标题： 质子 β% 衰变在强磁场中 显示英文标题

标题： Proton $β% decay in large magnetic fields

摘要： 质子和中子的异常磁矩之间微妙的相互作用，在磁场$B\ge 2\times 10^{14}$T 时使中子稳定，而在磁场$B\ge 5\times 10^{14}$T 时质子会不稳定并通过$\beta$辐射衰变为中子。 给出了这些论证适用的场强限制，并将其与存在这些场时真空稳定性的问题相关联。 讨论了可能的天体物理后果。 显示英文摘要

摘要： A delicate interplay between the anomalous magnetic moments of the proton and neutron makes, in magnetic fields $B\ge 2\times 10^{14}$ T, the neutron stable and for fields $B\ge 5\times 10^{14}$ T the proton becomes unstable to a decay into a neutron via $\beta$ emission. Limits on the field strengths for which these arguments hold are presented and are related to questions of vacuum stability in the presence of such fields. Possible astrophysical consequences are discussed.