{"id":20113,"date":"2020-07-03T05:38:36","date_gmt":"2020-07-03T05:38:36","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/que-es-el-antineutrino-definicion\/"},"modified":"2021-07-06T18:45:51","modified_gmt":"2021-07-06T18:45:51","slug":"que-es-el-antineutrino-definicion","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/es\/que-es-el-antineutrino-definicion\/","title":{"rendered":"\u00bfQu\u00e9 es el antineutrino? &#8211; Definici\u00f3n"},"content":{"rendered":"<p><span><div class=\"su-quote su-quote-style-default\"><div class=\"su-quote-inner su-u-clearfix su-u-trim\"><\/div><\/div> Los antineutrinos son las antipart\u00edculas de los neutrinos.\u00a0El antineutrino es una part\u00edcula subat\u00f3mica elemental con masa infinitesimal y sin carga el\u00e9ctrica.\u00a0Dosimetr\u00eda de radiaci\u00f3n [\/ su_quote]<\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span>Los <\/span><strong><span>antineutrinos<\/span><\/strong><span>\u00a0son las antipart\u00edculas de los\u00a0<\/span><a title=\"Neutrino\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutrino\/\"><span>neutrinos<\/span><\/a><span>\u00a0.\u00a0El antineutrino es una\u00a0<\/span><a title=\"Part\u00edculas fundamentales\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/\"><span>part\u00edcula subat\u00f3mica elemental<\/span><\/a><span>\u00a0con masa infinitesimal (menos de 0.3eV ..?) Y sin carga el\u00e9ctrica.\u00a0Los neutrinos y antineutrinos pertenecen a la familia de los\u00a0<\/span><strong><span>leptones<\/span><\/strong><span>\u00a0, lo que significa que no interact\u00faan a trav\u00e9s de una fuerza nuclear fuerte.\u00a0Los neutrinos son\u00a0part\u00edculas subat\u00f3micas\u00a0gravitacionales y de\u00a0<\/span><strong><span>interacci\u00f3n d\u00e9bil<\/span><\/strong><span>\u00a0con \u00bd unidad de giro.\u00a0Tambi\u00e9n los antineutrinos (como los neutrinos) son part\u00edculas subat\u00f3micas muy penetrantes, capaces de atravesar la Tierra sin ninguna interacci\u00f3n.\u00a0Actualmente (2015), no est\u00e1 resuelto, si el neutrino y su antipart\u00edcula no son part\u00edculas id\u00e9nticas.<\/span><\/p>\n<p><span>Los antineutrinos se producen en la\u00a0<\/span><strong><span>desintegraci\u00f3n beta negativa<\/span><\/strong><span>\u00a0.\u00a0En un\u00a0<\/span><a title=\"Reactor nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-reactor\/\"><span>reactor nuclear<\/span><\/a><span>\u00a0ocurre especialmente la \u03b2\u00a0<\/span><sup><span>-<\/span><\/sup><span>\u00a0decaimiento, porque la caracter\u00edstica com\u00fan de los\u00a0<\/span><a title=\"Fragmentos de fisi\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/fission\/fission-fragments\/\"><span>productos de fisi\u00f3n<\/span><\/a><span>\u00a0es un exceso de neutrones (v\u00e9ase\u00a0<\/span><a title=\"Estabilidad nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/nuclear-stability\/\"><span>Nuclear Estabilidad<\/span><\/a><span>\u00a0).\u00a0Un fragmento de fisi\u00f3n inestable con el exceso de\u00a0<\/span><a title=\"Neutr\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutron\/\"><span>neutrones<\/span><\/a><span>\u00a0sufre beta\u00a0<\/span><sup><span>-<\/span><\/sup><span>\u00a0descomposici\u00f3n, donde el neutr\u00f3n se convierte en un prot\u00f3n, un electr\u00f3n y un\u00a0<\/span><strong><span>electr\u00f3n antineutrino<\/span><\/strong><span>\u00a0.