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| Format: | Preprint |
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2024
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| Online Access: | https://arxiv.org/abs/2410.13670 |
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| _version_ | 1866917806901035008 |
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| author | Marc, Aurélien Fleig, Timo |
| author_facet | Marc, Aurélien Fleig, Timo |
| contents | We present a systematic study of the nucleon-electron tensor-pseudotensor (Ne-TPT) interaction in candidate molecules for next-generation experimental searches for new sources of charge-parity violation. The considered molecules are all amenable to assembly from laser-cooled atoms, with the francium-silver (FrAg) molecule previously shown to be the most sensitive to the Schiff moment interaction in this set. Interelectron correlation effects are treated through relativistic general-excitation-rank configuration-interaction theory in the framework of the Dirac-Coulomb Hamiltonian. We find in FrAg the Ne-TPT interaction constant to be $W_T({\text{Fr}}) = 2.58 \pm 0.21 [\left<Σ\right>_A \mathrm{kHz}]$, considering the Francium atom as target of the measurement. Taking into account nuclear structure in a multi-source interpretation of a measured electric dipole moment, FrAg is found to be an excellent probe of physics beyond the Standard Model as this system will in addition to its sizeable Ne-TPT interaction constant greatly constrain fundamental parameters such as the quantum-chromo-dynamic $\barθ$ or the semileptonic four-fermion interaction $C_{lequ}$ from which nuclear and atomic ${\cal{CP}}$-violating properties arise. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_13670 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Semi-Hadronic Charge-Parity Violation Interaction Constants in CsAg, FrLi and FrAg molecules Marc, Aurélien Fleig, Timo Atomic Physics High Energy Physics - Phenomenology Quantum Physics We present a systematic study of the nucleon-electron tensor-pseudotensor (Ne-TPT) interaction in candidate molecules for next-generation experimental searches for new sources of charge-parity violation. The considered molecules are all amenable to assembly from laser-cooled atoms, with the francium-silver (FrAg) molecule previously shown to be the most sensitive to the Schiff moment interaction in this set. Interelectron correlation effects are treated through relativistic general-excitation-rank configuration-interaction theory in the framework of the Dirac-Coulomb Hamiltonian. We find in FrAg the Ne-TPT interaction constant to be $W_T({\text{Fr}}) = 2.58 \pm 0.21 [\left<Σ\right>_A \mathrm{kHz}]$, considering the Francium atom as target of the measurement. Taking into account nuclear structure in a multi-source interpretation of a measured electric dipole moment, FrAg is found to be an excellent probe of physics beyond the Standard Model as this system will in addition to its sizeable Ne-TPT interaction constant greatly constrain fundamental parameters such as the quantum-chromo-dynamic $\barθ$ or the semileptonic four-fermion interaction $C_{lequ}$ from which nuclear and atomic ${\cal{CP}}$-violating properties arise. |
| title | Semi-Hadronic Charge-Parity Violation Interaction Constants in CsAg, FrLi and FrAg molecules |
| topic | Atomic Physics High Energy Physics - Phenomenology Quantum Physics |
| url | https://arxiv.org/abs/2410.13670 |