{"id":133089,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nucleosintesis-primordial-en-un-universo-inhomogeneo-en-presencia-de-particulas-inestables\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"nucleosintesis-primordial-en-un-universo-inhomogeneo-en-presencia-de-particulas-inestables","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/nucleosintesis-primordial-en-un-universo-inhomogeneo-en-presencia-de-particulas-inestables\/","title":{"rendered":"Nucleosintesis primordial en un universo inhomogeneo en presencia de particulas inestables."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Josefa Lopez Suarez <\/strong><\/h2>\n<p>En este trabajo investigamos la posibilidad de que la nucleosintesis primordial que tiene lugar en un universo que contenga inhomogeneidades barionicas (producida durante la transicion de fase quark-hadron o por cualquier otro mecanismo) y en presencia de particulas masivas inestables sea capaz de explicar las abundancias de todos los elementos ligeros, inferidas a partir de los datos observacionales para un valor de omega barionica mayor, que la obtenida para una nucleosintesis primordial estandar.  este trabajo difiere de los trabajos anteriores en que nosotros hemos usado la combinacion de dos modelos: un modelo inhomogeneo que incluye la difusion de neutrones antes, durante y despues de la nucleosintesis, y hemos introducido tambien particulas x, no relativistas, las cuales se desintegraran una vez que las reacciones nucleares estandares ya han acabado. El efecto de estas particulas es variar la densidad de materia-energia del universo, la entropia y la relacion entre la temperatura y el tiempo. Los productos de su desintegracion se pueden dividir en productos electromagneticos y productos hadronicos. Los cuales variaran las abundancias de los elementos ligeros.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nucleosintesis primordial en un universo inhomogeneo en presencia de particulas inestables.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nucleosintesis primordial en un universo inhomogeneo en presencia de particulas inestables. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Josefa Lopez Suarez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Ram\u00f3n Canal Masgoret<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Enric Verdaguer Oms <\/li>\n<li>Rosa Dom\u00ednguez Tenreiro (vocal)<\/li>\n<li>Jordi Isern Vilaboy (vocal)<\/li>\n<li>Carlos Antonio Abia Ladron De Guevara (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Josefa Lopez Suarez En este trabajo investigamos la posibilidad de que la nucleosintesis primordial que tiene lugar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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