Higgs couplings to fermions and origin of mass

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.

In the Standard Model every quark and charged lepton gets its mass from the Higgs field, with an interaction strength proportional to its mass. This is confirmed for the three heaviest fermions (top, bottom, tau) but not for the lighter ones that make up ordinary matter.

Why it matters

Whether the electron and the light quarks get their mass from the Higgs is untested, and a deviation would bear directly on the origin of the flavor pattern.

Review

ATLAS Collaboration, Characterising the Higgs boson with ATLAS data from Run 2 of the LHC, Physics Reports, 2025. https://arxiv.org/abs/2404.05498 reference checked

Timestamp record

Signed record
42ba48ba8c4c…
Public log
Entry 245, 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