A smoothed string-like braneworld in six dimensions J. C. B. Araújo, J. E. G. Silva, D. F. S. Veras and C. A. S. Almeida Eur. Phys. J. C, 75 3 (2015) 127 Published online: 17 March 2015 DOI: 10.1140/epjc/s10052-015-3350-8