{"id":3708,"date":"2016-07-04T10:30:59","date_gmt":"2016-07-04T10:30:59","guid":{"rendered":"https:\/\/t2k-experiment.org\/2016\/07\/t2k%e5%ae%9f%e9%a8%93%e3%81%8ccp%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%8e%a2%e7%b4%a2%e7%b5%90%e6%9e%9c%e3%82%92%e5%85%ac%e8%a1%a8\/"},"modified":"2016-07-04T10:30:59","modified_gmt":"2016-07-04T10:30:59","slug":"t2k%e5%ae%9f%e9%a8%93%e3%81%8ccp%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%8e%a2%e7%b4%a2%e7%b5%90%e6%9e%9c%e3%82%92%e5%85%ac%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/t2k-experiment.org\/ja\/2016\/07\/t2k%e5%ae%9f%e9%a8%93%e3%81%8ccp%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%8e%a2%e7%b4%a2%e7%b5%90%e6%9e%9c%e3%82%92%e5%85%ac%e8%a1%a8\/","title":{"rendered":"T2K\u5b9f\u9a13\u304cCP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306e\u63a2\u7d22\u7d50\u679c\u3092\u516c\u8868"},"content":{"rendered":"<p><i>\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3067\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u78ba\u7387\u306e\u9055\u3044\u3092\u63a2\u308b<\/i><\/p>\n<p>T2K\u5b9f\u9a13\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u30ed\u30f3\u30c9\u30f3\u3067\u958b\u304b\u308c\u305f<a title=\"XXVII International Conference on Neutrino Physics and Astrophysics\" href=\"http:\/\/neutrino2016.iopconfs.org\" target=\"_blank\" rel=\"noopener\">\u7b2c27\u56de\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u56fd\u969b\u4f1a\u8b70\uff08NEUTRINO2016\uff09<\/a>\u306b\u304a\u3044\u3066\u3001\uff08\u53cd\uff09\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306b\u95a2\u3059\u308b\u65b0\u3057\u3044\u7d50\u679c\u3092\u516c\u8868\u3057\u307e\u3057\u305f\u3002\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3067\u3082\u3001\u5927\u6c17\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306b\u5bfe\u5fdc\u3059\u308b\u6df7\u5408\u89d2(\u03b8<sub>23<\/sub>)\u306b\u3088\u308b\u6df7\u5408\u304c\u6700\u5927\u3067\u3042\u308a\u3001CP\u975e\u5bfe\u79f0\u6027\u3092\u304a\u3053\u3059\u4f4d\u76f8(\u03b4<sub>CP<\/sub>)\u304c\u975e\u5bfe\u79f0\u6027\u6700\u5927\u306e\u5024(-\u03c0\/2)\u306b\u8fd1\u304f\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u8cea\u91cf\u9806\u5e8f\u304c\u901a\u5e38\u9806\u5e8f\u3067\u3042\u308b\u5834\u5408\u306b\u6700\u3082\u9069\u5408\u3059\u308b\u3068\u3044\u3046\u3001\u4ee5\u524d\u306e\u7d50\u679c\u3068\u540c\u3058\u50be\u5411\u304c\u898b\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u524d\u56de\u7d50\u679c\u3092\u767a\u8868\u3057\u305f2015\u5e74\u6642\u70b9\u306b\u6bd4\u3079\u3001\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30c7\u30fc\u30bf\u91cf\u3092\u307b\u307c\u500d\u306b\u5897\u3084\u3057\u305f\u3053\u3068\u306b\u52a0\u3048\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30c7\u30fc\u30bf\u3092\u540c\u6642\u306b\u4f7f\u3046\u65b0\u305f\u306a\u624b\u6cd5\u3067\u306e\u89e3\u6790\u3092\u884c\u3044\u307e\u3057\u305f\uff08\u56f31\uff09\u3002\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306bCP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u304c\u3042\u308c\u3070\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3067\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306e\u78ba\u7387\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u4e88\u60f3\u3055\u308c\u307e\u3059\u3002\u4eca\u56de\u306e\u30c7\u30fc\u30bf\u3067\u89b3\u6e2c\u3055\u308c\u305