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Communication Dans Un Congrès Année : 2022

Interpreting AFBb, ALR and MW

Résumé

After the long-standing mismatch between ALR and AFBb measurements for predicting the Higgs boson mass, the recent and very precise result on Mw confirms the existence of a crisis in the sector of electroweak measurements. In this note, it is shown that ALR and Mw can be simply reconciled by assuming a common value for the T parameter. Consequently, the AFBb deviation is amplified and reaches a 4 s.d. significance. Interpreting this as evidence for a non-universal behaviour of the b quark is proposed within an extra dimension model. Large deviations with respect to the SM are expected at future Z factories.

Dates et versions

hal-03843448 , version 1 (08-11-2022)

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Francois Richard. Interpreting AFBb, ALR and MW. 1st Workshop of the Higgs/Top/EW group, Apr 2022, Geneva, Switzerland. ⟨hal-03843448⟩
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