用于寿命测量的永久八极磁超冷中子阱的研究进展
Progress Towards A Permanent Octupole Magnetic Ultra-Cold Neutron Trap for Lifetime Measurements
摘要：
由于最近的精确测量结果之间存在很大的分歧，目前对中子$β$衰变寿命的认识受到了仔细的审查。使用磁俘获超冷中子（UCN）的测量提供了没有虚假损失的存储的可能性，这可以提供可靠的中子寿命值。本文介绍了用Halbach型永久八极磁铁制作的Ioffe型阱实现中子寿命测量的进展。实验过程将UCN气体提取到真空中，这减少了许多已知的中子损失通道，并通过原位检测产生的质子来检测中子衰变。
英文摘要：
The current knowledge of the neutron $β$-decay lifetime has come under scrutiny as of late due to large disagreements between recent precise measurements. Measurements using magnetically trapped Ultra-Cold Neutrons (UCNs) offer the possibility of storage without spurious losses which can provide a reliable value for the neutron lifetime. The progress towards realizing a neutron lifetime measurement using a Ioffe-type trap made with a Halbach-type permanent octupole magnet is presented here. The experimental procedure extracts a gas of UCNs into vacuum, which reduces many known channels of neutron losses, and detects the neutron decays via in-situ detection of the produced protons.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
