$B^{+}_c$ physics at LHCb

We present recent LHCb results in B+c physics with four topics. Using 3fb(−)(1) of data collected in 2011 and 2012 produced in pp collisions, a baryonic decay mode, B(+)c → J/ψpbar pπ(+), is observed for the first time. With 1fb(−)(1) of data collected in 2011, the first measurement of the relative branching ratio B(B(+)c → J/ψμ(+))/B(B(+)c → J/ψμ(+)ν(μ)) is performed. With 2fb(−)(1) of data collected in 2012, the lifetime of the B(+)c meson is measured with the semileptonic decay B(+)c → J/ψμ(+)ν(μ). Finally, evidence is presented for the decay B(+)c → J/ψ3π(+)2π(−) using pp collision data, corresponding to an integrated luminosity of 3fb(−)(1).