{"id":7331,"date":"2025-04-01T21:24:14","date_gmt":"2025-04-01T12:24:14","guid":{"rendered":"https:\/\/torisetudy.com\/?p=7331"},"modified":"2026-01-13T17:06:04","modified_gmt":"2026-01-13T08:06:04","slug":"%e5%8e%9f%e5%ad%90%e6%a0%b8%e5%8f%8d%e5%bf%9c","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=7331","title":{"rendered":"\u539f\u5b50\u6838\u53cd\u5fdc"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u539f\u5b50\u6838\u53cd\u5fdc<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u6838\u5206\u88c2<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u6838\u878d\u5408<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u539f\u5b50\u6838\u53cd\u5fdc<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7570\u306a\u308b\u6838\u306b\u5909\u5316<\/h3>\n\n\n\n<p>\u539f\u5b50\u6838\u540c\u58eb\u304c\u885d\u7a81\u3057\u305f\u308a\uff0c\u539f\u5b50\u6838\u306b $\\alpha$ \u7c92\u5b50\u3084\u967d\u5b50\u304c\u885d\u7a81\u3057\u305f\u308a\u3059\u308b\u3068\uff0c\u306f\u3058\u3081\u3068\u7570\u306a\u308b\u6838\u306b\u5909\u5316\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u53cd\u5fdc\u3092 <span class=\"st-mymarker-s\">\u539f\u5b50\u6838\u53cd\u5fdc<\/span> \u3068\u547c\u3073\u307e\u3059\u3002\u4e16\u306e\u4e2d\u3067\u6700\u521d\u306b\u767a\u898b\u3055\u308c\u305f\u539f\u5b50\u6838\u53cd\u5fdc\u306f\uff0c\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>$$\\ce{^{14}_7N + ^4_2He \\cto ^{17}_8O + ^1_1H}$$<\/p>\n\n\n\n<p>\u53cd\u5fdc\u5f0f\u304b\u3089\u3082\u308f\u304b\u308b\u901a\u308a\uff0c\u8cea\u91cf\u6570\u3068\u967d\u5b50\u6570\u306e\u548c\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u7c21\u5358\u306b\u3044\u3048\u3070\u300c\u53cd\u5fdc\u306e\u524d\u5f8c\u3067\uff0c\u5de6\u4e0a\u306e\u6570\u5b57\u306e\u548c\u3068\u53f3\u4e0b\u306e\u6570\u5b57\u306e\u548c\u304c\u305d\u308c\u305e\u308c\u7b49\u3057\u304f\u306a\u308b\uff01\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4e0a\u306e\u53cd\u5fdc\u5f0f\u3067\u306f\uff0c<\/p>\n\n\n\n<p>$$\\begin{aligned}\\stext{\u8cea\u91cf\u6570\u306e\u548c\uff1a} &amp;\\quad 14+4=17+1 \\\\\\stext{\u967d\u5b50\u6570\u306e\u548c\uff1a} &amp;\\quad 7+2=8+1\\end{aligned}$$<\/p>\n\n\n\n<p>\u304c\u305d\u308c\u305e\u308c\u6210\u7acb\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8272\u3005\u4fdd\u5b58\u3055\u308c\u308b<\/h3>\n\n\n\n<p>\u539f\u5b50\u6838\u53cd\u5fdc\u3067\u306f\u3053\u308c\u3089\u306b\u52a0\u3048\u3066\uff0c<span class=\"st-mymarker-s-b\"><span class=\"st-mymarker-s\">\u904b\u52d5\u91cf\u306e\u548c<\/span><\/span> \u3068 <span class=\"st-mymarker-s\">\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u548c<\/span> \u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u306f\uff0c\u9759\u6b62\u30a8\u30cd\u30eb\u30ae\u30fc\u3082\u542b\u3081\u305f\u30a8\u30cd\u30eb\u30ae\u30fc\u3067\u3059\u306e\u3067\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u2026\uff01<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-point-box st-point-box has-title post-hashiro-point\" style=\"\n        background-color:#fff; \n        border: 2px solid #ff7f50; \n        padding: 0px 18px; \n        border-radius: 4pt; \n        position: relative;\">\n        \n        <p class=\"st-mybox-title\" style=\"\n            position: absolute; \n            top: -12px; \n            left: 12px; \n            background-color: #fff; \n            padding: 0 10px; \n            color: #ff7f50; \n            font-weight: bold; \n            font-size: 15px; \n            line-height: 1.5; \n            text-decoration: none;\n            margin-bottom: 20px; \n            display: flex; \n            align-items: center; \n            gap: 5px;\">\n            <i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"true\"><\/i> \u539f\u5b50\u6838\u53cd\u5fdc\n        <\/p>\n\n        <div class=\"st-in-point-box\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding-top: 0px;\n            padding-bottom: 30px;\">\n            <p style=\"margin-bottom: -10px !important;\">\u53cd\u5fdc\u306e\u524d\u5f8c\u3067\uff0c\u300c\u8cea\u91cf\u6570\u306e\u548c\u300d\u300c\u967d\u5b50\u6570\u306e\u548c\u300d\u300c\u904b\u52d5\u91cf\u306e\u548c\u300d\u300c\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u548c\u300d\u304c\u4fdd\u5b58\u3055\u308c\u308b\u3002<\/p>\n        <\/div>\n    <\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u6838\u5206\u88c2<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a6\u30e9\u30f3\u3092\u4f8b\u306b<\/h3>\n\n\n\n<p>\u8cea\u91cf\u6570\u304c\u5927\u304d\u304f\uff0c\u6838\u5206\u88c2\u3092\u8d77\u3053\u3057\u3084\u3059\u3044\u539f\u5b50\u3068\u3057\u3066\uff0c$\\ce{^{235}_{92}U}$\uff08\u30a6\u30e9\u30f3\uff09\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30a6\u30e9\u30f3\u306b\u4e2d\u6027\u5b50 $\\ce{^1_0n}$ \u304c\u885d\u7a81\u3059\u308b\u3068\uff0c\u30a6\u30e9\u30f3\u306f\u6838\u5206\u88c2\u3092\u8d77\u3053\u3057\u307e\u3059\u3002\u3053\u306e\u969b\u306e\u53cd\u5fdc\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p>$$\\ce{^{235}_{92}U + ^1_0n \\cto ^{95}_{39}Y + ^{139}_{53}I + 2 ^1_0n}$$<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u53cd\u5fdc\u304c\u9023\u9396\u3059\u308b\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p>\u751f\u6210\u3055\u308c\u308b $\\ce{^{95}_{39}Y}$\uff08\u30a4\u30c3\u30c8\u30ea\u30a6\u30e0\uff09\u3084 $\\ce{^{139}_{53}I}$\uff08\u30e8\u30a6\u7d20\uff09\u306f\u91cd\u8981\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u6ce8\u76ee\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306f\uff0c<span class=\"st-mymarker-s-b\">\u53cd\u5fdc\u306b\u3088\u3063\u3066\u518d\u3073\u4e2d\u6027\u5b50 $\\ce{^1_0n}$ \u304c\u751f\u6210\u3055\u308c\u3066\u3044\u308b<\/span>\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30a6\u30e9\u30f3\u304c\u305f\u304f\u3055\u3093\u3042\u308b\u72b6\u6cc1\u3067\u306f\uff0c\u3053\u306e\u4e2d\u6027\u5b50\u304c\u518d\u3073\u5225\u306e\u30a6\u30e9\u30f3\u306b\u3076\u3064\u304b\u308b\u3053\u3068\u3067\u305d\u306e\u30a6\u30e9\u30f3\u304c\u6838\u5206\u88c2\u3057\uff0c\u305d\u3053\u3067\u307e\u305f\u4e2d\u6027\u5b50\u304c\u751f\u6210\u3055\u308c\u3066\u4ed6\u306e\u30a6\u30e9\u30f3\u306b\u3076\u3064\u304b\u308a\u2026\u3068\u3044\u3046\u53cd\u5fdc\u306e\u9023\u9396\u304c\u8d77\u3053\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u5b50\u529b\u767a\u96fb<\/h3>\n\n\n\n<p>\u3053\u306e\u9023\u9396\u53cd\u5fdc\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5229\u7528\u3059\u308b\u306e\u304c <span class=\"st-mymarker-s\">\u539f\u5b50\u529b\u767a\u96fb<\/span> \u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3088\u304f\u300c\u539f\u5b50\u529b\u767a\u96fb\u306f\u6838\u878d\u5408\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u8aa4\u9078\u629e\u80a2\u304c\u30bb\u30f3\u30bf\u30fc\u8a66\u9a13\u8868\u8a18\u3067\u51fa\u984c\u3055\u308c\u307e\u3059\u304c\uff0c\u4ed5\u7d44\u307f\u304c\u308f\u304b\u3063\u3066\u3044\u308c\u3070\u3059\u3050\u306b\u9593\u9055\u3044\u3060\u3068\u6c17\u4ed8\u3051\u307e\u3059\u306d\u2026\uff01<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u539f\u5b50\u529b\u767a\u96fb\u3067\u5229\u7528\u3057\u3066\u3044\u308b\u306e\u306f\u300c\u6838\u5206\u88c2\u300d\uff01\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u6838\u878d\u5408<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6838\u878d\u5408\u306f\u592a\u967d\u306b\u3066\uff01<\/h3>\n\n\n\n<p>\u592a\u967d\u306e\u5185\u90e8\u3067\u306f\uff0c\u6c34\u7d20\u539f\u5b50\u6838\u304c\u6838\u878d\u5408\u3057\uff0c1\u3064\u306e\u30d8\u30ea\u30a6\u30e0\u304c\u751f\u6210\u3055\u308c\u308b\u3068\u3044\u3046\u6838\u878d\u5408\u53cd\u5fdc\u304c\u8d77\u3053\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u969b\u306e\u53cd\u5fdc\u5f0f\u306f\uff0c<\/p>\n\n\n\n<p>$$\\ce{4 ^1_1H}+2\\ce{e}\\cto \\ce{^4_2He}+2\\nu_e$$<\/p>\n\n\n\n<p>\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>$\\nu_e$ \u306f\u300c\u96fb\u5b50\u30cb\u30e5\u30fc\u30c8\u30ea\u30ce\u300d\u3068\u547c\u3070\u308c\u308b\u7d20\u7c92\u5b50\u3067\u3059\u304c\uff0c\u3053\u3053\u3067\u306f\u3042\u307e\u308a\u6c17\u306b\u3057\u306a\u304f\u3066 ok \u3067\u3059\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u3053\u306e\u6838\u878d\u5408\u53cd\u5fdc\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u3067\u592a\u967d\u306f\u8f1d\u304d\u7d9a\u3051\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-midashi-box freebox has-title post-hashiro-reidai\" style=\"\n        background-color:#f7f7fb; \n        border-width: 3px; \n        border-color:#a3bded;\">\n        \n        <p class=\"p-free\" style=\"\n            border-color:#a3bded; \n            font-weight: bold;\">\n            <span class=\"p-entry-f\" style=\"\n                color:#ffffff; \n                font-weight: bold; \n                background-color:#a3bded;\">\n                <i class=\"st-fa st-svg-pencil st-css-no\" aria-hidden=\"true\"><\/i> \u4f8b\u984c\n            <\/span>\n        <\/p>\n\n        <div class=\"free-inbox\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding: 10px 15px;\">\n            <p>2\u3064\u306e\u91cd\u6c34\u7d20\uff08$\\ce{^2_1H}$\uff09\u304c\u8d77\u3053\u3059\u539f\u5b50\u6838\u53cd\u5fdc\u3068\u3057\u3066\uff0c<\/p><p>$$\\ce{^2_1H}+\\ce{^2_1H}\\cto\\ce{X}+\\ce{n}$$<\/p><p>\u304c\u77e5\u3089\u308c\u3066\u3044\u308b\u3002$\\ce{^2_1H}$\uff0c$\\ce{X}$\uff0c$\\ce{n}$ \u306e\u8cea\u91cf\u3092\u305d\u308c\u305e\u308c $2.0136\\punit{u}$\uff0c$3.0149\\punit{u}$\uff0c$1.0087\\punit{u}$ \u3068\u3057\u3066\uff0c\u4ee5\u4e0b\u306e\u8a2d\u554f\u306b\u6709\u52b9\u6570\u5b572\u6841\u3067\u7b54\u3048\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">\u751f\u6210\u3055\u308c\u308b\u539f\u5b50\u6838 $\\ce{X}$ \u306e\u8cea\u91cf\u6570\u3068\u539f\u5b50\u756a\u53f7\u3092\u305d\u308c\u305e\u308c\u7b54\u3048\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">\u3053\u306e\u539f\u5b50\u6838\u53cd\u5fdc\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u6c42\u3081\u3088\u3002\u305f\u3060\u3057\uff0c$1\\punit{u}$ \u306e\u8cea\u91cf\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u63db\u7b97\u3059\u308b\u3068 $9.31\\times10^2\\punit{MeV}$ \u306b\u76f8\u5f53\u3059\u308b\u3053\u3068\u3092\u5229\u7528\u305b\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">\u91cd\u6c34\u7d20\u306f\uff0c\u4e92\u3044\u306b\u7b49\u3057\u3044\u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc $3.25\\times10^{-1}\\punit{MeV}$ \u3092\u6301\u3063\u3066\u6b63\u9762\u885d\u7a81\u3057\u305f\u3082\u306e\u3068\u3059\u308b\u3002\u53cd\u5fdc\u5f8c\uff0c\u539f\u5b50\u6838 $\\ce{X}$ \u3068\u4e2d\u6027\u5b50\u304c\u6301\u3064\u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u305d\u308c\u305e\u308c\u6c42\u3081\u3088\u3002<\/p><\/p><p><p><\/p>\n        <\/div>\n    <\/div>\n\n\n\n<div class=\"wp-block-group post-hashiro-reidaikaitou\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u751f\u6210\u3055\u308c\u308b\u4e2d\u6027\u5b50\u306f\u8cea\u91cf\u6570\u304c $1$\uff0c\u967d\u5b50\u6570\u306f $0$ \u3068\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<p>\u53cd\u5fdc\u306e\u524d\u5f8c\u3067\u8cea\u91cf\u6570\u306e\u548c\u3068\u967d\u5b50\u6570\u306e\u548c\u304c\u4fdd\u5b58\u3055\u308c\u308b\u3053\u3068\u304b\u3089\uff0c\u539f\u5b50\u6838 $\\ce{X}$ \u306e\u8cea\u91cf\u6570\u306f $3$\uff0c\u967d\u5b50\u6570\u306f $2$ \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-memo clip-memobox has-icon-label post-hashiro-tyuu\" style=\"\n        color:#808080;\n        background-color:#f5f5f5;\">\n        \n        <div class=\"clip-fonticon\" style=\"\n            color:#919191; \n            border-color:#9191914d;\">\n            <i class=\"st-fa st-svg-exclamation-circle st-css-no\" data-icon-label=\"\u6ce8\" aria-hidden=\"true\"><\/i>\n        <\/div>\n\n        <div class=\"clip-memotext\" style=\"\n            color:#808080;\">\n            <p>\u539f\u5b50\u756a\u53f7\u304c $2$ \u3067\u3042\u308b\u5143\u7d20\u306f\u30d8\u30ea\u30a6\u30e0\u306a\u306e\u3067\uff0c$\\ce{X}$ \u306f $\\ce{^3_2He}$ \u3067\u3042\u308b\u3002<\/p>\n        <\/div>\n    <\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u53cd\u5fdc\u306b\u3088\u3063\u3066\u5931\u308f\u308c\u305f\u8cea\u91cf\u306f\uff0c<\/p>\n\n\n\n<p>$$\\varDelta m=2\\cdot 2.0136-(3.0149+1.0087)=3.6\\times10^{-3}\\punit{u}$$<\/p>\n\n\n\n<p>\u3067\u3042\u308b\u3002\u3088\u3063\u3066\uff0c\u6c42\u3081\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\uff0c<\/p>\n\n\n\n<p>$$3.6\\times10^{-3}\\times9.31\\times10^2\\fallingdotseq 3.35\\fallingdotseq 