\u00a0Por lo tanto, cada reactor nuclear es una fuente muy poderosa de antineutrinos y los investigadores de todo el mundo investigan las posibilidades de utilizar antineutrinos para la monitorizaci\u00f3n de reactores.<\/span><\/p>\n<p><span>Por otro lado, la fuente m\u00e1s poderosa de\u00a0<\/span><strong><span>neutrinos<\/span><\/strong><span>\u00a0en el sistema solar es sin duda el mismo Sol.\u00a0Miles de millones de\u00a0<\/span><strong><span>neutrinos solares<\/span><\/strong><span>\u00a0por segundo pasan (la mayor\u00eda sin interacci\u00f3n) a trav\u00e9s de cada cent\u00edmetro cuadrado (~ 6 x 10\u00a0<\/span><sup><span>10<\/span><\/sup><span>\u00a0cm\u00a0<\/span><sup><span>-2<\/span><\/sup><span>\u00a0s\u00a0<\/span><sup><span>-1<\/span><\/sup><span>\u00a0) en la superficie de la Tierra.\u00a0En el Sol, los neutrinos se producen despu\u00e9s de la reacci\u00f3n de fusi\u00f3n de dos protones durante\u00a0<\/span><strong><span>la desintegraci\u00f3n beta positiva<\/span><\/strong><span>\u00a0del n\u00facleo de helio-2.<\/span><\/p>\n<p><img class=\"mathtex-equation-editor aligncenter\" src=\"http:\/\/chart.apis.google.com\/chart?cht=tx&amp;chl=_%7B2%7D%5E%7B2%7D%5Ctextrm%7BHe%7D%5Crightarrow%20_%7B1%7D%5E%7B2%7D%5Ctextrm%7BH%7D%20%2B%20%5Cbeta%5E%7B%2B%7D%20%2B%20%5Cnu_%7B%7Be%7D%7D\" alt=\"_ {2} ^ {2} textrm {He} flecha derecha _ {1} ^ {2} textrm {H} + beta ^ {+} + nu _ {{e}}\" align=\"absmiddle\" \/><\/p>\n<h2><span>Detecci\u00f3n de antineutrinos<\/span><\/h2>\n<p><span>Dado que los neutrinos\u00a0<\/span><strong><span>no ionizan la<\/span><\/strong><span>\u00a0\u00a0materia, no pueden detectarse directamente.\u00a0La detecci\u00f3n de antineutrinos\u00a0<\/span><strong><span>(Premio Nobel de 1995 por Frederick Reines y Clyde Cowan)<\/span><\/strong><span>\u00a0se basa en la reacci\u00f3n:<\/span><\/p>\n<p><img loading=\"lazy\" class=\"irc_mi aligncenter\" src=\"http:\/\/upload.wikimedia.org\/math\/1\/6\/a\/16a8d3a73f613c742bc6ce50a413363c.png\" alt=\"\" width=\"138\" height=\"22\" \/><\/p>\n<p><span>Esta interacci\u00f3n es sim\u00e9trica a la desintegraci\u00f3n beta del\u00a0<\/span><a title=\"Neutr\u00f3n libre\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutron\/free-neutron\/\"><span>neutr\u00f3n libre<\/span><\/a><span>\u00a0, por lo que a veces se la denomina\u00a0<\/span><strong><span>desintegraci\u00f3n beta inversa<\/span><\/strong><span>\u00a0.\u00a0Todos los m\u00e9todos de detecci\u00f3n requieren que los neutrinos transporten un\u00a0<\/span><strong><span>umbral<\/span><\/strong><span>\u00a0m\u00ednimo de\u00a0<strong>energ\u00eda de 1,8 MeV<\/strong>\u00a0.\u00a0Solo los antineutrinos con una energ\u00eda por encima del umbral de 1.8 MeV pueden causar interacciones con los protones en el agua, produciendo\u00a0<\/span><a title=\"Aniquilaci\u00f3n de positrones\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/beta-particle\/positron-annihilation-2\/\"><span>positrones<\/span><\/a><span>\u00a0y\u00a0<\/span><a title=\"Neutr\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutron\/\"><span>neutrones<\/span><\/a><span>\u00a0.<\/span><\/p>\n<h2><span>Reactor nuclear como fuente de antineutrinos<\/span><\/h2>\n<p><a title=\"Reactor nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-reactor\/\"><span>Los reactores nucleares<\/span><\/a><span>\u00a0son la principal fuente de antineutrinos generados por el hombre.\u00a0Esto se debe al hecho de que los antineutrinos se producen en una\u00a0desintegraci\u00f3n\u00a0<\/span><a title=\"Part\u00edcula Beta\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/beta-particle\/\"><span>beta<\/span><\/a><span>\u00a0negativa\u00a0.