{"id":7824,"date":"2017-11-13T01:02:48","date_gmt":"2017-11-12T18:02:48","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7824"},"modified":"2017-12-04T01:03:46","modified_gmt":"2017-12-03T18:03:46","slug":"ly-giai-moi-ve-nguon-goc-cua-vat-chat-toi","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/ly-giai-moi-ve-nguon-goc-cua-vat-chat-toi\/","title":{"rendered":"L\u00fd gi\u1ea3i m\u1edbi v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i"},"content":{"rendered":"

\"alt\"<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c \u0111\u1ec1 xu\u1ea5t l\u00fd thuy\u1ebft m\u1edbi gi\u1ea3i th\u00edch s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i sau khi v\u0169 tr\u1ee5 \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Johannes Gutenberg Mainz (JGU), \u0110\u1ee9c, \u0111\u1ec1 xu\u1ea5t m\u1ed9t l\u00fd thuy\u1ebft m\u1edbi v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i ngay sau khi v\u0169 tr\u1ee5 ra \u0111\u1eddi. M\u00f4 h\u00ecnh n\u00e0y thay th\u1ebf cho m\u00f4 h\u00ecnh h\u1ea1t n\u1eb7ng t\u01b0\u01a1ng t\u00e1c y\u1ebfu (WIMP), \u1ee9ng c\u1eed vi\u00ean t\u1ed1t nh\u1ea5t cho v\u1eadt ch\u1ea5t t\u1ed1i, l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a nhi\u1ec1u nghi\u00ean c\u1ee9u kh\u00e1c nhau hi\u1ec7n nay.<\/p>\n

V\u1eadt ch\u1ea5t t\u1ed1i v\u00f4 h\u00ecnh chi\u1ebfm kho\u1ea3ng 23% v\u0169 tr\u1ee5. V\u1eadt ch\u1ea5t nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c tham gia c\u1ea5u t\u1ea1o n\u00ean nh\u1eefng ng\u00f4i sao, c\u00e1c h\u00e0nh tinh v\u00e0 th\u1eadm ch\u00ed c\u1ea3 s\u1ef1 s\u1ed1ng tr\u00ean Tr\u00e1i \u0111\u1ea5t ch\u1ec9 chi\u1ebfm kho\u1ea3ng 4%. Ph\u1ea7n c\u00f2n l\u1ea1i l\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u1ed1i. Gi\u1ea3 thuy\u1ebft \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i hi\u1ec7n nay cho r\u1eb1ng v\u1eadt ch\u1ea5t t\u1ed1i l\u00e0 t\u00e0n t\u00edch c\u1ee7a v\u0169 tr\u1ee5, mang t\u00ednh \u1ed5n \u0111\u1ecbnh k\u1ec3 t\u1eeb khi h\u00ecnh th\u00e0nh sau v\u1ee5 n\u1ed5 Big Bang.<\/p>\n

Ch\u00fang t\u00f4i xem x\u00e9t l\u1ea1i gi\u1ea3 thuy\u1ebft tr\u00ean v\u00e0 th\u1ea5y r\u1eb1ng v\u1eadt ch\u1ea5t t\u1ed1i c\u00f3 th\u1ec3 \u0111\u00e3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0o th\u1eddi \u0111i\u1ec3m ban \u0111\u1ea7u c\u1ee7a v\u0169 tr\u1ee5, Michael Baker, th\u00e0nh vi\u00ean c\u1ee7a nh\u00f3m nghi\u00ean c\u1ee9u l\u00e0m vi\u1ec7c trong Nh\u00f3m V\u1eadt l\u00fd L\u00fd thuy\u1ebft N\u0103ng l\u01b0\u1ee3ng Cao (THEP) t\u1ea1i JGU, cho bi\u1ebft.<\/p>\n

S\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch b\u1eb1ng nguy\u00ean l\u00fd \u0111\u1ed1i x\u1ee9ng. Nh\u01b0ng trong b\u00e0i b\u00e1o, Michael Baker v\u00e0 c\u1ed9ng s\u1ef1 Joachim Kopp ch\u1ee9ng minh r\u1eb1ng v\u0169 tr\u1ee5 t\u1eebng tr\u1ea3i qua m\u1ed9t giai \u0111o\u1ea1n m\u00e0 t\u00ednh \u0111\u1ed1i x\u1ee9ng b\u1ecb ph\u00e1 v\u1ee1. \u0110i\u1ec1u n\u00e0y ngh\u0129a l\u00e0 h\u1ea1t v\u1eadt ch\u1ea5t t\u1ed1i c\u00f3 kh\u1ea3 n\u0103ng b\u1ecb ph\u00e2n r\u00e3. Trong su\u1ed1t qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i pha \u0111i\u1ec7n y\u1ebfu (electroweak phase), t\u00ednh \u0111\u1ed1i x\u1ee9ng l\u00e0m \u1ed5n \u0111\u1ecbnh v\u1eadt ch\u1ea5t t\u1ed1i s\u1ebd t\u00e1i thi\u1ebft l\u1eadp, cho ph\u00e9p n\u00f3 ti\u1ebfp t\u1ee5c t\u1ed3n t\u1ea1i trong v\u0169 tr\u1ee5 \u0111\u1ebfn ng\u00e0y nay.<\/p>\n

T\u00ednh \u0111\u1ebfn nay, WIMPs (c\u00e1c h\u1ea1t l\u1edbn t\u01b0\u01a1ng t\u00e1c y\u1ebfu) \u0111\u01b0\u1ee3c coi l\u00e0 \u1ee9ng c\u1eed vi\u00ean t\u1ed1t nh\u1ea5t cho th\u00e0nh ph\u1ea7n c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i. C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc London (UCL), Anh, t\u1eebng thi\u1ebft l\u1eadp M\u00e1y d\u00f2 Xenon L\u1edbn D\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t (LUX) \u0111\u1ec3 ph\u00e1t hi\u1ec7n d\u1ea5u v\u1ebft c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i nh\u01b0ng ch\u01b0a th\u00e0nh c\u00f4ng.<\/p>\n

Nh\u00f3m nghi\u00ean c\u1ee9u cho r\u1eb1ng, l\u00fd thuy\u1ebft h\u1ecd m\u1edbi \u0111\u1ec1 xu\u1ea5t c\u00f3 m\u1ed1i li\u00ean h\u1ec7 v\u1edbi s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng gi\u1eefa v\u1eadt ch\u1ea5t v\u00e0 ph\u1ea3n v\u1eadt ch\u1ea5t trong v\u0169 tr\u1ee5. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn trong c\u00e1c th\u00ed nghi\u1ec7m t\u01b0\u01a1ng lai v\u1ec1 s\u00f3ng h\u1ea5p d\u1eabn.<\/p>\n

(Vnexpress)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c \u0111\u1ec1 xu\u1ea5t l\u00fd thuy\u1ebft m\u1edbi gi\u1ea3i th\u00edch s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i sau khi v\u0169 tr\u1ee5 \u0111\u01b0\u1ee3c t\u1ea1o ra. C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Johannes Gutenberg Mainz (JGU), \u0110\u1ee9c, \u0111\u1ec1 xu\u1ea5t m\u1ed9t l\u00fd thuy\u1ebft m\u1edbi v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i ngay sau khi […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7824","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7824"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7824\/revisions"}],"predecessor-version":[{"id":7825,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7824\/revisions\/7825"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}