Testing the neutrality of matter by acoustic means in a spherical resonator
Open accessAbstract
Measurements to test the neutrality of matter by acoustic means are reported. The apparatus is based on a spherical capacitor filled with gaseous SF${}_{6}$ excited by an oscillating electric field. The apparatus has been calibrated measuring the electric polarizability. Assuming charge conservation in the $\ensuremath{\beta}$ decay of the neutron, the experiment gives a limit of ${\ensuremath{\epsilon}}_{\mathrm{p}\ensuremath{-}\mathrm{e}}\ensuremath{\lesssim}1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}21}$ for the electron-proton charge difference, the same limit holding for the charge of the neutron. Previous measurements are critically reviewed and found to be inaccurate.
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The above constraint on y is consistent with the result obtained in lab experiments if λ_A ∼ d_H ∼ 10^28 cm.
“The above constraint on the value of y is consistent with the result obtained in lab experiments if we take λ A ∼ d H ∼ 10 28 cm [31].”
From Electrodynamics on cosmological scales (2016) · cites this paper as [31]
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Electrodynamics on cosmological scales
Li, L.-X. (2016) · General Relativity and Gravitation · doi:10.1007/s10714-016-2028-3 · Cited by 5 · see citing works
- Authors
- Bressi, G., Carugno, G., Della Valle, F., Galeazzi, G., Ruoso, G., & Sartori, G.
- Affiliations
- Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT)
- ORCID
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2011-05-02
- Volume
- 83
- Issue
- 5
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W1976970094
- Cited by
- 51
- References
- 0
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 1 · 2023: 2 · 2022: 6 · 2021: 4 · 2020: 7 · 2019: 2 · 2018: 4 · 2017: 1 · 2016: 5 · 2015: 7 · 2014: 5 · 2013: 1
- FWCI
- 1.04
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- ArTS Archivio della ricerca di Trieste (University of Trieste https://www.units.it/) (submittedVersion)
- Use Siena air (University of Siena) (submittedVersion)
- Padua Research Archive (University of Padova) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Subatomic Physics Research
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Particle physics theoretical and experimental studies
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Molecular Physics
- Keywords
- acoustic measurement, spherical resonator, spherical capacitor, sulfur hexafluoride, electric polarizability, charge conservation, beta decay, CP violation
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