\u00a0En un reactor nuclear ocurre especialmente la \u03b2\u00a0<\/span><sup><span>-<\/span><\/sup><span>\u00a0decaimiento, porque la caracter\u00edstica com\u00fan de los\u00a0<\/span><a title=\"Fragmentos de fisi\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/fission\/fission-fragments\/\"><span>fragmentos de fisi\u00f3n<\/span><\/a><span>\u00a0es un exceso de\u00a0<\/span><a title=\"Neutr\u00f3n\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/neutron\/\"><span>neutrones<\/span><\/a><span>\u00a0(v\u00e9ase\u00a0<\/span><a title=\"Estabilidad nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/nuclear-stability\/\"><span>Nuclear Estabilidad<\/span><\/a><span>\u00a0).\u00a0Un fragmento de fisi\u00f3n inestable con el exceso de neutrones sufre beta\u00a0<\/span><sup><span>-<\/span><\/sup><span>\u00a0descomposici\u00f3n, donde el neutr\u00f3n se convierte en un prot\u00f3n, un electr\u00f3n y un\u00a0<\/span><strong><span>electr\u00f3n antineutrino<\/span><\/strong><span>\u00a0.\u00a0La existencia de emisi\u00f3n de antineutrinos y su\u00a0<\/span><strong><span>muy baja secci\u00f3n transversal<\/span><\/strong><span>\u00a0para cualquier interacci\u00f3n conduce a un fen\u00f3meno muy interesante.\u00a0Aproximadamente<\/span><strong><span>aproximadamente el 5%<\/span><\/strong><span>\u00a0(o aproximadamente 12 MeV de 207 MeV) de la energ\u00eda liberada por una\u00a0<\/span><a title=\"Fisi\u00f3n nuclear\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/fission\/\"><span>fisi\u00f3n<\/span><\/a><span>\u00a0se\u00a0<\/span><strong><span>irradia<\/span><\/strong><span>\u00a0desde el reactor en forma de antineutrinos.\u00a0Para un reactor nuclear t\u00edpico con una potencia t\u00e9rmica de 3000 MW\u00a0<\/span><sub><span>th<\/span><\/sub><span>\u00a0(~ 1000 MW\u00a0<\/span><sub><span>e<\/span><\/sub><span>\u00a0de potencia el\u00e9ctrica), la potencia total producida es de hecho mayor, aproximadamente 3150 MW, de los cuales 150 MW se irradian al espacio como radiaci\u00f3n antineutrino.\u00a0Esta cantidad de energ\u00eda se pierde para siempre, ya que los antineutrinos pueden penetrar todos los materiales del reactor sin ninguna interacci\u00f3n.\u00a0De hecho, una afirmaci\u00f3n com\u00fan en los textos de f\u00edsica es que el camino libre medio de un neutrino es aproximadamente un a\u00f1o\u00a0<\/span><strong><span>luz de plomo.<\/span><\/strong><span>.\u00a0Adem\u00e1s, un neutrino de energ\u00eda moderada puede penetrar f\u00e1cilmente mil a\u00f1os luz de plomo (seg\u00fan\u00a0<\/span><em><span>JB Griffiths<\/span><\/em><span>\u00a0).<\/span><\/p>\n<p><span>Tenga en cuenta que miles de millones de neutrinos solares por segundo\u00a0<\/span><strong><span>pasan<\/span><\/strong><span>\u00a0(en su mayor\u00eda sin ninguna interacci\u00f3n) a trav\u00e9s de cada cent\u00edmetro cuadrado (~ 6x10\u00a0<\/span><sup><span>10<\/span><\/sup><span>\u00a0) en la superficie de la Tierra y la radiaci\u00f3n de antineutrinos no es de ninguna manera peligrosa.<\/span><\/p>\n<h2><span>Ejemplo: cantidad de antineutrinos producidos:<\/span><\/h2>\n<p><strong><span>Los n\u00facleos estables<\/span><\/strong><span>\u00a0con el n\u00famero de masa A m\u00e1s probable de la\u00a0fisi\u00f3n\u00a0del\u00a0<\/span><strong><span>U-235<\/span><\/strong><span>\u00a0son\u00a0<\/span><img class=\"mathtex-equation-editor\" src=\"http:\/\/chart.apis.google.com\/chart?cht=tx&amp;chl=_%7B40%7D%5E%7B94%7D%5Ctextrm%7BZr%7D\" alt=\"_ {40} ^ {94} textrm {Zr}\" align=\"absmiddle\" \/><span>\u00a0y\u00a0<\/span><img class=\"mathtex-equation-editor\" src=\"http:\/\/chart.apis.google.com\/chart?cht=tx&amp;chl=_%7B58%7D%5E%7B140%7D%5Ctextrm%7BCe%7D\" alt=\"_ {58} ^ {140} textrm {Ce}\" align=\"absmiddle\" \/><span>.