Cálculo de la anchura de decaimiento del bosón de Higgs H02 del modelo 3-3-1
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Date
2024
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Universidad Nacional de Trujillo
Abstract
Este trabajo aborda una de las propuestas frente a los desafíos del modelo estándar, conocida como el modelo 3-3-1 con leptones pesados. En este marco, se extiende el espectro de partículas del modelo estándar, anticipando la existencia de leptones exóticos, junto con nuevos bosones gauge, Higgs cargados y doblemente cargados. Se estudiaron los lagrangianos de interacción que dieran información sobre el bosón de Higgs H02 tales como el sector de Higgs y el sector de Yukawa. A partir de ello se calcularon los acoplamientos del bosón de Higgs H02 para determinar las amplitudes propias de los decaimientos de este Bosón escalar. Finalmente, con estas amplitudes se pudo llegar a la expresión de las anchuras y por ende a la anchura total del bosón de Higgs H02 , un parámetro clave para estimar la vida media de las partículas
Abstract This work addresses one of the proposals to tackle the challenges of the Standard Model, known as the 3-3-1 model with heavy leptons In this framework, the particle spectrum of the Standard Model is extended, predicting the existence of exotic leptons along with new gauge bosons, charged and doubly charged Higgs bosons. The interaction Lagrangians were studied to provide information about the Higgs boson H02 focusing on the Higgs sector and the Yukawa sector. From this the couplings of the Higgs boson H02 were calculated to determine the decay amplitudes of this scalar boson Finally, with these amplitudes the expressions for the widths were obtained, and thus the total width of the Higgs boson H02 , a key parameter to estimate the particle’s lifetime
Abstract This work addresses one of the proposals to tackle the challenges of the Standard Model, known as the 3-3-1 model with heavy leptons In this framework, the particle spectrum of the Standard Model is extended, predicting the existence of exotic leptons along with new gauge bosons, charged and doubly charged Higgs bosons. The interaction Lagrangians were studied to provide information about the Higgs boson H02 focusing on the Higgs sector and the Yukawa sector. From this the couplings of the Higgs boson H02 were calculated to determine the decay amplitudes of this scalar boson Finally, with these amplitudes the expressions for the widths were obtained, and thus the total width of the Higgs boson H02 , a key parameter to estimate the particle’s lifetime
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Keywords
Modelo 3-3-1, Bosón H02, Acoplamientos, Anchura total