Rare decays involving leptons or photons in the final states are studied
using 1.0 fb^{-1} of pp collisions at a centre-of-mass energy of sqrt{s}=7TeV
collected by the LHCb experiment in 2011. We present results of measurements of
branching ratios, angular distributions, and isospin asymmetries obtained using
this data sample.Comment: 6 pages, 3 figures, Proceedings of Rencontres du Vietnam, Beyond The
Standard Model of Particle Physics, Qui Nhon, Vietnam July 15-21, 201