New Results on the Meson at the Tevatron

We present recent results on meson from the Tevatron. The meson has been observed in semileptonic decays, , both by CDF and DØ experiments at a significance larger than 5σ. The DØ experiment has used the candidates in decay to extract the mass and lifetime of meson. The CDF experiment has used both electron and muon channel candidates in decays to measure the relative production times branching ratio with respect to decay and also measured the lifetime of meson in electron channel as . The CDF experiment has also observed decay with a significance exceeding 6.5σ and has measured the mass of meson as .