{"id":22105,"date":"2015-08-17T00:53:10","date_gmt":"2015-08-16T16:53:10","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=22105"},"modified":"2018-08-01T16:00:56","modified_gmt":"2018-08-01T08:00:56","slug":"%e3%80%90%e7%89%a9%e7%90%86%e6%96%b0%e7%9f%a5%e3%80%91%e7%99%bc%e7%8f%be%e4%ba%94%e5%a4%b8%e5%85%8b%e7%b2%92%e5%ad%90","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=22105","title":{"rendered":"\u3010\u7269\u7406\u65b0\u77e5\u3011\u767c\u73fe\u4e94\u5938\u514b\u7c92\u5b50"},"content":{"rendered":"

\u25a0\u745e\u58eb\u5927\u5f37\u5b50\u5c0d\u649e\u6a5f(LHC)\u7684LHCb\u5be6\u9a57\u65e5\u524d\u767c\u8868\u4e86\u4e00\u9805\u7279\u5225\u7684\u7d50\u679c\uff1a\u4ed6\u5011\u770b\u5230\u4e86\u7531\u4e94\u500b\u5938\u514b\u6240\u7d44\u6210\u7684\u7c92\u5b50\u3002<\/strong><\/span><\/p>\n

\"CERN
\u4e94\u500b\u5938\u514b\u6240\u7d44\u6210\u7684\u7c92\u5b50\uff08CERN \/ LHCb Collaboration\uff09<\/figcaption><\/figure>\n

\u64b0\u6587\uff5c<\/strong>\u9673\u52c1\u8c6a<\/p>\n

\u5728\u9ad8\u80fd\u7269\u7406\u7684\u4e16\u754c\u4e2d\uff0c\u6240\u6709\u7684\u7269\u8cea\u90fd\u662f\u7531\u5938\u514b(quark)\u6240\u7d44\u6210\u3002\u6839\u64da\u76ee\u524d\u7684\u6a19\u6e96\u6a21\u578b\uff0c\u5938\u514b\u6709\u4e09\u4ee3\uff0c\u6bcf\u4ee3\u6709\u5169\u7a2e\u5938\u514b\uff0c\u6240\u4ee5\u4e00\u5171\u6709\u516d\u7a2e\u5938\u514b\u3002\u7576\u5938\u514b\u56e0\u70ba\u5f37\u4f5c\u7528\u529b\u800c\u7d50\u5408\uff0c\u4fbf\u6703\u5f62\u6210\u5f37\u5b50(hadron)\u3002\u5169\u500b\u5938\u514b\u6703\u5f62\u6210\u4ecb\u5b50(meson)\uff0c\u4e09\u500b\u5938\u514b\u5247\u6703\u5f62\u6210\u91cd\u5b50(baryon)\u3002\u76ee\u524d\u7d44\u6210\u842c\u7269\u7684\u8cea\u5b50\u8ddf\u4e2d\u5b50\u90fd\u662f\u91cd\u5b50\u7684\u4e00\u7a2e\uff0c\u4e5f\u5c31\u662f\u5404\u5e36\u6709\u4e09\u500b\u5938\u514b\u3002\u8cea\u5b50\u662f\u7531\u5169\u500b\u4e0a\u5938\u514b\u8ddf\u4e00\u500b\u4e0b\u5938\u514b\u6240\u7d44\u6210\uff0c\u800c\u4e2d\u5b50\u5247\u662f\u4e00\u500b\u4e0a\u5938\u514b\u8ddf\u5169\u500b\u4e0b\u5938\u514b\u6240\u7d44\u6210\u3002\u81f3\u65bc\u55ae\u4e00\u5938\u514b\u57fa\u672c\u4e0a\u6c92\u6709\u8fa6\u6cd5\u7368\u7acb\u5b58\u5728\uff0c\u53ea\u6709\u8cea\u91cf\u6700\u91cd\u7684\u9802\u5938\u514b\u80fd\u5920\u5728\u5f88\u77ed\u66ab\u7684\u6642\u9593\u5167\u7368\u81ea\u5b58\u5728\u3002<\/p>\n

