LHCb-experimentet finner tecken på fysik bortom standardmodellen

26 maj 2026

Rapporterad av AI

Forskare vid CERN:s Large Hadron Collider har observerat partikelsönderfall som avviker från förutsägelserna i standardmodellen. Resultaten kommer från LHCb-experimentet och visar på en avvikelse från teorin med fyra standardavvikelser. Om de bekräftas kan resultaten tyda på oupptäckta partiklar eller krafter.

Uppgifterna kommer från studier av sällsynta "pingvinsönderfall" som involverar B-mesoner, vilka omvandlas till en kaon, en pion och två myoner. Forskare undersökte vinklar, energier och sönderfallshastigheter genom att använda data från cirka 650 miljarder B-mesonsönderfall som samlades in mellan 2011 och 2018. Mätningarna skiljer sig från förväntningarna i standardmodellen, och sannolikheten för att avvikelsen beror på slumpmässiga fluktuationer, under förutsättning att teorin är korrekt, är endast en på 16 000.

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24 maj 2026 07:26

LHCb-experimentet finner tecken på fysik bortom standardmodellen

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