The Neutron Enigma

Greene, Geoffrey L.; Geltenbort, Peter

doi:10.1038/scientificamerican0416-36

The Neutron Enigma

Journal Article · Tue Mar 15 00:00:00 EDT 2016 · Scientific American

DOI:https://doi.org/10.1038/scientificamerican0416-36· OSTI ID:1481712

Greene, Geoffrey L. ^[1]; Geltenbort, Peter ^[2]

Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Institut Laue-Langevin, Grenoble (France)

Two precision experiments disagree on how long neutrons live before decaying. Does the discrepancy reflect measurement errors or point to some deeper mystery?

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1481712

Journal Information:: Scientific American, Journal Name: Scientific American Journal Issue: 4 Vol. 314; ISSN 0036-8733

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

Cited By (16)

Spin flip loss in magnetic confinement of ultracold neutrons for neutron lifetime experiments Steyerl, A.; Leung, K. K. H.; Kaufman, C. arXiv https://doi.org/10.48550/arxiv.1611.05037	text	January 2016
Exotic decay channels are not the cause of the neutron lifetime anomaly Dubbers, D.; Saul, H.; Märkisch, B. arXiv https://doi.org/10.48550/arxiv.1812.00626	text	January 2018
Comment on "Neutron lifetime and dark decay of the neutron and hydrogen'' Fornal, Bartosz; Grinstein, Benjamin arXiv https://doi.org/10.48550/arxiv.1902.08975	preprint	January 2019
Neutron disappearance inside the nucleus Ejiri, H.; Vergados, J. D. Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 2 https://doi.org/10.1088/1361-6471/aaf55b	journal	January 2019
The neutron lifetime anomaly and charge exchange collisions of trapped protons Byrne, J.; Worcester, D. L. Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 8 https://doi.org/10.1088/1361-6471/ab256b	journal	June 2019
Monte Carlo simulations of trapped ultracold neutrons in the UCN τ experiment Callahan, Nathan; Liu, Chen-Yu; Gonzalez, Francisco Physical Review C, Vol. 100, Issue 1 https://doi.org/10.1103/physrevc.100.015501	journal	July 2019
Neutral hadrons disappearing into the darkness Barducci, D.; Fabbrichesi, M.; Gabrielli, E. Physical Review D, Vol. 98, Issue 3 https://doi.org/10.1103/physrevd.98.035049	journal	August 2018
n − n ¯ oscillations and the neutron lifetime Leontaris, George K.; Vergados, John D. Physical Review D, Vol. 99, Issue 1 https://doi.org/10.1103/physrevd.99.015010	journal	January 2019
Dark Matter Interpretation of the Neutron Decay Anomaly Fornal, Bartosz; Grinstein, Benjamín Physical Review Letters, Vol. 120, Issue 19 https://doi.org/10.1103/physrevlett.120.191801	journal	May 2018
Neutron Lifetime and Axial Coupling Connection Czarnecki, Andrzej; Marciano, William J.; Sirlin, Alberto Physical Review Letters, Vol. 120, Issue 20 https://doi.org/10.1103/physrevlett.120.202002	journal	May 2018
Testing Dark Decays of Baryons in Neutron Stars Baym, Gordon; Beck, D. H.; Geltenbort, Peter Physical Review Letters, Vol. 121, Issue 6 https://doi.org/10.1103/physrevlett.121.061801	journal	August 2018
Constraints on the Dark Matter Interpretation n → χ + e + e − of the Neutron Decay Anomaly with the PERKEO II Experiment Klopf, M.; Jericha, E.; Märkisch, B. Physical Review Letters, Vol. 122, Issue 22 https://doi.org/10.1103/physrevlett.122.222503	journal	June 2019
Neutron lifetime puzzle and neutron–mirror neutron oscillation Berezhiani, Zurab The European Physical Journal C, Vol. 79, Issue 6 https://doi.org/10.1140/epjc/s10052-019-6995-x	journal	June 2019
Matter, dark matter, and antimatter in our Universe Berezhiani, Zurab International Journal of Modern Physics A, Vol. 33, Issue 31 https://doi.org/10.1142/s0217751x18440347	journal	November 2018
Measurements of the Neutron Lifetime Wietfeldt, F. Atoms, Vol. 6, Issue 4 https://doi.org/10.3390/atoms6040070	journal	December 2018
Testing dark decays of baryons in neutron stars Baym, Gordon; Beck, D. H.; Geltenbort, Peter arXiv https://doi.org/10.48550/arxiv.1802.08282	text	January 2018

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