TauDecay: a library to simulate polarized tau decays via FeynRules and MadGraph5 Kaoru Hagiwara, Tong Li, Kentarou Mawatari and Junya Nakamura Eur. Phys. J. C, 73 7 (2013) 2489 Published online: 12 July 2013 DOI: 10.1140/epjc/s10052-013-2489-4