2023/12/19 by Yongliang Hao, Hao, Yongliang, Kamphamba Sokalao Nyirenda +3
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Physics and Applications #Radioactive Decay and Measurement Techniques
paper · pdf · doi:10.48550/arxiv.2312.12114
openalex publication_date 2023/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this work, we explore the possibility of the n-n oscillation accompanied by CP-violation in the presence of magnetic fields. The n-n oscillation, which violates the baryon number (B) by two units (|ΔB| = 2), can be originated from the mixing between the neutron (n) and the neutral elementary particle (η) and may give rise to non-trivial effects that are different from previous theoretical predictions. We show that the probability of the n-n oscillation can be greatly enhanced by adjusting the magnetic field properly. In particular, the peak values of the oscillation probability in the presence of resonance magnetic fields can be 8-10 orders of magnitude higher than that in the absence of magnetic fields. We point out that there might not be sizable CP-violating effects in the n-n oscillation unless the mass of η is close to the mass of the neutron. We also analyze the interplay between various parameters associated with both B-violation and CP-violation and attempt to disentangle the effects of such parameters. The n-n oscillation process accompanied by CP-violation may open a promising avenue for exploring new physics beyond the Standard Model (SM).