MFV approach to robust estimate of neutron lifetime
Abstract Aiming at evaluating the lifetime of the neutron, we introduce a novel statistical method to analyse the updated compilation of precise measurements including the 2022 dataset of Particle Data Group (PDG). Based on the minimization for the information loss principle, unlike the median stati...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-022-11071-9 |
| _version_ | 1797863769473286144 |
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| author | Jiang Zhang Sen Zhang Zhen-Rong Zhang Pu Zhang Wen-Bin Li Yan Hong |
| author_facet | Jiang Zhang Sen Zhang Zhen-Rong Zhang Pu Zhang Wen-Bin Li Yan Hong |
| author_sort | Jiang Zhang |
| collection | DOAJ |
| description | Abstract Aiming at evaluating the lifetime of the neutron, we introduce a novel statistical method to analyse the updated compilation of precise measurements including the 2022 dataset of Particle Data Group (PDG). Based on the minimization for the information loss principle, unlike the median statistics method, we apply the most frequent value (MFV) procedure to estimate the neutron lifetime, irrespective of the Gaussian or non-Gaussian distributions. Providing a more robust way, the calculated result of the MFV is $$\tau _n=881.16^{+2.25}_{-2.35}$$ τ n = 881 . 16 - 2.35 + 2.25 s with statistical bootstrap errors, while the result of median statistics is $$\tau _n=881.5^{+5.5}_{-3}$$ τ n = 881 . 5 - 3 + 5.5 s according to the binomial distribution. Using the different central estimates, we also construct the error distributions of neutron lifetime measurements and find the non-Gaussianity, which is still meaningful. |
| first_indexed | 2024-04-09T22:40:57Z |
| format | Article |
| id | doaj.art-ddf9eb01375b4e50bb316125f8762cc0 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-09T22:40:57Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-ddf9eb01375b4e50bb316125f8762cc02023-03-22T12:11:43ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-12-01821211210.1140/epjc/s10052-022-11071-9MFV approach to robust estimate of neutron lifetimeJiang Zhang0Sen Zhang1Zhen-Rong Zhang2Pu Zhang3Wen-Bin Li4Yan Hong5Physics Experimental Center, Department of Mathematics and Physics, Hebei GEO UniversityPhysics Experimental Center, Department of Mathematics and Physics, Hebei GEO UniversitySchool of Basic Sciences, Tianjin Agricultural UniversityPhysics Experimental Center, Department of Mathematics and Physics, Hebei GEO UniversityPhysics Experimental Center, Department of Mathematics and Physics, Hebei GEO UniversityPhysics Experimental Center, Department of Mathematics and Physics, Hebei GEO UniversityAbstract Aiming at evaluating the lifetime of the neutron, we introduce a novel statistical method to analyse the updated compilation of precise measurements including the 2022 dataset of Particle Data Group (PDG). Based on the minimization for the information loss principle, unlike the median statistics method, we apply the most frequent value (MFV) procedure to estimate the neutron lifetime, irrespective of the Gaussian or non-Gaussian distributions. Providing a more robust way, the calculated result of the MFV is $$\tau _n=881.16^{+2.25}_{-2.35}$$ τ n = 881 . 16 - 2.35 + 2.25 s with statistical bootstrap errors, while the result of median statistics is $$\tau _n=881.5^{+5.5}_{-3}$$ τ n = 881 . 5 - 3 + 5.5 s according to the binomial distribution. Using the different central estimates, we also construct the error distributions of neutron lifetime measurements and find the non-Gaussianity, which is still meaningful.https://doi.org/10.1140/epjc/s10052-022-11071-9 |
| spellingShingle | Jiang Zhang Sen Zhang Zhen-Rong Zhang Pu Zhang Wen-Bin Li Yan Hong MFV approach to robust estimate of neutron lifetime European Physical Journal C: Particles and Fields |
| title | MFV approach to robust estimate of neutron lifetime |
| title_full | MFV approach to robust estimate of neutron lifetime |
| title_fullStr | MFV approach to robust estimate of neutron lifetime |
| title_full_unstemmed | MFV approach to robust estimate of neutron lifetime |
| title_short | MFV approach to robust estimate of neutron lifetime |
| title_sort | mfv approach to robust estimate of neutron lifetime |
| url | https://doi.org/10.1140/epjc/s10052-022-11071-9 |
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