nLab
Yukawa coupling

Contents

Context

Physics

physics, mathematical physics, philosophy of physics

Surveys, textbooks and lecture notes


theory (physics), model (physics)

experiment, measurement, computable physics

Contents

Idea

In the standard model of particle physics, the Yukawa couplings encode the interaction between the fundamental fermion fields and the Higgs field, and thus, via the Higgs mechanism, the masses of the fermion field after electroweak symmetry breaking.

In string phenomenology

In intersecting D-brane models Yukawa couplings are encoded by worldsheet instantons of open strings stretching between the intersecting D-branes (see Marchesano 03, Section 7.5). Mathematically this is encoded by derived hom-spaces in a Fukaya category (see Marchesano 03, Section 7.5).

table grabbed from Marchesano 03

References

See also

On computation of Yukawa coupling in heterotic string theory:

  • Stefan Blesneag, Evgeny I. Buchbinder, Andrei Constantin, Andre Lukas, Eran Palti, Matter Field Kähler Metric in Heterotic String Theory from Localisation (arXiv:1801.09645)

and in intersecting D-brane models of type II string theory via Fukaya categories:

Last revised on February 6, 2019 at 03:54:15. See the history of this page for a list of all contributions to it.