3.4\\punit{MeV}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u53cd\u5fdc\u524d\uff0c\u91cd\u6c34\u7d20\u306f\u7b49\u3057\u3044\u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u6301\u3063\u3066\u885d\u7a81\u3059\u308b\u305f\u3081\uff0c\u901f\u3055\u304a\u3088\u3073\u904b\u52d5\u91cf\u306f\u7b49\u3057\u3044\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u5927\u304d\u3055\u3092 $p_0$ \u3068\u3059\u308b\u3002\u539f\u5b50\u6838 $\\ce{X}$ \u3068\u4e2d\u6027\u5b50\u306e\u8cea\u91cf\u3092 $m_1,\\,m_2$ \u3068\u3057\uff0c\u53cd\u5fdc\u5f8c\u306e\u901f\u3055\u3092\u305d\u308c\u305e\u308c $v_1,\\,v_2$ \u3068\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u53cd\u5fdc\u306e\u69d8\u5b50\u306f\u6b21\u56f3\u306e\u901a\u308a\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"308\" height=\"100\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u74061552.svg\" alt=\"\u7269\u74061552\" class=\"wp-image-7262\"\/><noscript><img decoding=\"async\" width=\"308\" height=\"100\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u74061552.svg\" alt=\"\u7269\u74061552\" class=\"wp-image-7262\"\/><\/noscript><\/figure>\n\n\n\n<p>\u904b\u52d5\u91cf\u4fdd\u5b58\u5247\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$0=-m_1v_1+m_2v_2$$<\/p>\n\n\n\n<p>\u304c\uff0c\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$2\\times3.25\\times10^{-1}+3.35=\\bun12m_1v_1\\!^2+\\bun12m_2v_2\\!^2$$<\/p>\n\n\n\n<p>\u304c\u305d\u308c\u305e\u308c\u6210\u7acb\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\uff0c$m_1:m_2\\fallingdotseq 3:1$ \u306a\u306e\u3067\uff0c\u904b\u52d5\u91cf\u4fdd\u5b58\u5247\u304b\u3089 $v_1:v_2=1:3$ \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002\u3088\u3063\u3066\uff0c<\/p>\n\n\n\n<p>$$4.00=\\bun12m_1v_1\\!^2+\\bun12m_2v_2\\!^2,\\quad \\bun12m_1v_1\\!^2:\\bun12m_2v_2\\!^2=1:3$$<\/p>\n\n\n\n<p>\u304c\u305d\u308c\u305e\u308c\u6210\u7acb\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002\u3057\u305f\u304c\u3063\u3066\uff0c<\/p>\n\n\n\n<p>$$\\bun12m_1v_1^2=1.0\\punit{MeV},\\quad \\bun12m_2v_2^2=3.0\\punit{MeV}$$<\/p>\n<\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b211 \u539f\u5b50\u6838\u53cd\u5fdc2 \u6838\u5206\u88c23 \u6838\u878d\u5408 \u539f\u5b50\u6838\u53cd\u5fdc \u7570\u306a\u308b\u6838\u306b\u5909\u5316 \u539f\u5b50\u6838\u540c\u58eb\u304c\u885d\u7a81\u3057\u305f\u308a\uff0c\u539f\u5b50\u6838\u306b $\\alpha$ \u7c92\u5b50\u3084\u967d\u5b50\u304c\u885d\u7a81\u3057\u305f\u308a\u3059\u308b\u3068\uff0c\u306f\u3058\u3081\u3068\u7570\u306a\u308b\u6838\u306b\u5909\u5316\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 \u3053\u306e\u53cd &#8230; <\/p>\n","protected":false},"author":1,"featured_media":7278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,39],"tags":[],"class_list":["post-7331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nuclear_physics","category-39"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/7331"}],"collection":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7331"}],"version-history":[{"count":13,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/7331\/revisions"}],"predecessor-version":[{"id":7718,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/7331\/revisions\/7718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/media\/7278"}],"wp:attachment":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}