\u3057\u3066\u3044\u306a\u3044\uff08\u672a\u89e3\u660e\uff0f\u5916\u90e8\u5165\u529b\uff09<\/p>\n<ul>\n<li>\u306a\u305c\u30ec\u30d7\u30c8\u30f3\u304c 3 \u4e16\u4ee3\u3042\u308b\u306e\u304b\uff08\u4e16\u4ee3\u6570\u306e\u7406\u7531\uff09\u3002<\/li>\n<li>\u306a\u305c\u8cea\u91cf\u304c\u305d\u306e\u5024\u30fb\u6bd4\uff08e &lt; \u03bc &lt; \u03c4\uff09\u306b\u306a\u308b\u306e\u304b\uff08\u8cea\u91cf\u968e\u5c64\u306e\u7406\u7531\uff09\u3002<\/li>\n<li>\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u8cea\u91cf\u306e\u8d77\u6e90\uff08\u6a19\u6e96\u6a21\u578b\u306e\u6700\u5c0f\u5f62\u3067\u306f\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u8cea\u91cf\u3092\u81ea\u7136\u306b\u8aac\u660e\u3067\u304d\u305a\u3001\u62e1\u5f35\u304c\u5fc5\u8981\u306b\u306a\u308b\uff09\u3002<\/li>\n<\/ul>\n<p class=\"note\">\u53c2\u7167\uff1aPDG\u300cNeutrino Masses, Mixing, and Oscillations\u300d\u30ec\u30d3\u30e5\u30fc\uff082024\uff09<a href=\"https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf\">https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf<\/a><\/p>\n<\/div>\n<hr>\n<h2>5. \u4eee\u8aac\uff08\u63a8\u6e2c\uff09\uff1a\u4e16\u4ee3\u69cb\u9020\u3092\u300c\u6642\u9593\u65b9\u5411\u306e\u30e2\u30fc\u30c9\u300d\u3068\u3057\u3066\u6271\u3046<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u63a8\u6e2c\u3067\u3042\u308b\u3002\u4ee5\u4e0b\u306e\u4eee\u8aac\u306f\u3001\u89b3\u6e2c\u4e8b\u5b9f\u3092\u5426\u5b9a\u305b\u305a\u3001\u6a19\u6e96\u6a21\u578b\u304c\u6b8b\u3057\u3066\u3044\u308b\u300c\u4e16\u4ee3\u6570\u3068\u8cea\u91cf\u968e\u5c64\u306e\u8aac\u660e\u4e0d\u5728\u300d\u306b\u5bfe\u3057\u3066\u3001\u601d\u8003\u306e\u53d6\u3063\u639b\u304b\u308a\u3092\u4e0e\u3048\u308b\u3053\u3068\u3060\u3051\u3092\u76ee\u7684\u3068\u3059\u308b\u3002\u5b9f\u9a13\u7684\u88cf\u4ed8\u3051\u306f\u73fe\u6642\u70b9\u3067\u63d0\u793a\u3067\u304d\u306a\u3044\u3002<\/p>\n<div class=\"box\">\n<p class=\"label-hypo\">\u4eee\u8aac\uff1a\u8377\u96fb\u30ec\u30d7\u30c8\u30f3 3 \u4e16\u4ee3\u306f\u3001\u7a7a\u9593\u7684\u306a\u300c\u5225\u7a2e\u306e\u7c92\u5b50\u300d\u3067\u306f\u306a\u304f\u3001\u540c\u4e00\u81ea\u7531\u5ea6\u306e\u300c\u6642\u9593\u65b9\u5411\u306e\u72ec\u7acb\u30e2\u30fc\u30c9\uff08\u52b1\u8d77\u72b6\u614b\uff09\u300d\u306e\u6295\u5f71\u3067\u3042\u308b<\/p>\n<ul>\n<li>\u96fb\u5b50\u30fb\u30df\u30e5\u30fc\u30fb\u30bf\u30a6\u306f\u3001\u30b2\u30fc\u30b8\u91cf\u5b50\u6570\u304c\u540c\u4e00\u3067\u3042\u308a\u3001\u5dee\u5206\u306f\u8cea\u91cf\u3068\u5bff\u547d\u306b\u4e3b\u3068\u3057\u3066\u73fe\u308c\u308b\u3002<\/li>\n<li>\u3053\u306e\u5dee\u5206\u3092\u3001\u7a