\u7269\u7406\u5b78\u5bb6\u8a8d\u70ba\u5938\u514b\u90fd\u662f\u4ee5\u5169\u5169\u6210\u5c0d\u6216\u662f\u4e09\u500b\u4e00\u7d44\u7684\u65b9\u5f0f\u4ee5\u4ecb\u5b50\u6216\u662f\u91cd\u5b50\u7684\u5f62\u5f0f\u5b58\u5728\uff0c\u4f46\u662f\u7269\u7406\u5b78\u5bb6\u59cb\u7d42\u597d\u5947\u662f\u5426\u53ef\u4ee5\u4ee5\u56db\u500b\u5938\u514b\u6216\u662f\u4e94\u500b\u5938\u514b\u7684\u5f62\u5f0f\u7d44\u6210\u65b0\u7c92\u5b50\u3002\u5728\u56db\u5938\u514b\u7c92\u5b50\u7684\u90e8\u4efd\uff0c\u7269\u7406\u5b78\u5bb6\u7684\u78ba\u89c0\u5bdf\u5230\u597d\u5e7e\u7d44\u53ef\u80fd\u7684\u4e8b\u4ef6\u3002\u4f46\u662f\u5728\u4e94\u5938\u514b\u7684\u90e8\u4efd\uff0c\u4e8b\u60c5\u5c31\u6c92\u6709\u90a3\u9ebc\u7c21\u55ae\u3002<\/p>\n

\u8981\u5f62\u6210\u4e94\u5938\u514b\u7c92\u5b50\uff0c\u7c21\u55ae\u7684\u60f3\u6cd5\u5c31\u662f\u60f3\u50cf\u4e00\u500b\u7531\u5f37\u5b50\uff08\u4e09\u500b\u5938\u514b\uff09\u8ddf\u4ecb\u5b50\uff08\u5169\u500b\u5938\u514b\uff09\u6240\u7d50\u5408\u7522\u751f\u7684\u7c92\u5b50\uff0c\u6216\u662f\u4e94\u500b\u5938\u514b\u7dca\u7dca\u7684\u7d50\u5408\u5728\u4e00\u8d77\u3002\u5f9e2004\u5e74\u958b\u59cb\uff0c\u5e7e\u500b\u9ad8\u80fd\u5be6\u9a57\u9678\u7e8c\u767c\u8868\u4e86\u4e94\u5938\u514b\u7c92\u5b50\u7684\u8de1\u8c61\uff0c\u4f46\u662f\u537b\u4e00\u76f4\u6c92\u6709\u8fa6\u6cd5\u91cd\u8907\u9a57\u8b49\uff0c\u6240\u4ee5\u5230\u4e862008\u5de6\u53f3\uff0c\u4e00\u822c\u666e\u904d\u8a8d\u70ba\u5be6\u9a57\u6c92\u6709\u8db3\u5920\u8b49\u64da\u8b49\u660e\u4e94\u5938\u514b\u7c92\u5b50\u5b58\u5728\u3002<\/p>\n

\u5230\u4e862015\u5e74\uff0cLHCb\u5be6\u9a57\u7684\u65b0\u7d50\u679c\u53c8\u9ede\u8d77\u4e86\u5927\u5bb6\u5c0d\u4e94\u5938\u514b\u7c92\u5b50\u7684\u8208\u8da3\u3002\u76f8\u5c0d\u65bcLHC\u7684\u5169\u5927\u5be6\u9a57\uff1aATLAS\u8ddfCMS\uff0cLHCb\u5c08\u6ce8\u65bc\u7814\u7a76\u5e95\u5938\u514b(bottom quark)\u76f8\u95dc\u7684\u7269\u7406\uff0c\u7c21\u55ae\u7684\u8aaa\u5c31\u662f\u7531\u5e95\u5938\u514b\u6240\u7d44\u6210\u7684\u4ecb\u5b50\u8ddf\u91cd\u5b50\u7684\u5404\u7a2e\u8870\u8b8a\u6a21\u5f0f\u3002LHCb\u7684\u7814\u7a76\u4eba\u54e1\u900f\u904e\u7814\u7a76\u4e00\u500b\u53eb\u505alambda b\u7684\u91cd\u5b50\u7684\u8870\u8b8a\u6a21\u5f0f\uff0c\u767c\u73fe\u9019\u500blambda b\u6703\u8870\u8b8a\u6210\u4e00\u500bJ\/psi\u4ecb\u5b50\uff0c\u4e00\u500b\u8cea\u5b50\uff0c\u9084\u6709\u4e00\u500b\u5e36\u96fb\u7684K\u4ecb\u5b50\u3002\u5982\u679c\u5206\u6790\u9019\u500b\u8870\u8b8a\u6a21\u5f0f\u7684J\/psi\u8ddf\u8cea\u5b50\u6240\u5f62\u6210\u7684\u8cea\u91cf\u8b5c\u7dda\uff0c\u6703\u767c\u73fe\u5169\u500b\u65b0\u7684\u4e2d\u9593\u614b\uff0c\u8cea\u91cf\u5206\u5225\u662f4.450GeV\u8ddf4.380GeV\uff0c\u6216\u662f\u7d04\u70ba\u8cea\u5b50\u76844.74\u8ddf4.67\u500d\u3002\u9019\u6697\u793a\u9019\u500b\u65b0\u7684\u4e94\u5938\u514b\u7c92\u5b50\u7684\u7d44\u6210\u53ef\u80fd\u662f\u7531\u5169\u500b\u4e0a\u5938\u514b\uff0c\u4e00\u500b\u4e0b\u5938\u514b\uff0c\u9084\u6709\u4e00\u5c0d\u6b63\u53cd\u9b45\u5938\u514b(charm quark)\u6240\u7d44\u6210\u3002<\/p>\n

