Generate pp > tau nu with up to two jets with and without LQ t-channel contribution and study how the transverse mass t_had-Etmiss distribution is affected by the t-channel exchange of leptoquarks. See if the request of a b-jet and/or angular variables help to bring out the BSM contribution **Interested people:** * Giacomo Polesello * Priscilla Pani * David Marzocca