2018/05/31 by H. Ejiri, J. D. Vergados
Physics and Astronomy · #hep-ph #nucl-th
paper · pdf · doi:10.1088/1361-6471/aaf55b
3 figures, 1 table. References added.To appear 2018 J. Phys. G: Nucl. Part. Phys. https://doi.org/10.1088/1361-6471/aaf55b arXiv admin note: text overlap with arXiv:1801.01124, arXiv:1203.3081 by other authors
arxiv created 2018/12/04 · arxiv updated 2019/01/30
We consider the possibility that a neutron may disappear inside the nucleus, which will demonstrate the existence of baryon violating ΔB=1 interactions. It has recently been proposed that such a process may have an effect on the free neutron decay life time. We evaluate the widths for n→ χ and n→ χγ, with χ being a light dark matter particle emitted by a loosely bound neutron in various light nuclei. We find that, assuming a mass mχ close to 938 MeV, the obtained width for n→ χ in 11Be is much larger than the corresponding beta decay width. This suggests a severe limit on the possible decay channel of n → χγ for free neutron.