Possibility of traversable wormhole formation in the dark matter halo with istropic pressure Zhaoyi Xu, Meirong Tang, Gang Cao and Shuang-Nan Zhang Eur. Phys. J. C, 80 1 (2020) 70 Published online: 29 January 2020 DOI: 10.1140/epjc/s10052-020-7636-0