7a\u9593\u7684\u306a\u300c\u30b5\u30a4\u30ba\u30fb\u69cb\u9020\u5dee\u300d\u3067\u306f\u306a\u304f\u3001\u4f1d\u64ad\u30fb\u76f8\u4e92\u4f5c\u7528\u306b\u95a2\u308f\u308b\u300c\u72b6\u614b\uff08\u30e2\u30fc\u30c9\uff09\u5dee\u300d\u3068\u307f\u306a\u3059\u3002<\/li>\n<li>\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306b\u304a\u3051\u308b\u300c\u30d5\u30ec\u30fc\u30d0\u30fc\u72b6\u614b\u3068\u8cea\u91cf\u72b6\u614b\u306e\u975e\u4e00\u81f4\uff08\u6df7\u5408\uff09\u300d\u306f\u3001\u72b6\u614b\u8868\u73fe\u304c\u5358\u7d14\u3067\u306a\u3044\u3053\u3068\u3092\u793a\u3059\u89b3\u6e2c\u4e8b\u5b9f\u3067\u3042\u308a\u3001\u30e2\u30fc\u30c9\u7684\u89e3\u91c8\u3068\u4e21\u7acb\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/div>\n<h3>5.1 \u3053\u306e\u4eee\u8aac\u304c\u8aac\u660e\u3057\u305f\u3044\u554f\u3044\uff08\u672a\u89e3\u660e\u306e\u6838\u5fc3\uff09<\/h3>\n<ul>\n<li>\u4e16\u4ee3\u6570\u304c 3 \u3067\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u3092\u3001\u300c\u6642\u7a7a\uff08\u3042\u308b\u3044\u306f\u5834\uff09\u306e\u5074\u306e\u5236\u7d04\u300d\u3068\u3057\u3066\u4f4d\u7f6e\u3065\u3051\u3089\u308c\u306a\u3044\u304b\u3002<\/li>\n<li>\u8cea\u91cf\u968e\u5c64\uff08e &lt; \u03bc &lt; \u03c4\uff09\u304c\u3001\u5b89\u5b9a\u6027\uff08\u5bff\u547d\uff09\u3068\u5f37\u304f\u76f8\u95a2\u3059\u308b\u70b9\u3092\u3001\u30e2\u30fc\u30c9\u306e\u5b89\u5b9a\u6027\u3068\u3057\u3066\u6574\u7406\u3067\u304d\u306a\u3044\u304b\u3002<\/li>\n<\/ul>\n<h3>5.2 \u3053\u306e\u4eee\u8aac\u306e\u5f31\u70b9\uff08\u73fe\u6642\u70b9\u3067\u306e\u9650\u754c\uff09<\/h3>\n<ul>\n<li>\u6570\u5f0f\u30e2\u30c7\u30eb\u3068\u3057\u3066\u5b9a\u5f0f\u5316\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u691c\u8a3c\u53ef\u80fd\u306a\u4e88\u6e2c\u304c\u51fa\u3066\u3044\u306a\u3044\u3002<\/li>\n<li>\u30af\u30a9\u30fc\u30af\u306b\u3082\u4e16\u4ee3\u304c\u3042\u308b\u3053\u3068\u3001 CKM \u884c\u5217\u3084\u8cea\u91cf\u968e\u5c64\u3082\u540c\u6642\u306b\u8aac\u660e\u3067\u304d\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/li>\n<li>\u6700\u7d42\u7684\u306b\u306f\u3001PDG \u304c\u6574\u7406\u3059\u308b\u89b3\u6e2c\uff08\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u6df7\u5408\u30d1\u30e9\u30e1\u30fc\u30bf\u3001\u8cea\u91cf\u9806\u5e8f\u3001CP \u4f4d\u76f8\u306a\u3069\uff09\u306e\u7bc4\u56f2\u3067\u3001\u8ffd\u52a0\u306e\u4e00\u8cab\u6027\u30c1\u30a7\u30c3\u30af\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002<\/li>\n<\/ul>\n<hr>\n<h2>6. \u4e8b\u5b9f\u3068\u63a8\u6e2c\u306e\u5207\u308a\u5206\u3051\uff08\u672c\u7a3f\u306e\u7d50\u8ad6\uff09<\/h2>\n<ul>\n<li><span