f\u53cd\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u51fa\u73fe\u306e\u4e8b\u8c61\u7387\u306f\u3001\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u51fa\u73fe\u306e\u4e8b\u8c61\u7387\u304b\u3089CP\u5bfe\u79f0\u6027\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3068\u4eee\u5b9a\u3057\u3066\u4e88\u60f3\u3057\u305f\u3082\u306e\u3088\u308a\u3082\u5c0f\u3055\u3044\u3082\u306e\u3067\u3057\u305f\u3002<\/p>\n<p>\u539f\u5b50\u7089\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u5b9f\u9a13\u306b\u3088\u308b\u53cd\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u6d88\u5931\u6e2c\u5b9a\u306e\u7d50\u679c\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\uff13\u4e16\u4ee3\u306e\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306e\u67a0\u7d44\u307f\u3067\u89e3\u6790\u3092\u884c\u3063\u305f\u5834\u5408\u3001T2K\u306e\u73fe\u5728\u306e\u30c7\u30fc\u30bf\u91cf\u3067\u306e\u03b4<sub>CP<\/sub> \u306e90%\u4fe1\u983c\u533a\u9593\u306e\u5927\u304d\u3055\u306f\u3001\u771f\u306e\u03b4<sub>CP<\/sub> \u306e\u5024\u3068\u8cea\u91cf\u9806\u5e8f\u306b\u3088\u308a\u307e\u3059\u304c\u30012\u03c0\uff08\u3064\u307e\u308a\u53ef\u80fd\u306a\u03b4<sub>CP<\/sub>\u306e\u5024\u304c\u3059\u3079\u3066\u542b\u307e\u308c\u308b\uff09\u304b\u30891\u03c0\u7a0b\u5ea6\u3068\u898b\u7a4d\u3082\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u305f\u7d50\u679c\u3001\u03b4<sub>CP<\/sub>\u306e\u5024\u306e90%\u4fe1\u983c\u533a\u9593\u306f\u56f32\u306b\u793a\u3059\u3088\u3046\u306b\u901a\u5e38\u8cea\u91cf\u9806\u5e8f\uff08\u9006\u8cea\u91cf\u9806\u5e8f\uff09\u306b\u5bfe\u3057\u3066[\u20133.02; \u20130.49] ([\u20131.87 ; \u20130.98])\u3068\u306a\u308a\u307e\u3057\u305f\u3002CP\u5bfe\u79f0\u6027\u304c\u4fdd\u5b58\u3055\u308c\u308b\u03b4<sub>CP<\/sub>\u306e\u5024(\u03b4<sub>CP<\/sub>=0\u3068\u03b4<sub>CP<\/sub>=\u03c0)\u306f\u3001\u3075\u305f\u3064\u3068\u3082\u3053\u306e\u533a\u9593\u306e\u5916\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u65b0\u3057\u3044\u7d50\u679c\u306f\u3001\u6a19\u7684\u306b\u7167\u5c04\u3055\u308c\u308b\u967d\u5b50\u6570(protons on target, POT)\u3068\u3057\u3066T2K\u5b9f\u9a13\u306b\u5bfe\u3057\u73fe\u5728\u8a8d\u3081\u3089\u308c\u3066\u3044\u308b\u91cf\u306e\u7d0420%\u306b\u3042\u305f\u308b\u30011.44\u00d710<sup>21<\/sup>POT\u306b\u76f8\u5f53\u3059\u308b\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u4eca\u5f8c\u3001<a title=\"J-PARC\u30e1\u30a4\u30f3\u30ea\u30f3\u30b0\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u627f\u8a8d\u3055\u308c\u308b\" href=\"http:\/\/t2k-experiment.org\/ja\/2016\/04\/j-parc-main-ring-upgrade-approved\/\" target=\"_blank\" rel=\"noopener\">J-PARC\u30e1\u30a4\u30f3\u30ea\u30f3\u30b0<\/a>\u3068\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u30d3\u30fc\u30e0\u30e9\u30a4\u30f3\u306e\u5897\u5f37\u306b\u3088\u308a\u30d3\u30fc\u30e0\u5f37\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u30012021\u5e74\u3054\u308d\u306b\u306f\u73fe\u5728\u306e\u76ee\u6a19\u3067\u3042\u308b7.8\u00d710<sup>21<\/sup> POT\u306b\u5230\u9054\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3055\u3089\u306b\u3001T2K\u5b9f\u9a13\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u6b21\u4e16\u4ee3\u306e\u5b9f\u9a13\u304c\u958b\u59cb\u3055\u308c\u308b\u4e88\u5b9a\u306e2025\u5e74\u3054\u308d\u307e\u3067\u306b20\u00d710<sup>21<\/sup>\u00a0POT\u3092\u53ce\u96c6\u3057\u