@article{77851,
  author = {Vardan Khachatryan and others},
  title = {Measurement of the production cross section ratio $\sigma$(Xb2(1P)) / $\sigma$(Xb1(1P) in pp collisions at $\sqrt s $ = 8 TeV},
  year = {2015},
  journal = {Phys. Lett.},
  volume = {B743},
  pages = {383-402},
  doi = {10.1016/j.physletb.2015.02.048},
  language = {eng},
}