Neutron Oscillations and the Parity Doubling Theorem

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Fujikawa, K.; Tureanu, A. Neutron Oscillations and the Parity Doubling Theorem. Symmetry 2021, 13, 2202.

Titel: Neutron Oscillations and the Parity Doubling Theorem
Författare: Fujikawa, Kazuo; Tureanu, Anca
Utgivare: Multidisciplinary Digital Publishing Institute
Datum: 2021-11-18
Permanenta länken (URI):
Abstrakt: We review several aspects of parity and CP violation in the framework of neutron-antineutron oscillations. We focus on the parity doubling theorem, which provides a criterion for neutron oscillation in the general theory with <inline-formula><math xmlns="" display="inline"><semantics><mrow><mo>Δ</mo><mi>B</mi><mo>=</mo><mn>2</mn></mrow></semantics></math></inline-formula> baryon number-violating interactions. We prove by explicit calculations that the violation of the conventional parity symmetry with <inline-formula><math xmlns="" display="inline"><semantics><mrow><msup><mi>P</mi><mn>2</mn></msup><mo>=</mo><mn>1</mn></mrow></semantics></math></inline-formula> is the necessary condition for neutron oscillations to happen. While the CP violation is not manifest in the oscillation, it is nevertheless intrinsic to the system, and it is transferred, by the mixing matrix, to the neutron interactions and potentially observable as a contribution to the electric dipole moment.

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