3001CP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u30923\u03c3\u306e\u611f\u5ea6\u3067\u767a\u898b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u5b9f\u9a13\u3092\u5ef6\u9577\u3059\u308b\u3053\u3068\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>CP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306f\u3001\u5b87\u5b99\u521d\u671f\u306e\u30d3\u30c3\u30b0\u30d0\u30f3\u306e\u969b\u306b\u306f\u7269\u8cea\u3068\u53cd\u7269\u8cea\u304c\u7b49\u91cf\u4f5c\u3089\u308c\u305f\u306f\u305a\u306a\u306e\u306b\u73fe\u5728\u306e\u5b87\u5b99\u306b\u306f\u306a\u305c\u7269\u8cea\u3057\u304b\u6b8b\u3063\u3066\u3044\u306a\u3044\u306e\u304b\u3001\u3068\u3044\u3046\u73fe\u4ee3\u306e\u79d1\u5b66\u3067\u6700\u3082\u6df1\u9060\u306a\u554f\u3044\u306e\u4e00\u3064\u306b\u5bfe\u3059\u308b\u7b54\u3048\u306e\u9375\u3092\u63e1\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u4eca\u56de\u306eT2K\u5b9f\u9a13\u306e\u65b0\u3057\u3044\u7d50\u679c\u306f\u3001\u307e\u3060\u7d71\u8a08\u7684\u306b\u6709\u610f\u3067\u306f\u306a\u3044\u3068\u306f\u3044\u3048\u3001\u6211\u3005\u306e\u5b87\u5b99\u306b\u5bfe\u3059\u308b\u7406\u89e3\u306b\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c\u3053\u308c\u304b\u3089\u3082\u65b0\u305f\u306a\u30d6\u30ec\u30fc\u30af\u30b9\u30eb\u30fc\u3092\u3082\u305f\u3089\u3057\u7d9a\u3051\u3066\u304f\u308c\u308b\u3053\u3068\u3092\u671f\u5f85\u3055\u305b\u307e\u3059\u3002<\/p>\n<p>\u65b0\u3057\u3044T2K\u5b9f\u9a13\u306e\u7d50\u679c\u306b\u95a2\u3059\u308b\u8a73\u7d30\u3084\u4eca\u5f8c\u306e\u5b9f\u9a13\u306e\u898b\u901a\u3057\u306b\u95a2\u3057\u3066\u306f\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce2016\u56fd\u969b\u4f1a\u8b70\u3067\u306e\u767a\u8868\u8cc7\u6599\uff08\u82f1\u8a9e\uff09\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<div id=\"attachment_2733\" style=\"width: 879px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/t2k-experiment.org\/wp-content\/uploads\/sk-events-1-7b.png\"><img decoding=\"async\" aria-describedby=\"caption-attachment-2733\" loading=\"lazy\" class=\" wp-image-2733 \" title=\"T2K (anti)neutrino events at SK.\" alt=\"sk-events-1-7b\" src=\"http:\/\/t2k-experiment.org\/wp-content\/uploads\/sk-events-1-7b.png\" width=\"869\" height=\"673\" \/><\/a><p id=\"caption-attachment-2733\" class=\"wp-caption-text\">\u56f3\uff11\uff1a T2K\u5b9f\u9a13\u306e\u5f8c\u7f6e\u691c\u51fa\u5668\uff08\u30b9\u30fc\u30d1\u30fc\u30ab\u30df\u30aa\u30ab\u30f3\u30c7\uff09\u3067\u89b3\u6e2c\u3055\u308c\u305f\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u5de6\uff09\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\uff08\u53f3\uff09\u306e\u4e8b\u8c61\u306e\u518d\u69cb\u6210\u3055\u308c\u305f\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u30a8\u30cd\u30eb\u30ae\u30fc\u5206\u5e03\u3002\u305d\u308c\u305e\u308c\u306e\u56f3\u3067\u3001\u9ed2\u70b9\u306fT2K\u5b9f\u9a13\u306e\uff08\u53cd\uff09\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u30c7\u30fc\u30bf\u3092\u3001\u9ed2\u7dda\u306f\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u304c\u306a\u304b\u3063\u305f\u5834\u5408\u306e\u4e88\u60f3\u3092\u3001\u9752\u7dda\u306f\u6700\u3082\u30c7\u30fc\u30bf\u3092\u3088\u304f\u30d5\u30a3\u30c3\u30c8\u3059\u308b\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4eee\u5b9a\u3057\u305f\u5834\u5408\u306e\u4e88\u60f3\u3002<\/p><\/div>\n<div id=\"attachment_2731\" style=\"width: 