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| Natura: | Preprint |
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2023
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| Accesso online: | https://arxiv.org/abs/2312.12114 |
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| _version_ | 1866910536161034240 |
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| author | Hao, Yongliang Nyirenda, Kamphamba Sokalao Chen, Zhenwei |
| author_facet | Hao, Yongliang Nyirenda, Kamphamba Sokalao Chen, Zhenwei |
| contents | In this work, we explore the possibility of the $n$-$\bar{n}$ oscillation accompanied by CP-violation in the presence of magnetic fields. The $n$-$\bar{n}$ oscillation, which violates the baryon number ($\mathcal{B}$) by two units ($|Δ\mathcal{B}| = 2$), 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 $n$-$\bar{n}$ 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 $n$-$\bar{n}$ 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 $\mathcal{B}$-violation and CP-violation and attempt to disentangle the effects of such parameters. The $n$-$\bar{n}$ oscillation process accompanied by CP-violation may open a promising avenue for exploring new physics beyond the Standard Model (SM). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_12114 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Neutron-antineutron oscillation accompanied by CP-violation in magnetic fields Hao, Yongliang Nyirenda, Kamphamba Sokalao Chen, Zhenwei High Energy Physics - Phenomenology In this work, we explore the possibility of the $n$-$\bar{n}$ oscillation accompanied by CP-violation in the presence of magnetic fields. The $n$-$\bar{n}$ oscillation, which violates the baryon number ($\mathcal{B}$) by two units ($|Δ\mathcal{B}| = 2$), 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 $n$-$\bar{n}$ 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 $n$-$\bar{n}$ 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 $\mathcal{B}$-violation and CP-violation and attempt to disentangle the effects of such parameters. The $n$-$\bar{n}$ oscillation process accompanied by CP-violation may open a promising avenue for exploring new physics beyond the Standard Model (SM). |
| title | Neutron-antineutron oscillation accompanied by CP-violation in magnetic fields |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.12114 |