Abstract
Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the nucleon. Using this result, we then derive constraints on the CP-violating η(η′)ππ couplings, which define the two-pion CP-violating decays of the η and η′ mesons. Our results are relevant for the running and planned measurements of rare decays of the η and η′ mesons by the GlueX Collaboration at JLab and the LHCb Collaboration at CERN.
| Original language | English |
|---|---|
| Article number | 036022 |
| Journal | Physical Review D |
| Volume | 95 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 28 Feb 2017 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
CP -violating decays of the pseudoscalars η and η′ and their connection to the electric dipole moment of the neutron. / Gutsche, Thomas; Hiller Blin, Astrid N.; Kovalenko, Sergey; Kuleshov, Serguei; Lyubovitskij, Valery E.; Vicente Vacas, Manuel J.; Zhevlakov, Alexey.
In: Physical Review D, Vol. 95, No. 3, 036022, 28.02.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - CP -violating decays of the pseudoscalars η and η′ and their connection to the electric dipole moment of the neutron
AU - Gutsche, Thomas
AU - Hiller Blin, Astrid N.
AU - Kovalenko, Sergey
AU - Kuleshov, Serguei
AU - Lyubovitskij, Valery E.
AU - Vicente Vacas, Manuel J.
AU - Zhevlakov, Alexey
PY - 2017/2/28
Y1 - 2017/2/28
N2 - Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the nucleon. Using this result, we then derive constraints on the CP-violating η(η′)ππ couplings, which define the two-pion CP-violating decays of the η and η′ mesons. Our results are relevant for the running and planned measurements of rare decays of the η and η′ mesons by the GlueX Collaboration at JLab and the LHCb Collaboration at CERN.
AB - Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the nucleon. Using this result, we then derive constraints on the CP-violating η(η′)ππ couplings, which define the two-pion CP-violating decays of the η and η′ mesons. Our results are relevant for the running and planned measurements of rare decays of the η and η′ mesons by the GlueX Collaboration at JLab and the LHCb Collaboration at CERN.
UR - http://www.scopus.com/inward/record.url?scp=85021624432&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021624432&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.95.036022
DO - 10.1103/PhysRevD.95.036022
M3 - Article
AN - SCOPUS:85021624432
VL - 95
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 3
M1 - 036022
ER -