{"id":2940,"date":"1994-01-01T00:00:00","date_gmt":"1994-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1994\/01\/01\/determinacion-de-la-constante-de-acoplamiento-fuerte-alfa-mz-con-el-detector-delphi-en-lep\/"},"modified":"1994-01-01T00:00:00","modified_gmt":"1994-01-01T00:00:00","slug":"determinacion-de-la-constante-de-acoplamiento-fuerte-alfa-mz-con-el-detector-delphi-en-lep","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/determinacion-de-la-constante-de-acoplamiento-fuerte-alfa-mz-con-el-detector-delphi-en-lep\/","title":{"rendered":"Determinacion de la constante de acoplamiento fuerte, alfa (mz), con el detector delphi en lep."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Valls Ferrer Juan  Antonio <\/strong><\/h2>\n<p>En el presente trabajo se ha determinado la constante de acoplamiento fuerte para quarks b, alfa    (mz), y se ha comprobado la independencia del sabor de qcd mediante la medida del cociente alfa   \/alfa     . Los resultados se basan en una luminosidad total integrada de   40 pb elevado a -1 recogida con el detector delphi en lep durante los a\u00f1os 1990, 1991 y 1992 y corresponde a 1.052.000 desintegraciones hadronicas del z .  se han desarrollado dos metodos basados en dos selecciones diferentes de una muestra de sucesos enriquecida en quarks b a partir de una muestra inicial de sucesos multihadronicos con leptones inclusivos. Los resultados experimentales reflejan el efecto de la masa del quark b en la seccion eficaz de produccion de sucesos con 3 jets y resultan ser, una vez corregidos por este efecto:  alfa (mz)=0.1177+-0.0017(estd)+-0.0030(sist)+-0.0080(escala)+-0 .0036(mb) alfa =1.005+-0.024(estd + sist)+-0.032(mb) en acuerdo con la independencia del sabor de qcd en un 4%.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Determinacion de la constante de acoplamiento fuerte, alfa (mz), con el detector delphi en lep.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Determinacion de la constante de acoplamiento fuerte, alfa (mz), con el detector delphi en lep. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Valls Ferrer Juan  Antonio <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1994<\/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>Juan  Antonio Fuster Verdu<\/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>Win De Boer (vocal)<\/li>\n<li>Enrique Fernandez Sanchez (vocal)<\/li>\n<li>Eduardo Ros Martinez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Valls Ferrer Juan Antonio En el presente trabajo se ha determinado la constante de acoplamiento fuerte para [&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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