Articulo
CP-violating decays of the pseudoscalars eta and eta' and their connection to the electric dipole moment of the neutron
PHYSICAL REVIEW D
Registro en:
1150792
1150792
Autor
Gutsche, Thomas
Blin, Astrid N. Hiller
Kovalenko, Sergey
Kuleshov, Serguei
Lyubovitskij, Valery E
Vacas, Manuel J. Vicente
Zhevlakov, Alexey
Institución
Resumen
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 eta(eta') to the nucleon. Using this result, we then derive constraints on the CP-violating eta(eta')pi pi couplings, which define the two-pion CP-violating decays of the eta and eta' mesons. Our results are relevant for the running and planned measurements of rare decays of the. eta and eta' mesons by the GlueX Collaboration at JLab and the LHCb Collaboration at CERN. Regular 2015 FONDECYT FONDECYT