Experimento E36 en J-PARC

Haiyun Lu, Chaden Djalali

Resumen

El experimento E36 se ha llevado a cabo en J-PARC para buscar anomalías a la universalidad leptónica en las desintegraciones en dos leptones del kaón K l2 . Se extraerá un valor preciso de la fracción de anchos de desintegración RK=Γ(Ke2) =Γ(Kμ2) y se comparará con el valor del modelo estándar (SM). Cualquier diferencia considerable sugeriría una nueva física más allá del SM. Simultáneamente, E36 es sensible a los bosones de gauge ligeros U(1) que podrían estar asociados con la materia oscura o explicar anomalías relacionadas con el muón (g-2). El experimento y el estado del análisis serán presentados.

Palabras clave

modelo standard; detección de kaones; leptones; materia no luminosa; J-PARC; calibración; calorímetros; desintegración leptónica

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