scholarly journals Search for explanation of the neutron lifetime anomaly

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
A. P. Serebrov ◽  
M. E. Chaikovskii ◽  
G. N. Klyushnikov ◽  
O. M. Zherebtsov ◽  
A. V. Chechkin
Keyword(s):  
Neutron Lifetime

scholarly journals Space-based measurement of the neutron lifetime using data from the neutron spectrometer on NASA's MESSENGER mission

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Jack T. Wilson ◽  
David J. Lawrence ◽  
Patrick N. Peplowski ◽  
Vincent R. Eke ◽  
Jacob A. Kegerreis
Keyword(s):  
Neutron Lifetime ◽  
Neutron Spectrometer ◽  
Using Data

Magnetic storage of UCN for a measurement of the neutron lifetime

2009 ◽  
Vol 611 (2-3) ◽  
pp. 167-170 ◽  
Author(s):  
V.F. Ezhov ◽  
A.Z. Andreev ◽  
G. Ban ◽  
B.A. Bazarov ◽  
P. Geltenbort ◽  
...  
Keyword(s):  
Magnetic Storage ◽  
Neutron Lifetime

Neutron tunneling and neutron lifetime in a NiVNi Fabry-Perot thin film resonator

1996 ◽  
Vol 223 (3) ◽  
pp. 145-148 ◽  
Author(s):  
M. Mâaza ◽  
B. Pardo ◽  
J.P. Chauvineau ◽  
A. Raynal ◽  
A. Menelle ◽  
...  
Keyword(s):  
Thin Film ◽  
Neutron Lifetime ◽  
Fabry Perot

Resolving the neutron lifetime puzzle

Science ◽  
2018 ◽  
Vol 360 (6389) ◽  
pp. 605-606 ◽  
Author(s):  
Pieter Mumm
Keyword(s):  
Neutron Lifetime

scholarly journals A meta-analysis of neutron lifetime measurements

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Ashwani Rajan ◽  
Shantanu Desai
Keyword(s):  
Gaussian Distribution ◽  
Meta Analysis ◽  
Cauchy Distribution ◽  
Neutron Lifetime ◽  
Weighted Mean ◽  
Lifetime Measurements ◽  
Median Estimate ◽  
Error Distributions ◽  
Student’S T ◽  
Data Group

Abstract We calculate the median as well as weighted mean central estimates for the neutron lifetime from a subset of measurements compiled in the 2019 update of the Particle Data Group (PDG). We then reconstruct the error distributions for the residuals using three different central estimates and then check for consistency with a Gaussian distribution. We find that although the error distributions using the weighted mean as well as median estimate are consistent with a Gaussian distribution, the Student’s $t$ and Cauchy distribution provide a better fit. This median statistic estimate of the neutron lifetime from these measurements is given by $881.5 \pm 0.47$ seconds. This can be used as an alternate estimate of the neutron lifetime. We also note that the discrepancy between beam and bottle-based measurements using median statistics of the neutron lifetime persists with a significance between 4 $\sigma$ and 8 $\sigma$, depending on which combination of measurements is used.

scholarly journals Neutron lifetime measurement with the big gravitational trap for ultracold neutrons. Current state and future prospects.

2019 ◽  
Vol 1390 ◽  
pp. 012136
Author(s):  
A P Serebrov ◽  
E A Kolomensky ◽  
A K Fomin ◽  
I A Krasnoschekova ◽  
A V Vassiljev ◽  
...  
Keyword(s):  
Lifetime Measurement ◽  
Ultracold Neutrons ◽  
Future Prospects ◽  
Neutron Lifetime ◽  
Current State
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