Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.14933 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918510676934656 |
|---|---|
| author | Dekens, Wouter de Vries, Jordy Gialidi, Lemonia Menéndez, Javier Mulder, Heleen Romeo, Beatriz |
| author_facet | Dekens, Wouter de Vries, Jordy Gialidi, Lemonia Menéndez, Javier Mulder, Heleen Romeo, Beatriz |
| contents | Electric dipole moment (EDM) measurements using paramagnetic molecules have significantly advanced over the last decade. Traditionally, these experiments have been analyzed in terms of the electron EDM. However, paramagnetic molecules are also sensitive to hadronic sources of charge-parity (CP) violation, highlighting the need for a new framework to interpret the experimental results. In this Letter, we introduce an effective field theory framework to relate molecular EDMs to the EDMs of neutrons and protons. We identify the dominant contributions through power counting and pinpoint the necessary nuclear matrix elements. As a practical application, we employ the nuclear shell model to calculate these nuclear matrix elements for the polar molecule BaF. Finally, we estimate the limits on the nucleon EDMs set by current molecular EDM experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_14933 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nucleon Electric Dipole Moments in Paramagnetic Molecules through Effective Field Theory Dekens, Wouter de Vries, Jordy Gialidi, Lemonia Menéndez, Javier Mulder, Heleen Romeo, Beatriz High Energy Physics - Phenomenology Nuclear Theory Atomic Physics Electric dipole moment (EDM) measurements using paramagnetic molecules have significantly advanced over the last decade. Traditionally, these experiments have been analyzed in terms of the electron EDM. However, paramagnetic molecules are also sensitive to hadronic sources of charge-parity (CP) violation, highlighting the need for a new framework to interpret the experimental results. In this Letter, we introduce an effective field theory framework to relate molecular EDMs to the EDMs of neutrons and protons. We identify the dominant contributions through power counting and pinpoint the necessary nuclear matrix elements. As a practical application, we employ the nuclear shell model to calculate these nuclear matrix elements for the polar molecule BaF. Finally, we estimate the limits on the nucleon EDMs set by current molecular EDM experiments. |
| title | Nucleon Electric Dipole Moments in Paramagnetic Molecules through Effective Field Theory |
| topic | High Energy Physics - Phenomenology Nuclear Theory Atomic Physics |
| url | https://arxiv.org/abs/2510.14933 |