class=\"label-fact\">\u4e8b\u5b9f<\/span>\uff1a\u30ec\u30d7\u30c8\u30f3\u306f 3 \u4e16\u4ee3\u3042\u308a\u3001\u96fb\u5b50\u30fb\u30df\u30e5\u30fc\u30fb\u30bf\u30a6\u306f\u540c\u3058\u91cf\u5b50\u6570\u306e\u8377\u96fb\u30ec\u30d7\u30c8\u30f3\u3067\u3001\u8cea\u91cf\u3068\u5bff\u547d\u304c\u7570\u306a\u308b\u3002\u5bfe\u5fdc\u3059\u308b\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c\u5b58\u5728\u3057\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306f\u5b9f\u9a13\u7684\u306b\u78ba\u7acb\u3057\u3066\u3044\u308b\u3002<\/li>\n<li><span class=\"label-fact\">\u30e2\u30c7\u30eb\u5185\u90e8\u306e\u8aac\u660e<\/span>\uff1a\u6a19\u6e96\u6a21\u578b\u306f\u3001\u4e0e\u3048\u3089\u308c\u305f\u7c92\u5b50\u30fb\u76f8\u4e92\u4f5c\u7528\u306e\u67a0\u5185\u3067\u591a\u304f\u306e\u73fe\u8c61\u3092\u9ad8\u7cbe\u5ea6\u306b\u518d\u73fe\u3059\u308b\u304c\u3001\u4e16\u4ee3\u6570\u3084\u8cea\u91cf\u968e\u5c64\u306e\u7406\u7531\u306f\u4e0e\u3048\u306a\u3044\u3002<\/li>\n<li><span class=\"label-hypo\">\u63a8\u6e2c<\/span>\uff1a\u4e16\u4ee3\u69cb\u9020\u3092\u300c\u6642\u9593\u65b9\u5411\u306e\u30e2\u30fc\u30c9\u300d\u3068\u307f\u306a\u3059\u89e3\u91c8\u306f\u3001\u672a\u89e3\u660e\u9818\u57df\u306b\u5bfe\u3059\u308b\u6574\u7406\u306e\u67a0\u3068\u3057\u3066\u306f\u4f7f\u3048\u308b\u304c\u3001\u73fe\u6642\u70b9\u3067\u306f\u4eee\u8aac\u306b\u7559\u307e\u308b\u3002<\/li>\n<\/ul>\n<hr>\n<h2>\u53c2\u8003\u6587\u732e\uff08\u5b66\u8853\u30ea\u30f3\u30af\uff09<\/h2>\n<ol>\n<li>Particle Data Group (S. Navas et al.), Review of Particle Physics, Phys. Rev. D 110, 030001 (2024). Particle Properties: <a href=\"https:\/\/pdg.lbl.gov\/2024\/listings\/particle_properties.html\">https:\/\/pdg.lbl.gov\/2024\/listings\/particle_properties.html<\/a><\/li>\n<li>Particle Data Group, Neutrino Masses, Mixing, and Oscillations (2024 review PDF): <a href=\"https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf\">https:\/\/pdg.lbl.gov\/2024\/reviews\/rpp2024-rev-neutrino-mixing.pdf<\/a><\/li>\n<li>Y. Fukuda et al. (Super-Kamiokande Collaboration), Evidence for Oscillation of Atmospheric Neutrinos, Phys. Rev. Lett. 81, 1562 (1998): <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.81.1562\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.81.1562<\/a><\/li>\n<li>Q. R. Ahmad et al. (SNO Collaboration), Measurement of the Rate of \u03bde + d \u2192 p + p + e\u2212 Interactions Produced by 8B Solar Neutrinos, Phys. Rev. 