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Updated: Sep 10, 2025

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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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Búsqueda de chorros emergentes en las colisiones ats=13.6TeV con el experimento ATLAS
Reports on progress in physics. Physical Society (Great Britain)
|August 21, 2025
Resumen
Este estudio buscó chorros emergentes en el experimento ATLAS, sin encontrar evidencia de nuevas partículas. La investigación excluyó las masas específicas de los hipotéticos mediadores del sector oscuro (Z
Área de la Ciencia:
- Física de altas energías
- Física de las partículas
- Las búsquedas de materia oscura
Sus antecedentes:
- El Modelo Estándar (SM) describe las partículas y fuerzas fundamentales.
- Los sectores oscuros hipotéticos pueden interactuar con el SM a través de nuevas partículas mediadoras.
- Los chorros emergentes son una firma de partículas de larga vida que se desintegran dentro del detector.
Objetivo del estudio:
- Para buscar evidencia de un hipotético sector oscuro produciendo chorros emergentes.
- Para sondear las partículas mediadoras (Z' y Φ) que conectan el sector oscuro con el SM.
- Establecer límites de exclusión para las masas mediadoras y los acoplamientos basados en la producción emergente de pares de chorros.
Principales métodos:
- Análisis de 51,8 fb-1 de los datos de la colisión protón-protón a 13,6 TeV del experimento ATLAS.
- Eventos de orientación con pares de chorros emergentes, caracterizados por múltiples vértices desplazados.
- Investigando la producción a través del mediador vectorial de canal Z' o el mediador escalar de canal Φ.
Principales resultados:
- No se observó un exceso significativo más allá de los antecedentes de SM esperados.
- Exclusión de las masas mediadoras Z' entre 600 GeV y 2550 GeV para longitudes y acoplamientos específicos de desintegración de piones oscuros.
- Se excluyen las masas del mediador Φ entre 600 GeV y 1375 GeV para un acoplamiento específico.
Conclusiones:
- Se realizó la primera búsqueda directa de la producción de pares de chorros emergentes a través de un mediador Z'.
- Se llevó a cabo el primer estudio de la producción de chorros emergentes mediada por una partícula escalar de canal t.
- Los resultados imponen restricciones a los modelos con un sector oscuro que interactúa con el SM.
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