@article{Bartolini:230811,
title = {Neutron Electric Dipole Moment from Gauge-String Duality},
author = {Bartolini, Lorenzo and Bigazzi, Francesco and Bolognesi, Stefano and Cotrone, Aldo L. and Manenti, Andrea},
publisher = {Amer Physical Soc},
journal = {Physical Review Letters},
address = {College Pk},
number = {9},
volume = {118},
pages = {5. 091601},
year = {2017},
abstract = {We compute the electric dipole moment of nucleons in the large N-c QCD model by Witten, Sakai, and Sugimoto with N-f = 2 degenerate massive flavors. Baryons in the model are instantonic solitons of an effective five-dimensional action describing the whole tower of mesonic fields. We find that the dipole electromagnetic form factor of the nucleons, induced by a finite topological. angle, exhibits complete vector meson dominance. We are able to evaluate the contribution of each vector meson to the final result a small number of modes are relevant to obtain an accurate estimate. Extrapolating the model parameters to real QCD data, the neutron electric dipole moment is evaluated to be d(n) = 1.8 x 10(-16)theta e cm. The electric dipole moment of the proton is exactly the opposite.},
url = {http://infoscience.epfl.ch/record/230811},
doi = {10.1103/PhysRevLett.118.091601},
}