The strong CP problem is a question in particle physics, which brings up the following quandary: why does quantum chromodynamics (QCD) seem to preserve ...

In particle physics, CP violation is a violation of CP-symmetry ): the combination of C-symmetry (charge conjugation symmetry) and P-symmetry (parity ...

Kaon · C-symmetry · CKM matrix

In particle physics, the Peccei–Quinn theory is a well-known, long-standing proposal for the resolution of the strong CP problem formulated by Roberto Peccei ...

Nov 19, 2019 · If you ask a physicist what the biggest unsolved problem facing the field today is, you're likely to get a variety of answers.

Duration: 1:05:58
Posted: Mar 13, 2024

In physics, a coupling constant or gauge coupling parameter is a number that determines the strength of the force exerted in an interaction.

Learn more about this page. This is the talk page for discussing improvements to the CP violation article. This is not a forum for general discussion of the ...

Feb 1, 2023 · The Wikipedia entry you linked explains it quite nicely. It is a fine-tuning problem because in principle the dimensionless variable ˉθ can ...