\u00a0Estos n\u00facleos tienen juntos\u00a0<\/span><strong><span>98 protones<\/span><\/strong><span>\u00a0y\u00a0<\/span><strong><span>136 neutrones<\/span><\/strong><span>\u00a0, mientras que\u00a0<\/span><strong><span>los fragmentos de fisi\u00f3n<\/span><\/strong><span>\u00a0(\u00a0<\/span><strong><span>n\u00facleos parentales<\/span><\/strong><span>\u00a0) tienen juntos\u00a0<\/span><strong><span>92 protones<\/span><\/strong><span>\u00a0y\u00a0<\/span><strong><span>142 neutrones<\/span><\/strong><span>\u00a0.\u00a0Esto significa que despu\u00e9s de cada fisi\u00f3n de U-235, los fragmentos de fisi\u00f3n deben sufrir\u00a0<\/span><strong><span>un promedio de 6 desintegraciones beta negativas<\/span><\/strong><span>\u00a0(\u00a0<\/span><strong><span>6 neutrones deben desintegrarse a 6 protones<\/span><\/strong><span>\u00a0) y, por lo tanto,\u00a0<\/span><strong><span>deben producirse 6 antineutrinos por cada fisi\u00f3n<\/span><\/strong><span>\u00a0.\u00a0Por tanto, el reactor nuclear t\u00edpico produce aproximadamente\u00a0<\/span><strong><span>6 x 10\u00a0<\/span><sup><span>20<\/span><\/sup><span>antineutrinos por segundo<\/span><\/strong><span>\u00a0(~ 200 MeV \/ fisi\u00f3n; ~ 6 antineutrinos \/ fisi\u00f3n; 3000 MW\u00a0<\/span><sub><span>th<\/span><\/sub><span>\u00a0; 9.375 x 10\u00a0<\/span><sup><span>19<\/span><\/sup><span>\u00a0fisiones \/ seg).<\/span><\/p>\n<p><strong><span>Referencia: Griffiths, David, Introducci\u00f3n a las part\u00edculas elementales, Wiley, 1987.<\/span><\/strong><\/p>\n<figure id=\"attachment_11688\" aria-describedby=\"caption-attachment-11688\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Beta_Minus_Decay.png\"><img loading=\"lazy\" class=\"size-medium wp-image-11688\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Beta_Minus_Decay-300x79.png\" alt=\"desintegraci\u00f3n beta\" width=\"300\" height=\"79\" \/><\/a><figcaption id=\"caption-attachment-11688\" class=\"wp-caption-text\"><span>Desintegraci\u00f3n beta del n\u00facleo C-14.<\/span><\/figcaption><\/figure>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<figure id=\"attachment_12005\" aria-describedby=\"caption-attachment-12005\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/FirstNeutrinoEvent.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-12005\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/FirstNeutrinoEvent-300x225.jpg\" alt=\"Evento de neutrinos\" width=\"300\" height=\"225\" \/><\/a><figcaption id=\"caption-attachment-12005\" class=\"wp-caption-text\"><span>Fuente: wikipedia.org<\/span><\/figcaption><\/figure>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<figure id=\"attachment_12005\" aria-describedby=\"caption-attachment-12005\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/antineutrino-detector.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-12005\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/antineutrino-detector-300x182.jpg\" alt=\"Detector de antineutrinos\" width=\"300\" height=\"182\" \/><\/a><figcaption id=\"caption-attachment-12005\" class=\"wp-caption-text\"><span>El interior de un detector de antineutrinos cil\u00edndrico antes de ser llenado con un centelleador l\u00edquido transparente, que revela las interacciones de los antineutrinos por los destellos de luz muy tenues que emiten.