{"id":81502,"date":"1999-03-12T00:00:00","date_gmt":"1999-03-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/descripcion-en-espacio-de-momentos-del-sistema-nn-en-un-modelo-quiral-de-quarks\/"},"modified":"1999-03-12T00:00:00","modified_gmt":"1999-03-12T00:00:00","slug":"descripcion-en-espacio-de-momentos-del-sistema-nn-en-un-modelo-quiral-de-quarks","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/descripcion-en-espacio-de-momentos-del-sistema-nn-en-un-modelo-quiral-de-quarks\/","title":{"rendered":"Descripci\u00f3n en espacio de momentos del sistema nn en un modelo quiral de quarks"},"content":{"rendered":"<h2>Tesis doctoral de <strong> David Rodriguez Entem <\/strong><\/h2>\n<p>Se presenta en el trabajo un estudio de los estados ligados y estados de scattering de la interacci\u00f3n nn en espacio de momentos utilizando un modelo de quarks con simetr\u00eda quiral. El estudio se ha realizado tanto por debajo como por encima del umbral de producci\u00f3n de piones.  el trabajo se ha llevado a cabo mediante el m\u00e9todo del grupo resonante. para ello ha sido necesario desarrollar una formulaci\u00f3n en espacio de momentos, as\u00ed como m\u00e9todos para la obtenci\u00f3n de los elementos de matriz y la resoluci\u00f3n de la ecuaci\u00f3n de lippmann-schwinger.  el c\u00e1lculo por encima del umbral de producci\u00f3n de piones se realiza mediante el modelo de canales acoplados. En dicho modelo, la anchura de la resonancia delta se calcula en modelo quark en la aproximaci\u00f3n del modelo de emisi\u00f3n elemental. Dicha anchura es la responsable de la inelasticidad por encima del umbral del pi\u00f3n, siendo la contribuci\u00f3n m\u00e1s importante a dicha inelasticidad.  por \u00faltimo se lleva a cabo un estudio del problema de rotura de la simetr\u00eda de isospin en la interacci\u00f3n nn. Para ello se incorporan los mecanismos de rotura generados por el modelo y se calculan las diferencias en las longitudes de scattering de la onda parcial so nn para los diferentes estados de carga, calculando las combinaciones rotura de independiente de carga(cib) y rotura de simetr\u00eda de carga(csb).<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Descripci\u00f3n en espacio de momentos del sistema nn en un modelo quiral de quarks<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Descripci\u00f3n en espacio de momentos del sistema nn en un modelo quiral de quarks <\/li>\n<li><strong>Autor:<\/strong>\u00a0 David Rodriguez Entem <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 03\/12\/1999<\/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>Francisco Fernandez Gonzalez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: eulogio Oset baguena <\/li>\n<li>peter Sauer (vocal)<\/li>\n<li>pedro Gonzalez marhuenda (vocal)<\/li>\n<li>eliecer Hernandez gajate (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de David Rodriguez Entem Se presenta en el trabajo un estudio de los estados ligados y estados de [&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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