Peccei–Quinn theory

Target entity: Peccei–Quinn theory
Context triple: [Helen Quinn, knownFor, Peccei–Quinn theory]

• A. Kobayashi–Maskawa theory
  The Kobayashi–Maskawa theory is a fundamental framework in particle physics that explains CP violation in the Standard Model through a three-generation quark mixing matrix (the CKM matrix).
• B. Dine–Fischler–Srednicki–Zhitnitsky axion model
  The Dine–Fischler–Srednicki–Zhitnitsky axion model is a theoretical particle physics framework that introduces an axion to solve the strong CP problem in quantum chromodynamics through a spontaneously broken Peccei–Quinn symmetry.
• C. Georgi–Glashow model
  The Georgi–Glashow model is a grand unified theory in particle physics that unifies the strong, weak, and electromagnetic interactions within an SU(5) gauge symmetry framework.
• D. Glashow–Iliopoulos–Maiani mechanism
  The Glashow–Iliopoulos–Maiani mechanism is a theoretical framework in particle physics that explains the suppression of flavor-changing neutral currents by introducing the charm quark and the structure of quark mixing.
• E. Cabibbo theory
  Cabibbo theory is a framework in particle physics that describes the mixing of down and strange quarks in weak interactions through a single mixing angle, laying groundwork later generalized by the CKM matrix.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Peccei–Quinn theory
Target entity description: Peccei–Quinn theory is a proposed extension of the Standard Model that introduces a new global symmetry to explain why strong interactions conserve CP, predicting the existence of the hypothetical axion particle.

• A. Kobayashi–Maskawa theory
  The Kobayashi–Maskawa theory is a fundamental framework in particle physics that explains CP violation in the Standard Model through a three-generation quark mixing matrix (the CKM matrix).
• B. Dine–Fischler–Srednicki–Zhitnitsky axion model
  The Dine–Fischler–Srednicki–Zhitnitsky axion model is a theoretical particle physics framework that introduces an axion to solve the strong CP problem in quantum chromodynamics through a spontaneously broken Peccei–Quinn symmetry.
• C. Georgi–Glashow model
  The Georgi–Glashow model is a grand unified theory in particle physics that unifies the strong, weak, and electromagnetic interactions within an SU(5) gauge symmetry framework.
• D. Glashow–Iliopoulos–Maiani mechanism
  The Glashow–Iliopoulos–Maiani mechanism is a theoretical framework in particle physics that explains the suppression of flavor-changing neutral currents by introducing the charm quark and the structure of quark mixing.
• E. Cabibbo theory
  Cabibbo theory is a framework in particle physics that describes the mixing of down and strange quarks in weak interactions through a single mixing angle, laying groundwork later generalized by the CKM matrix.
• F. None of above. chosen