Measuring the nuclear magnetic quadrupole moment in heavy polar molecules
Theories that extend the Standard Model of particle physics often introduce new interactions that violate charge-parity (CP) symmetry. Charge-parity-violating effects within an atomic nucleus can be probed by measuring its nuclear magnetic quadrupole moment (MQM). The sensitivity of such a measureme...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1086980/full |
| _version_ | 1797935947145281536 |
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| author | C. J. Ho J. Lim B. E. Sauer M. R. Tarbutt |
| author_facet | C. J. Ho J. Lim B. E. Sauer M. R. Tarbutt |
| author_sort | C. J. Ho |
| collection | DOAJ |
| description | Theories that extend the Standard Model of particle physics often introduce new interactions that violate charge-parity (CP) symmetry. Charge-parity-violating effects within an atomic nucleus can be probed by measuring its nuclear magnetic quadrupole moment (MQM). The sensitivity of such a measurement is enhanced when using a heavy polar molecule containing a nucleus with quadrupole deformation. We determine how the energy levels of a molecule are shifted by the magnetic quadrupole moment and how those shifts can be measured. The measurement scheme requires molecules in a superposition of magnetic sub-levels that differ by many units of angular momentum. We develop a generic scheme for preparing these states. Finally, we consider the sensitivity that can be reached, showing that this method can reduce the current uncertainties on several charge-parity-violating parameters. |
| first_indexed | 2024-04-10T18:22:04Z |
| format | Article |
| id | doaj.art-32ece5f9421b4c689b571c85b2cf035f |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-10T18:22:04Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-32ece5f9421b4c689b571c85b2cf035f2023-02-02T07:05:55ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-02-011110.3389/fphy.2023.10869801086980Measuring the nuclear magnetic quadrupole moment in heavy polar moleculesC. J. HoJ. LimB. E. SauerM. R. TarbuttTheories that extend the Standard Model of particle physics often introduce new interactions that violate charge-parity (CP) symmetry. Charge-parity-violating effects within an atomic nucleus can be probed by measuring its nuclear magnetic quadrupole moment (MQM). The sensitivity of such a measurement is enhanced when using a heavy polar molecule containing a nucleus with quadrupole deformation. We determine how the energy levels of a molecule are shifted by the magnetic quadrupole moment and how those shifts can be measured. The measurement scheme requires molecules in a superposition of magnetic sub-levels that differ by many units of angular momentum. We develop a generic scheme for preparing these states. Finally, we consider the sensitivity that can be reached, showing that this method can reduce the current uncertainties on several charge-parity-violating parameters.https://www.frontiersin.org/articles/10.3389/fphy.2023.1086980/fullnuclear magnetic quadrupole momentCP-violation experimentlow energy tests of fundamental physicsbeyond standard modelfundamental physics with molecules |
| spellingShingle | C. J. Ho J. Lim B. E. Sauer M. R. Tarbutt Measuring the nuclear magnetic quadrupole moment in heavy polar molecules Frontiers in Physics nuclear magnetic quadrupole moment CP-violation experiment low energy tests of fundamental physics beyond standard model fundamental physics with molecules |
| title | Measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| title_full | Measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| title_fullStr | Measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| title_full_unstemmed | Measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| title_short | Measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| title_sort | measuring the nuclear magnetic quadrupole moment in heavy polar molecules |
| topic | nuclear magnetic quadrupole moment CP-violation experiment low energy tests of fundamental physics beyond standard model fundamental physics with molecules |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1086980/full |
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