\u00a0Tubos fotomultiplicadores sensibles se alinean en las paredes del detector, listos para amplificar y registrar los destellos indicadores.<\/span><br \/><span>Foto: Roy Kaltschmidt, LBNL<\/span><br \/><span>Fuente: Experimento de neutrinos del reactor de Daya Bay<\/span><\/figcaption><\/figure>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<figure id=\"attachment_12005\" aria-describedby=\"caption-attachment-12005\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Antineutrino_detection.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-12005\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Antineutrino_detection-300x224.jpg\" alt=\"detecci\u00f3n de antineutrinos\" width=\"300\" height=\"224\" \/><\/a><figcaption id=\"caption-attachment-12005\" class=\"wp-caption-text\"><span>Fuente: Diapositivas - Dr. Blucher, Instituto Enrico Fermi<\/span><\/figcaption><\/figure>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<figure id=\"attachment_11612\" aria-describedby=\"caption-attachment-11612\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/energy_release_fission.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-11612\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/energy_release_fission-300x221.jpg\" alt=\"Energ\u00eda de la fisi\u00f3n de uranio\" width=\"300\" height=\"221\" \/><\/a><figcaption id=\"caption-attachment-11612\" class=\"wp-caption-text\"><span>Energ\u00eda de la fisi\u00f3n de uranio<\/span><\/figcaption><\/figure>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<figure id=\"attachment_11611\" aria-describedby=\"caption-attachment-11611\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/fission_fragments_yield.png\"><img loading=\"lazy\" class=\"size-medium wp-image-11611\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/fission_fragments_yield-300x240.png\" alt=\"Rendimientos de fragmentos de fisi\u00f3n\" width=\"300\" height=\"240\" \/><\/a><figcaption id=\"caption-attachment-11611\" class=\"wp-caption-text\"><span>Rendimiento de fragmentos de fisi\u00f3n para diferentes n\u00facleos.\u00a0Las masas de fragmentos m\u00e1s probables se encuentran alrededor de la masa 95 (cript\u00f3n) y 137 (bario).<\/span><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Los antineutrinos son las antipart\u00edculas de los neutrinos.\u00a0El antineutrino es una part\u00edcula subat\u00f3mica elemental con masa infinitesimal y sin carga el\u00e9ctrica.\u00a0Dosimetr\u00eda de radiaci\u00f3n [\/ su_quote] Los antineutrinos\u00a0son las antipart\u00edculas de los\u00a0neutrinos\u00a0.\u00a0El antineutrino es una\u00a0part\u00edcula subat\u00f3mica elemental\u00a0con masa infinitesimal (menos de 0.3eV ..?) Y sin carga el\u00e9ctrica.\u00a0Los neutrinos y antineutrinos pertenecen a la familia de los\u00a0leptones\u00a0, &#8230; <a title=\"\u00bfQu\u00e9 es el antineutrino? &#8211; Definici\u00f3n\" class=\"read-more\" href=\"https:\/\/www.radiation-dosimetry.org\/es\/que-es-el-antineutrino-definicion\/\" aria-label=\"M\u00e1s en \u00bfQu\u00e9 es el antineutrino? &#8211; Definici\u00f3n\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[50],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00bfQu\u00e9 es el antineutrino? - Definici\u00f3n<\/title>\n<meta name=\"description\" content=\"Los antineutrinos son las antipart\u00edculas de los neutrinos. 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