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Electric dipole moments from CP-violating scalar leptoquark interactions

Fuyuto, Kaori and Ramsey-Musolf, Michael and Shen, Tianyang (2019) Electric dipole moments from CP-violating scalar leptoquark interactions. Physics Letters B, 788 . pp. 52-57. ISSN 0370-2693. doi:10.1016/j.physletb.2018.11.016.

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We analyze the implications of CP-violating scalar leptoquark (LQ) interactions for experimental probes of parity- and time-reversal violating properties of polar molecules. These systems are predominantly sensitive to the electric dipole moment (EDM) of the electron and nuclear-spin-independent (NSID) electron–nucleon interaction. The LQ model can generate both a tree-level NSID interaction as well as the electron EDM at one-loop order. Including both interactions, we find that the NSID interaction can dominate the molecular response. For moderate values of couplings, the current experimental results give roughly two orders of magnitude stronger limits on the electron EDM than one would otherwise infer from a sole-source analysis.

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URLURL TypeDescription Paper
Ramsey-Musolf, Michael0000-0001-8110-2479
Additional Information:© 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP3. Received 21 April 2018, Revised 13 October 2018, Accepted 12 November 2018, Available online 22 November 2018. We are grateful to Timothy Chupp for useful discussions and Vincenzo Cirigliano for detailed analytic results on the leptoquark interactions. KF thanks Hao-Lin Li, Hiren Patel and Jiang-Hao Yu for several helpful conversations. This work was supported in part under U.S. Department of Energy contract DE-SC0011095.
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Department of Energy (DOE)DE-SC0011095
Record Number:CaltechAUTHORS:20181126-082045545
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Official Citation:Kaori Fuyuto, Michael Ramsey-Musolf, Tianyang Shen, Electric dipole moments from CP-violating scalar leptoquark interactions, Physics Letters B, Volume 788, 2019, Pages 52-57, ISSN 0370-2693, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91147
Deposited By: Tony Diaz
Deposited On:26 Nov 2018 17:45
Last Modified:16 Nov 2021 03:38

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