Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions
We discuss constraints on soft CP-violating couplings of axion-like particles with photon and fermions by using data on electric dipole moments of standard model particles. In particular, for the axion-like particle (ALP) leptophilic scenario, we derive bounds on CP-odd ALP-photon-photon coupling fr...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Particles |
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| Online Access: | https://www.mdpi.com/2571-712X/3/4/47 |
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| author | Dmitri V. Kirpichnikov Valery E. Lyubovitskij Alexey S. Zhevlakov |
| author_facet | Dmitri V. Kirpichnikov Valery E. Lyubovitskij Alexey S. Zhevlakov |
| author_sort | Dmitri V. Kirpichnikov |
| collection | DOAJ |
| description | We discuss constraints on soft CP-violating couplings of axion-like particles with photon and fermions by using data on electric dipole moments of standard model particles. In particular, for the axion-like particle (ALP) leptophilic scenario, we derive bounds on CP-odd ALP-photon-photon coupling from data of the ACME collaboration on electron EDM. We also discuss prospects of the storage ring experiment to constrain the ALP–photon–photon coupling from data on proton EDM for the simplified hadrophilic interactions of ALP. The resulting constraints from experimental bounds on the muon and neutron EDMs are weak. We set constraint on the CP-odd ALP coupling with electron and derive bounds on combinations of coupling constants, which involve soft CP-violating terms. |
| first_indexed | 2024-03-10T14:02:20Z |
| format | Article |
| id | doaj.art-c23c9062ae7c4d828c788c0dc5668e30 |
| institution | Directory Open Access Journal |
| issn | 2571-712X |
| language | English |
| last_indexed | 2024-03-10T14:02:20Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Particles |
| spelling | doaj.art-c23c9062ae7c4d828c788c0dc5668e302023-11-21T01:01:12ZengMDPI AGParticles2571-712X2020-12-013471972810.3390/particles3040047Constraints on CP-Odd ALP Couplings from EDM Limits of FermionsDmitri V. Kirpichnikov0Valery E. Lyubovitskij1Alexey S. Zhevlakov2Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, RussiaInstitut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, GermanyDepartment of Physics, Tomsk State University, 634050 Tomsk, RussiaWe discuss constraints on soft CP-violating couplings of axion-like particles with photon and fermions by using data on electric dipole moments of standard model particles. In particular, for the axion-like particle (ALP) leptophilic scenario, we derive bounds on CP-odd ALP-photon-photon coupling from data of the ACME collaboration on electron EDM. We also discuss prospects of the storage ring experiment to constrain the ALP–photon–photon coupling from data on proton EDM for the simplified hadrophilic interactions of ALP. The resulting constraints from experimental bounds on the muon and neutron EDMs are weak. We set constraint on the CP-odd ALP coupling with electron and derive bounds on combinations of coupling constants, which involve soft CP-violating terms.https://www.mdpi.com/2571-712X/3/4/47dark matterhidden particlesaxion-like particleselectric dipole momentCP violation |
| spellingShingle | Dmitri V. Kirpichnikov Valery E. Lyubovitskij Alexey S. Zhevlakov Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions Particles dark matter hidden particles axion-like particles electric dipole moment CP violation |
| title | Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions |
| title_full | Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions |
| title_fullStr | Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions |
| title_full_unstemmed | Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions |
| title_short | Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions |
| title_sort | constraints on cp odd alp couplings from edm limits of fermions |
| topic | dark matter hidden particles axion-like particles electric dipole moment CP violation |
| url | https://www.mdpi.com/2571-712X/3/4/47 |
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