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Rev. 117, 159 (1960): <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRev.117.159\">https:\/\/link.aps.org\/doi\/10.1103\/PhysRev.117.159<\/a><\/li>\n<li>DONUT Collaboration, Observation of Tau Neutrino Interactions, arXiv:hep-ex\/0012035 (2000): <a href=\"https:\/\/arxiv.org\/abs\/hep-ex\/0012035\">https:\/\/arxiv.org\/abs\/hep-ex\/0012035<\/a><\/li>\n<li>PDG Review\uff08\u7dcf\u8aacPDF\u3078\u306e\u5165\u53e3; Open Access copy\uff09: <a href=\"https:\/\/lss.fnal.gov\/archive\/openaccess\/openaccess_cpc_40_10_100001.pdf\">https:\/\/lss.fnal.gov\/archive\/openaccess\/openaccess_cpc_40_10_100001.pdf<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u63d0\uff1a\u672c\u7a3f\u306f\u3001\u6628\u65e5\u66f8\u3044\u305f\u300c\u7c92\u5b50\u3068\u6642\u7a7a\u306f\u672c\u5f53\u306b\u300e\u305d\u3053\u306b\u3042\u308b\u300f\u306e\u304b\u300d\u306e\u7d9a\u304d\u3068\u3057\u3066\u3001\u300c\u96fb\u5b50\u30fb\u30df\u30e5\u30fc\u7c92\u5b50\u30fb\u30bf\u30a6\u7c92\u5b50\u300d\u3068\u300c\u5404\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u300d\u3092\u3001\u6a19\u6e96\u6a21\u578b\u306e\u7bc4\u56f2\u3067\u6574\u7406\u3059\u308b\u3002\u3042\u308f\u305b\u3066\u3001\u73fe\u6642\u70b9\u3067\u8aac\u660e\u304c\u3064\u3044\u3066\u3044\u306a\u3044\u9818\u57df\u306b\u3064\u3044\u3066\u3001\u6700\u5c0f\u9650\u306e\u4eee\u8aac &#8230; <a title=\"\u30ec\u30d7\u30c8\u30f3\u306e\u4e16\u4ee3\u69cb\u9020\u306f\u3001\u7a7a\u9593\u3067\u306f\u306a\u304f\u6642\u9593\u65b9\u5411\u306e\u69cb\u9020\u304c\u6295\u5f71\u3055\u308c\u305f\u7d50\u679c\u304b\" class=\"read-more\" href=\"https:\/\/blog.id774.net\/entry\/2025\/12\/24\/3125\/\" aria-label=\"\u30ec\u30d7\u30c8\u30f3\u306e\u4e16\u4ee3\u69cb\u9020\u306f\u3001\u7a7a\u9593\u3067\u306f\u306a\u304f\u6642\u9593\u65b9\u5411\u306e\u69cb\u9020\u304c\u6295\u5f71\u3055\u308c\u305f\u7d50\u679c\u304b \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8aad\u3080\">\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-3125","post","type-post","status-publish","format-standard","hentry","category-science"],"_links":{"self":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/3125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/comments?post=3125"}],"version-history":[{"count":7,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/3125\/revisions"}],"predecessor-version":[{"id":3149,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/3125\/revisions\/3149"}],"wp:attachment":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/media?parent=3125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/categories?post=3125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/tags?post=3125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}