{"id":11256,"date":"2001-12-06T00:00:00","date_gmt":"2001-12-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/un-telescopio-subterraneo-de-axiones-y-wimps-como-instrumento-de-investigacion-astrofa%c2%adsica-y-detector-de-materia-oscura\/"},"modified":"2001-12-06T00:00:00","modified_gmt":"2001-12-06T00:00:00","slug":"un-telescopio-subterraneo-de-axiones-y-wimps-como-instrumento-de-investigacion-astrofa%c2%adsica-y-detector-de-materia-oscura","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/un-telescopio-subterraneo-de-axiones-y-wimps-como-instrumento-de-investigacion-astrofa%c2%adsica-y-detector-de-materia-oscura\/","title":{"rendered":"Un telescopio subterr\u00e1neo de axiones y wimps como instrumento de investigaci\u00f3n astrof\u00edsica y detector de materia oscura"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Igor Garc\u00eda Irastorza <\/strong><\/h2>\n<p>El presente trabajo de tesis se ha llevado a cabo b\u00e1sicamente en el marco de dos experimentos de detecci\u00f3n de materia oscura con detectores semiconductores de germanio que el grupo del laboratorio de f\u00edsica nuclear y altas energ\u00edas de la universidad de zaragoza ha llevado a cabo en el laboratorio subterr\u00e1neo del t\u00fanel del somport en canfranc a 2450 metros equivalentes de agua de profundidad, bajo los pirineos aragoneses.  el experimento cosme-2 ha buscado la detecci\u00f3n de axiones solares a trav\u00e9s del efecto primakoff-bragg en el cristal de germanio de 0.234 g que compone el detector cosme. Del an\u00e1lisis de los 311 d\u00edas de datos recogidos se ha obtenido un l\u00edmite al acoplo axi\u00f3n-foton de gayy &lt; 2.8 x 10-9 gev-1, del mismo orden que el obtenido por solax, el \u00fanico otro experimento que usa esta t\u00e9cnica y ambos \u00fanicos limites de laboratorio en el rango de masas altas (por encima de unos 3 ev) para el axi\u00f3n.  por otro lado, el experimento igex-dm ha operado un detector de 2 kg de germanio para la detecci\u00f3n directa de wimps del halo gal\u00e1ctico mediante su dispersi\u00f3n el\u00e1stica con los n\u00facleos del detector. El fondo experimental obtenido es el mejor hasta la fecha en el rango energ\u00e9tico por debajo de 10 kev. De ello se deduce una exclusi\u00f3n en el espacio param\u00e9trico del wimp que supera los de experimentos similares en el rango de masas por debajo de los 100 gev y en particular se aproxima a la regi\u00f3n de la se\u00f1al positiva de wimps atribuida recientemente por la colaboraci\u00f3n dama, lo que implica interesantes perspectivas de futuro.  de manera paralela a estos trabajos experimentales, se han desarrollado dos estudios te\u00f3rico-fenomenol\u00f3gicos: uno sobre la detecci\u00f3n de axiones con detectores cristalinos mediante el efecto primakoff-bragg y otro sobre la sensibilidad de distintos materiales y experimentos a la se\u00f1al de modulaci\u00f3n de wimps. Ambos estudios han servido para clarificar las perspectivas que tienen ambas t\u00e9cn<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Un telescopio subterr\u00e1neo de axiones y wimps como instrumento de investigaci\u00f3n astrof\u00edsica y detector de materia oscura<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Un telescopio subterr\u00e1neo de axiones y wimps como instrumento de investigaci\u00f3n astrof\u00edsica y detector de materia oscura <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Igor Garc\u00eda Irastorza <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 12\/06\/2001<\/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>Angel Morales Villasevil<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Bernabe\u00fa alberola <\/li>\n<li>Antonio Ferrer soria (vocal)<\/li>\n<li>enrique Fernandez sanchez (vocal)<\/li>\n<li>julio Morales villasevil (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Igor Garc\u00eda Irastorza El presente trabajo de tesis se ha llevado a cabo b\u00e1sicamente en el marco [&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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