Electroweak anomalies: muon g-2, W mass, 95 GeV

This text mentions work from 2024 on. Those parts were partly written without a live literature search and have not been checked by an editor yet.

Some very precise electroweak and Higgs-sector measurements have disagreed with Standard Model predictions, which could signal new particles or mistakes in theory or experiment. Each needs to be confirmed or explained.

Why it matters

Precision tests reach mass scales far above direct collider reach.

Review

R. Aliberti et al., The anomalous magnetic moment of the muon in the Standard Model: an update, Physics Reports, 2025. https://arxiv.org/abs/2505.21476 reference checked

Timestamp record

Signed record
5f9fc1842445…
Public log
Entry 240, in checkpoint 2,123
In the log by
Block 969,698, 2026-10-03

This text was in the PubPhys log by that date. The date says nothing about when the problem was first posed.

4 problems