In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements using bottled ultracold neutrons (UCN), which provides better characterization of systematic uncertainties and enables higher precision than previous measurement techniques. An active detector that can be lowered into the trap has been used to measure the neutron distribution as a function of height and measure the influence of marginally trapped UCN on the neutron lifetime measurement. In addition, measurements have demonstrated phase-space evolution and its effect on the lifetime measurement.
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Constraints on Skyrme equations of state from doubly magic nuclei, ab initio calculations of low-density neutron matter, and neutron stars
- Award ID(s):
- 1811855
- PAR ID:
- 10156245
- Date Published:
- Journal Name:
- Physical Review C
- Volume:
- 100
- Issue:
- 6
- ISSN:
- 2469-9985
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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