Skip to main content

Nuclear Experiment

arXiv:2205.02323 (nucl-ex)
[Submitted on 4 May 2022]

Title:Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap

Authors:C. Cude-Woods, F. M. Gonzalez, E. M. Fries, T. Bailey, M. Blatnik, N. B. Callahan, J. H. Choi, S. M. Clayton, S. A. Currie, M. Dawid, B. W. Filippone, W. Fox, P. Geltenbort, E. George, L. Hayen, K. P. Hickerson, M. A. Hoffbauer, K. Hoffman, A. T. Holley, T. M. Ito, A. Komives, C.-Y. Liu, M. Makela, C. L. Morris, R. Musedinovic, C. O'Shaughnessy, R. W. Pattie Jr., J. Ramsey, D. J. Salvat, A. Saunders, 5 E. I. Sharapov, S. Slutsky, V. Su, X. Sun, C. Swank, Z. Tang, W. Uhrich, J. Vanderwerp, P. Walstrom, Z. Wang, W. Wei, A. R. Young
View PDF
Abstract:The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing protons in cold neutron beams and the lifetime measured in neutron storage experiments. Measurements using different techniques are important for investigating whether there are unidentified systematic effects in any of the measurements. In this paper we report a new measurement using the Los Alamos asymmetric magneto-gravitational trap where the surviving neutrons are counted external to the trap using the fill and dump method. The new measurement gives a free neutron lifetime of . Although this measurement is not as precise, it is in statistical agreement with previous results using in situ counting in the same apparatus.
Subjects: Nuclear Experiment (nucl-ex); Instrumentation and Detectors (physics.ins-det)
Report number: LA-UR-22-23486
Cite as: arXiv:2205.02323 [nucl-ex]
  (or arXiv:2205.02323v1 [nucl-ex] for this version)
  https://doi.org/10.48550/arXiv.2205.02323
Related DOI: https://doi.org/10.1103/PhysRevC.106.065506

Submission history

From: Christopher Morris [view email]
[v1] Wed, 4 May 2022 20:57:18 UTC (556 KB)
Full-text links:

Access Paper:

  • View PDF
license icon view license

Current browse context:

nucl-ex
< prev   |   next >
new | recent | 2022-05
Change to browse by:
physics
physics.ins-det

References & Citations

Bookmark

BibSonomy Reddit

Bibliographic and Citation Tools

Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)

Code, Data and Media Associated with this Article

alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
ScienceCast (What is ScienceCast?)

Demos

Replicate (What is Replicate?)
Hugging Face Spaces (What is Spaces?)
TXYZ.AI (What is TXYZ.AI?)

Recommenders and Search Tools

Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)