{"id":76463,"date":"2018-03-09T23:21:51","date_gmt":"2018-03-09T23:21:51","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/cascadas-atmosfericas-y-modelos-hadronicos\/"},"modified":"2018-03-09T23:21:51","modified_gmt":"2018-03-09T23:21:51","slug":"cascadas-atmosfericas-y-modelos-hadronicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/cascadas-atmosfericas-y-modelos-hadronicos\/","title":{"rendered":"Cascadas atmosf\u00e9ricas y modelos hadr\u00f3nicos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Veronica Canoa Roman <\/strong><\/h2>\n<p>A la hora de estudiar los rayos c\u00f3smicos a partir de las cascadas atmosf\u00e9ricas se encuentran problemas. Estos vienen dados por la incertidumbre de los modelos hadr\u00f3nicos, debido por un lado a que las energ\u00edas a las que est\u00e1n mediadas las propiedades de las interacciones hadr\u00f3nicas en aceleradores llegar a ser hasta seis ordenes de magnitud menores, por otro lado la regi\u00f3n forward no suele ser medida en aceleradores, sin embargo es la responsable de la mayor\u00eda de las caracter\u00edsticas de la cascada. Lo que se hizo en el trabajo de tesis fue estudiar como los par\u00e1metros de la cascada se ven afectados al considerar diferentes modelos hadr\u00f3nicos. Y por otro lado se propone la posibilidad de medir par\u00e1metros de los modelos hadr\u00f3nicos a partir de cascadas atm\u00f3sfericas.  m\u00e1s en concreto, los modelos hadr\u00f3nicos que se consideran para ver los efectos que se producir\u00e1n en cascadas atmosf\u00e9ricas son:  * dos modelos hadr\u00f3nicos que predicen fen\u00f3menos colectivos. Por un lado el modelo de fusi\u00f3n de cuerdas que predice la reducci\u00f3n de la multiplicidad en la regi\u00f3n de fragmentaci\u00f3n.  * consideramos la teor\u00eda del condensado quiral desorientado (dcc). Es un modelo colectivo en la producci\u00f3n de piones, donde reduce la fracci\u00f3n de piones cargados respecto a los neutros.  * variamos la secci\u00f3n eficaz de fotoproducci\u00f3n, seg\u00fan dos propuestas, una que crece con la energ\u00eda y otra que satura para ver los cambios producidos en cascadas.  * por \u00faltimo estudiamos que pasa al variar la secci\u00f3n eficaz de pioneros y como va a afectar a cascadas, y la posibilidad de medirla,.  el estudio de todos estos modelos y el efecto que producen en cascadas nos abre la posibilidad de discriminar unos a favor de otros.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Cascadas atmosf\u00e9ricas y modelos hadr\u00f3nicos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Cascadas atmosf\u00e9ricas y modelos hadr\u00f3nicos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Veronica Canoa Roman <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 30\/09\/2005<\/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>Ricardo V\u00e1zquez L\u00f3pez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  D\u00edas de deus Jorge <\/li>\n<li>teresa Dova (vocal)<\/li>\n<li>nestor Armesto (vocal)<\/li>\n<li>lukas Nellen (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Veronica Canoa Roman A la hora de estudiar los rayos c\u00f3smicos a partir de las cascadas atmosf\u00e9ricas [&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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