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Author  |
Ardu, M.; Davidson, S.; Valori, N. |
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Title |
Left-handed physics is not right for leptonic EDMs |
Type |
Journal Article |
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Year |
2025 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
85 |
Issue |
11 |
Pages |
1323 - 12pp |
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Abstract |
Heavy New Physics models with lepton flavour-changing interactions are motivated by neutrino masses, and generically induce dipole interactions for leptons, which can be flavour-changing (lj→liγ) or flavour-diagonal (magnetic and electric dipole moments(edms)). We focus on models with complex couplings, and where the singlet Standard Model leptons ({eiR}) do not interact with the New Physics. In such models, edms are calculated to arise at two loops, despite that complex amplitudes for lj→liγ appear at one loop. We explore whether the extra loop suppression of edms survives flavour basis rotations that could be induced by flavour-changing NP contributions to the charged lepton mass matrix. We show that one-loop edms vanish in both the mass and Yukawa eigenstate bases. |
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Address |
[Ardu, Marco; Valori, Nicola] Univ Valencia, Edificio Inst Invest, Inst Fis Corpuscular, C Catedrat Jose Beltran 2, Paterna 46980, Spain, Email: marco.ardu@ific.uv.es; |
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Publisher |
Springer |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
1434-6044 |
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Notes |
WOS:001617359500003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6941 |
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