Lorentz-violating Yang–Mills theory: discussing the Chern–Simons-like term generation Tiago R. S. Santos and Rodrigo F. Sobreiro Eur. Phys. J. C, 77 12 (2017) 903 Published online: 23 December 2017 DOI: 10.1140/epjc/s10052-017-5472-7