\u76f8\u5c0d\u65bc2000\u5e74\u4e2d\u671f\u6240\u767c\u73fe\u7684\u4e94\u5938\u514b\u7c92\u5b50\uff0c\u9019\u6b21LHCb\u767c\u73fe\u7684\u4e94\u5938\u514b\u7c92\u5b50\u66f4\u91cd\uff0c\u6240\u4ee5\u53ef\u80fd\u8868\u793a\u9019\u500b\u4e94\u5938\u514b\u7c92\u5b50\u9593\u7684\u675f\u7e1b\u80fd\u91cf\u66f4\u5f37\u3002\u81f3\u65bc\u9019\u500b\u4e94\u5938\u514b\u7c92\u5b50\u7684\u5176\u4ed6\u6027\u8cea\uff0c\u5c07\u6709\u5f85LHC\u65b0\u4e00\u8f2a\u7684\u5be6\u9a57\u4f86\u7e7c\u7e8c\u7814\u7a76\u3002<\/p>\n

\u539f\u59cb\u8ad6\u6587<\/strong>
\nObservation of $J\/\u03c8p$ resonances consistent with pentaquark states in ${\u039b_b^0\\to J\/\u03c8K^-p}$ decays<\/a><\/p>\n

\u53c3\u8003\u8cc7\u6599<\/strong>
\n1. CERN 2015\/07\/14: CERN\u2019s LHCb experiment reports observation of exotic pentaquark particles
\n<\/a>2. Nature 2015\/07\/14: Forsaken pentaquark particle spotted at CERN<\/a><\/p>\n

--<\/strong><\/span>
\u4f5c\u8005\uff1a\u9673\u52c1\u8c6a\u3000\u79d1\u6559\u4e2d\u5fc3\u7279\u7d04\u5beb\u624b\uff0c\u5f9e\u4e8b\u79d1\u666e\u6587\u7ae0\u5beb\u4f5c\u30022011\u5e74\u65bc\u7f8e\u570b\u7d10\u7d04\u5dde\u7acb\u77f3\u6eaa\u5927\u5b78(SUNY at Stony Brook)\u53d6\u5f97\u535a\u58eb\u5b78\u4f4d\uff0c\u7814\u7a76\u4e3b\u984c\u70ba\u76f8\u5c0d\u8ad6\u6027\u91cd\u96e2\u5b50\u78b0\u649e(Relativistic Heavy Ion Collision)\u3002\u9577\u671f\u64d4\u4efb\u4e2d\u6587\u79d1\u5b78\u65b0\u805e\u7db2\u7ad9\u300c\u79d1\u666f\u300d(Sciscape.org)\u7e3d\u7de8\u8f2f\u3002<\/strong><\/span><\/p>\n

 <\/p>\n

\"\u52a0\u5165\u597d\u53cb\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u25a0\u745e\u58eb\u5927\u5f37\u5b50\u5c0d\u649e\u6a5f(LHC)\u7684LHCb\u5be6<\/p>\n","protected":false},"author":20,"featured_media":22107,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3293,39],"tags":[2047,1576,2045,1535,2046],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2015\/08\/pentaquark.png","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/22105"}],"collection":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22105"}],"version-history":[{"count":7,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/22105\/revisions"}],"predecessor-version":[{"id":32309,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/22105\/revisions\/32309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/media\/22107"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}