Physical Review Letters ( IF 8.385 ) Pub Date : 2021-02-22 , DOI: 10.1103/physrevlett.126.081801
Stefano Bertolini; Luca Di Luzio; Fabrizio Nesti

We compute the $CP$-violating scalar axion coupling to nucleons in the framework of baryon chiral perturbation theory and we apply the results to the case of left-right symmetry. The correlated constraints with other $CP$-violating observables show that the predicted axion nucleon coupling is within the reach of present axion-mediated force experiments for ${M}_{{W}_{R}}$ up to 1000 TeV.

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