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| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.contributor.author | Ramon Bautista, Aldair Alberto. | - |
| dc.date.accessioned | 2026-10-19T16:37:27Z | - |
| dc.date.available | 2023 | - |
| dc.date.available | 2026-10-19T16:37:27Z | - |
| dc.date.issued | 2023 | - |
| dc.identifier.citation | Ramon Bautista, A. A. (2023) Correcciones cuánticas a la masa del bosón W en el modelo electrodébil [Trabajo de Grado Pregrado, Universidad de Pamplona]. Repositorio Hulago Universidad de Pamplona. https://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/11876 | es_CO |
| dc.identifier.uri | https://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/11876 | - |
| dc.description | En este trabajo se presenta el cálculo de la corrección cuántica a la masa del bosón W mediado por el campo del Higgs al orden de un-loop en el marco de la teoría electro-débil. El valor clásico a nivel árbol de la masa del bosón W se derivo usando el mecanismo de Higgs relacionado con el rompimiento espontáneo de la simetría SU(2) × U(1). Adicionalmente, utilizando el método diagramático basado en las reglas de Feynman, y con ayuda de los paquetes FeynArts y FeynCalc de Mathematica, se obtuvo una expresión analítica para la corrección cuántica a partir de las auto-energías del bosón W y se realizó una estimación numérica de su magnitud. Haciendo uso del código SMDR la contribución obtenida se incluyo en un análisis fenomenológico donde las correcciones radiativas, a distintos ordenes perturbativos, se incluyen en la predicción teórica de la masa del W para distintos valores de la escala de renormalización y del valor preciso de la masa del quark top. Estas predicciones se compararon con los valores experimentales publicados por CDF-II en 2022 y ATLAS en 2023. En particular, la auto-energía del W mediada por un bosón de Higgs tiene un valor de ΔMW = 0.095447 GeV evaluado a la escala electrodébil, lo cual equivale aproximadamente a 0.1% del valor de la masa del W a nivel árbol. Si se incluye la corrección completa a un-loop la contribución aumenta a un 0.62% del valor clásico. Las correcciones cuánticas hasta dos- y tres-loops no superan el 1% del valor total, mostrando que en el Modelo Estándar no es posible solucionar la discrepancia observada por CDF-II. | es_CO |
| dc.description.abstract | El autor no proporciona la información sobre este ítem. | es_CO |
| dc.format.extent | 85 | es_CO |
| dc.format.mimetype | application/pdf | es_CO |
| dc.publisher | Universidad de Pamplona - Facultad de Ciencias Basicas. | es_CO |
| dc.subject | Bosón W. | es_CO |
| dc.subject | Diagramas de feynman. | es_CO |
| dc.subject | Masa física. | es_CO |
| dc.subject | Modelo electrodébil. | es_CO |
| dc.subject | Mecánismo de higgs. | es_CO |
| dc.title | Correcciones cuánticas a la masa del bosón W en el modelo electrodébil. | es_CO |
| dc.type | http://purl.org/coar/resource_type/c_7a1f | es_CO |
| dc.date.accepted | 2023 | - |
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| dc.rights.accessrights | http://purl.org/coar/access_right/c_abf2 | es_CO |
| dc.type.coarversion | http://purl.org/coar/resource_type/c_2df8fbb1 | es_CO |
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