Decays of charged $B$-mesons into three charged leptons and a neutrino

In the framework of the Standard Model, we present predictions for partial widths, double and single differential distributions, and forward-backward lepton asymmetries for four-leptonic decays B--> mu(+)mu(-)(nu) over bar (e)e(-), B- -> e(+)e(-)(nu) over bar (mu)mu(-), B- -> mu(+)mu(-)(nu) over bar (mu)mu(-),( )and B- -> e(+)e(-)(nu) over bar (e)e(-). We consider the contributions of virtual photon emission from the light and heavy quarks of the B- meson, and we include bremsstrahlung of a virtual photon from the charged lepton in the final state. We use the model of vector meson dominance for calculation of virtual photon emission by the light quark of the and( )B(-) meson and take into account the isotopic correction. The dependence of branchings on the relative phase of the contributions of the light intermediate vector mesons is studied.