{"id":24009,"date":"2018-03-09T09:14:47","date_gmt":"2018-03-09T09:14:47","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/momentum-reconstruction-and-pion-production-analisis-in-the-hades-spectrometer-at-gsi\/"},"modified":"2018-03-09T09:14:47","modified_gmt":"2018-03-09T09:14:47","slug":"momentum-reconstruction-and-pion-production-analisis-in-the-hades-spectrometer-at-gsi","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/momentum-reconstruction-and-pion-production-analisis-in-the-hades-spectrometer-at-gsi\/","title":{"rendered":"Momentum reconstruction and pion production an\u00e1lisis in the hades spectrometer at gsi"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel S\u00e1nchez Garc\u00eda <\/strong><\/h2>\n<p>El presente trabajo se enmarca dentro de la colaboraci\u00f3n internacional hades con sede en el gsi, alemania. El principal objetivo de hades es el estudio de las propiedades de la materia nuclear densa, producida en colisiones de iones pesados en energias del sis. Esto se corresponde con energ\u00edas de hasta 2 gev\/a para iones ligeros como el neon, o hasta 1 gev\/a para iones pesados como el uranio. En una colisi\u00f3n de este tipo se alcanzan densidades hasta tres veces superiores a la densidad de la materia nuclear normal. A esas densidades se espera poder observar una restauraci\u00f3n parcial de la simetr\u00eda de quiral de qcd.  el m\u00e9todo experimental seguido por hades consiste en el estudio de las propiedades, esencialmente masa, de mesones vectoriales de vida corta, producidos en la zona de colisi\u00f3n. Por tener una vida media corta, \u00e9stos mesones decaen dentro de la zona de alta densidad que dura del orden de 10 fm\/c. La masa de los mesones en el medio se reconstruye a partir del estudio de su desintegraci\u00f3n en pares electr\u00f3n-positr\u00f3n. El uso de leptones tiene la ventaja de que al no sufrir interacci\u00f3n fuerte en el estado final, guardan memoria de la part\u00edcula de la que provienen.  dentro del esfuerzo experimental de la colaboraci\u00f3n hades, el presente trabajo se centra en cuatro aspectos fundamentales.  la elaboraci\u00f3n de un framework\u00bb\u00bb para el programa de reconstrucci\u00f3n, sobre el que se desarrollan algoritmos espec\u00edficos de an\u00e1lisis. El framework de hades, llmado hydra (hades system for data reduction and analysis), est\u00e1 desarrollado siguiendo un paradigma de programaci\u00f3n orientada a objetos sobre la plataforma root del cern. El uso de un paradigma orientado a objetos es importante en este \u00e1mbito porque permite forzar un cierto nivel de modularidad en el framework. Lo cual facilita a posteriori su mantenimiento, en particular teniendo en cuenta que el desarrollo es realizado por un grupo de gente geogr\u00e1ficamente disperso.  la s<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Momentum reconstruction and pion production an\u00e1lisis in the hades spectrometer at gsi<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Momentum reconstruction and pion production an\u00e1lisis in the hades spectrometer at gsi <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel S\u00e1nchez Garc\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/06\/2003<\/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> Garz\u00f3n Heydt Juan  A.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: rene Brun <\/li>\n<li>wolfgang Koenig (vocal)<\/li>\n<li>romain Holzmann (vocal)<\/li>\n<li>Jos\u00e9 Diaz medina (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel S\u00e1nchez Garc\u00eda El presente trabajo se enmarca dentro de la colaboraci\u00f3n internacional hades con sede en [&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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