{"id":31380,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/medida-de-las-correlaciones-transversas-de-espin-en-la-desintegracion-z0-tautau\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"medida-de-las-correlaciones-transversas-de-espin-en-la-desintegracion-z0-tautau","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/medida-de-las-correlaciones-transversas-de-espin-en-la-desintegracion-z0-tautau\/","title":{"rendered":"Medida de las correlaciones transversas de espin en la desintegracion z0-tau+tau-."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Federico S\u00e1nchez Nieto <\/strong><\/h2>\n<p>La primera medida de la correlacion entre las componentes transversas de los espines de los leptones tau en la desintegracion zo-tau+tau- se ha realizado usando el detector aleph de lep. Ademas de la polarizacion longitudinal del lepton tau en el proceso e+e&#8211;tau+tau-, ya medidas por los cuatro experimentos de lep, existen dos correlaciones entre las componentes transversas (contenidas en el plano de produccion del estado final) y normales (perpendiculares al plano de produccion) de sus espines. Esta es la primera medida realizada de las correlaciones entre las componentes transversa-transversa, att, y transversanormal, atn. La medida se ha realizado utilizando las asimetrias en el angulo aplanar entre los productos de desintegracion de los dos leptones tau, en base a una luminosidad total de 80pb-1 recogida por el detector aleph de lep entre los a\u00f1os 1992 a 1994 con una energia de centro de masas igual a la masa del boson zo. Los resultados obtenidos son:  att= 1.06+-0.13(stat)+-0.05(stat) y atn= 0.08+-0.13(stat)+-0.04(stat). Ambos resultados estan en buen acuerdo con las predicciones de la teoria modelo standard, att= 0.989+-0.001 y atn= 0.0.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Medida de las correlaciones transversas de espin en la desintegracion z0-tau+tau-.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Medida de las correlaciones transversas de espin en la desintegracion z0-tau+tau-. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Federico S\u00e1nchez Nieto <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de 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>Enrique Fernandez Sanchez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jose Bernabeu <\/li>\n<li>Llu\u00eds Garrido Beltr\u00e1n (vocal)<\/li>\n<li>Luigi Rolandi (vocal)<\/li>\n<li>Juan  Jos\u00e9 Gomez Cadenas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Federico S\u00e1nchez Nieto La primera medida de la correlacion entre las componentes transversas de los espines 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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