650px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1.png\"><img decoding=\"async\" aria-describedby=\"caption-attachment-2731\" loading=\"lazy\" class=\"size-medium wp-image-2731\" alt=\"Figure 2. Negative log likelihood values as a function of the CP violating phase parameter \u03b4CP; The black (red) curves show the case for the normal (inverted) mass ordering; the black (red) vertical lines with hatch marks show the 90% CL allowed regions for the normal (inverted) mass ordering.  This figure shows the result for T2K neutrino and antineutrino data, combined with reactor antineutrino results.  The CP conserving values (\u03b4CP =0 and \u03b4CP= \u03c0) lie outside the 90% region.\" src=\"http:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1-640x433.png\" width=\"640\" height=\"433\" srcset=\"https:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1-640x433.png 640w, https:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1-1024x693.png 1024w, https:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1-700x474.png 700w, https:\/\/t2k-experiment.org\/wp-content\/uploads\/dcp_Vs_mh_fc_conf_intervals_90CL1.png 1181w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><p id=\"caption-attachment-2731\" class=\"wp-caption-text\">\u56f3\uff12\uff1aCP\u5bfe\u79f0\u6027\u3092\u7834\u308b\u4f4d\u76f8\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u03b4<sub>CP<\/sub>\u306b\u5bfe\u3059\u308b\u3001negative log likelihood\u306e\u5024\u3002\u9ed2\uff08\u8d64\uff09\u306e\u66f2\u7dda\u306f\u901a\u5e38\u8cea\u91cf\u9806\u5e8f\uff08\u9006\u8cea\u91cf\u9806\u5e8f\uff09\u306e\u5834\u5408\u3092\u793a\u3059\u3002\u30cf\u30c3\u30c1\u306e\u3064\u3044\u305f\u9ed2\uff08\u8d64\uff09\u306e\u7e26\u7dda\u306f\u901a\u5e38\u8cea\u91cf\u9806\u5e8f\uff08\u9006\u8cea\u91cf\u9806\u5e8f\uff09\u306b\u5bfe\u3059\u308b\u4fe1\u983c\u5ea690%\u306e\u8a31\u5bb9\u533a\u9593\u3092\u8868\u3059\u3002T2K\u5b9f\u9a13\u306e\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30c7\u30fc\u30bf\u3092\u3001\u539f\u5b50\u7089\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u5b9f\u9a13\u306e\u7d50\u679c\u3068\u5408\u308f\u305b\u3066\u5f97\u3089\u308c\u305f\u3082\u306e\u3002CP\u5bfe\u79f0\u6027\u304c\u4fdd\u5b58\u3055\u308c\u308b\u03b4<sub>CP<\/sub>\u306e\u5024(\u03b4<sub>CP<\/sub>=0\u3068\u03b4<sub>CP<\/sub>=\u03c0)\u306f90%\u4fe1\u983c\u533a\u9593\u306e\u5916\u306b\u3042\u308b\u3002<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3067\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u78ba\u7387\u306e\u9055\u3044\u3092\u63a2\u308b T2K\u5b9f\u9a13\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u30ed\u30f3\u30c9\u30f3\u3067\u958b\u304b\u308c\u305f\u7b2c27\u56de\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u56fd\u969b\u4f1a\u8b70\uff08NEUTRINO2016\uff09\u306b\u304a\u3044\u3066\u3001\uff08\u53cd\uff09\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306b\u95a2\u3059\u308b\u65b0\u3057\u3044\u7d50\u679c\u3092\u516c\u8868\u3057\u307e\u3057\u305f\u3002\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3067\u3082\u3001\u5927\u6c17\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306b\u5bfe\u5fdc\u3059\u308b\u6df7\u5408\u89d2(\u03b823)\u306b\u3088\u308b\u6df7\u5408\u304c\u6700\u5927\u3067\u3042\u308a\u3001CP\u975e\u5bfe\u79f0\u6027\u3092\u304a\u3053\u3059\u4f4d\u76f8(\u03b4CP)\u304c\u975e\u5bfe\u79f0\u6027\u6700\u5927\u306e\u5024(-\u03c0\/2)\u306b\u8fd1\u304f\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u8cea\u91cf\u9806\u5e8f\u304c\u901a\u5e38\u9806\u5e8f\u3067\u3042\u308b\u5834\u5408\u306b\u6700\u3082\u9069\u5408\u3059\u308b\u3068\u3044\u3046\u3001\u4ee5\u524d\u306e\u7d50\u679c\u3068\u540c\u3058\u50be\u5411\u304c\u898b\u3089\u308c\u3066\u3044\u307e\u3059\u3002 \u524d\u56de\u7d50\u679c\u3092\u767a\u8868\u3057\u305f2015\u5e74\u6642\u70b9\u306b\u6bd4\u3079\u3001\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30c7\u30fc\u30bf\u91cf\u3092\u307b\u307c\u500d\u306b\u5897\u3084\u3057\u305f\u3053\u3068\u306b\u52a0\u3048\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306e\u30c7\u30fc\u30bf\u3092\u540c\u6642\u306b\u4f7f\u3046\u65b0\u305f\u306a\u624b\u6cd5\u3067\u306e\u89e3\u6790\u3092\u884c\u3044\u307e\u3057\u305f\uff08\u56f31\uff09\u3002\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u306bCP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u304c\u3042\u308c\u3070\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3068\u53cd\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u3067\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306e\u78ba\u7387\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u4e88\u60f3\u3055\u308c\u307e\u3059\u3002\u4eca\u56de\u306e\u30c7\u30fc\u30bf\u3067\u89b3\u6e2c\u3055\u308c\u305f\u53cd\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u51fa\u73fe\u306e\u4e8b\u8c61\u7387\u306f\u3001\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u51fa\u73fe\u306e\u4e8b\u8c61\u7387\u304b\u3089CP\u5bfe\u79f0\u6027\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3068\u4eee\u5b9a\u3057\u3066\u4e88\u60f3\u3057\u305f\u3082\u306e\u3088\u308a\u3082\u5c0f\u3055\u3044\u3082\u306e\u3067\u3057\u305f\u3002 \u539f\u5b50\u7089\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u5b9f\u9a13\u306b\u3088\u308b\u53cd\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u6d88\u5931\u6e2c\u5b9a\u306e\u7d50\u679c\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\uff13\u4e16\u4ee3\u306e\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u632f\u52d5\u306e\u67a0\u7d44\u307f\u3067\u89e3\u6790\u3092\u884c\u3063\u305f\u5834\u5408\u3001T2K\u306e\u73fe\u5728\u306e\u30c7\u30fc\u30bf\u91cf\u3067\u306e\u03b4CP \u306e90%\u4fe1\u983c\u533a\u9593\u306e\u5927\u304d\u3055\u306f\u3001\u771f\u306e\u03b4CP \u306e\u5024\u3068\u8cea\u91cf\u9806\u5e8f\u306b\u3088\u308a\u307e\u3059\u304c\u30012\u03c0\uff08\u3064\u307e\u308a\u53ef\u80fd\u306a\u03b4CP\u306e\u5024\u304c\u3059\u3079\u3066\u542b\u307e\u308c\u308b\uff09\u304b\u30891\u03c0\u7a0b\u5ea6\u3068\u898b\u7a4d\u3082\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u305f\u7d50\u679c\u3001\u03b4CP\u306e\u5024\u306e90%\u4fe1\u983c\u533a\u9593\u306f\u56f32\u306b\u793a\u3059\u3088\u3046\u306b\u901a\u5e38\u8cea\u91cf\u9806\u5e8f\uff08\u9006\u8cea\u91cf\u9806\u5e8f\uff09\u306b\u5bfe\u3057\u3066[\u20133.02; \u20130.49] ([\u20131.87 ; \u20130.98])\u3068\u306a\u308a\u307e\u3057\u305f\u3002CP\u5bfe\u79f0\u6027\u304c\u4fdd\u5b58\u3055\u308c\u308b\u03b4CP\u306e\u5024(\u03b4CP=0\u3068\u03b4CP=\u03c0)\u306f\u3001\u3075\u305f\u3064\u3068\u3082\u3053\u306e\u533a\u9593\u306e\u5916\u306b\u3042\u308a\u307e\u3059\u3002 \u4eca\u56de\u306e\u65b0\u3057\u3044\u7d50\u679c\u306f\u3001\u6a19\u7684\u306b\u7167\u5c04\u3055\u308c\u308b\u967d\u5b50\u6570(protons