TY - JOUR
T1 - Constraining CP Violating Nucleon-Nucleon Long-Range Interactions in Diatomic eEDM Searches
AU - Baruch, Chaja
AU - Changala, P. Bryan
AU - Shagam, Yuval
AU - Soreq, Yotam
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP
PY - 2024/9/13
Y1 - 2024/9/13
N2 - The searches for CP violating effects in diatomic molecules, such as HfF+ and ThO, are typically interpreted as a probe of the electron's electric dipole moment (eEDM), a new electron-nucleon interaction, and a new electron-electron interaction. However, in the case of a nonvanishing nuclear spin, a new CP violating nucleon-nucleon long-range force will also affect the measurement, providing a new interpretation of the eEDM experimental results. Here, we use the HfF+ eEDM search and derive a new bound on this hypothetical interaction, which is the most stringent from terrestrial experiments in the 1 eV-10 keV mass range. These multiple new physics sources motivate independent searches in different molecular species for CP violation at low energy that result in model independent bounds, which are insensitive to cancellation among them.
AB - The searches for CP violating effects in diatomic molecules, such as HfF+ and ThO, are typically interpreted as a probe of the electron's electric dipole moment (eEDM), a new electron-nucleon interaction, and a new electron-electron interaction. However, in the case of a nonvanishing nuclear spin, a new CP violating nucleon-nucleon long-range force will also affect the measurement, providing a new interpretation of the eEDM experimental results. Here, we use the HfF+ eEDM search and derive a new bound on this hypothetical interaction, which is the most stringent from terrestrial experiments in the 1 eV-10 keV mass range. These multiple new physics sources motivate independent searches in different molecular species for CP violation at low energy that result in model independent bounds, which are insensitive to cancellation among them.
UR - http://www.scopus.com/inward/record.url?scp=85204189073&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.133.113202
DO - 10.1103/PhysRevLett.133.113202
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AN - SCOPUS:85204189073
SN - 0031-9007
VL - 133
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
M1 - 113202
ER -