on target, POT)\u3068\u3057\u3066T2K\u5b9f\u9a13\u306b\u5bfe\u3057\u73fe\u5728\u8a8d\u3081\u3089\u308c\u3066\u3044\u308b\u91cf\u306e\u7d0420%\u306b\u3042\u305f\u308b\u30011.44\u00d71021POT\u306b\u76f8\u5f53\u3059\u308b\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u4eca\u5f8c\u3001J-PARC\u30e1\u30a4\u30f3\u30ea\u30f3\u30b0\u3068\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u30d3\u30fc\u30e0\u30e9\u30a4\u30f3\u306e\u5897\u5f37\u306b\u3088\u308a\u30d3\u30fc\u30e0\u5f37\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u30012021\u5e74\u3054\u308d\u306b\u306f\u73fe\u5728\u306e\u76ee\u6a19\u3067\u3042\u308b7.8\u00d71021 POT\u306b\u5230\u9054\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002\u3055\u3089\u306b\u3001T2K\u5b9f\u9a13\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u6b21\u4e16\u4ee3\u306e\u5b9f\u9a13\u304c\u958b\u59cb\u3055\u308c\u308b\u4e88\u5b9a\u306e2025\u5e74\u3054\u308d\u307e\u3067\u306b20\u00d71021\u00a0POT\u3092\u53ce\u96c6\u3057\u3001CP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u30923\u03c3\u306e\u611f\u5ea6\u3067\u767a\u898b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u5b9f\u9a13\u3092\u5ef6\u9577\u3059\u308b\u3053\u3068\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002 CP\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306f\u3001\u5b87\u5b99\u521d\u671f\u306e\u30d3\u30c3\u30b0\u30d0\u30f3\u306e\u969b\u306b\u306f\u7269\u8cea\u3068\u53cd\u7269\u8cea\u304c\u7b49\u91cf\u4f5c\u3089\u308c\u305f\u306f\u305a\u306a\u306e\u306b\u73fe\u5728\u306e\u5b87\u5b99\u306b\u306f\u306a\u305c\u7269\u8cea\u3057\u304b\u6b8b\u3063\u3066\u3044\u306a\u3044\u306e\u304b\u3001\u3068\u3044\u3046\u73fe\u4ee3\u306e\u79d1\u5b66\u3067\u6700\u3082\u6df1\u9060\u306a\u554f\u3044\u306e\u4e00\u3064\u306b\u5bfe\u3059\u308b\u7b54\u3048\u306e\u9375\u3092\u63e1\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u4eca\u56de\u306eT2K\u5b9f\u9a13\u306e\u65b0\u3057\u3044\u7d50\u679c\u306f\u3001\u307e\u3060\u7d71\u8a08\u7684\u306b\u6709\u610f\u3067\u306f\u306a\u3044\u3068\u306f\u3044\u3048\u3001\u6211\u3005\u306e\u5b87\u5b99\u306b\u5bfe\u3059\u308b\u7406\u89e3\u306b\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u304c\u3053\u308c\u304b\u3089\u3082\u65b0\u305f\u306a\u30d6\u30ec\u30fc\u30af\u30b9\u30eb\u30fc\u3092\u3082\u305f\u3089\u3057\u7d9a\u3051\u3066\u304f\u308c\u308b\u3053\u3068\u3092\u671f\u5f85\u3055\u305b\u307e\u3059\u3002 \u65b0\u3057\u3044T2K\u5b9f\u9a13\u306e\u7d50\u679c\u306b\u95a2\u3059\u308b\u8a73\u7d30\u3084\u4eca\u5f8c\u306e\u5b9f\u9a13\u306e\u898b\u901a\u3057\u306b\u95a2\u3057\u3066\u306f\u3001\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce2016\u56fd\u969b\u4f1a\u8b70\u3067\u306e\u767a\u8868\u8cc7\u6599\uff08\u82f1\u8a9e\uff09\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-3708","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/posts\/3708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/comments?post=3708"}],"version-history":[{"count":0,"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/posts\/3708\/revisions"}],"wp:attachment":[{"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/media?parent=3708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/categories?post=3708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t2k-experiment.org\/ja\/wp-json\/wp\/v2\/tags?post=3708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}