Current algebra associated with logarithmic conformal field theories

We propose a general framework for deriving the OPEs within a logarithmic c onformal field theory (LCFT). This naturally leads to the emergence of a lo garithmetic partner of the energy momentum tensor within an LCFT and implie s that the current algebra associated with an LCFT is expanded. We derive t his algebra for a generic LCFT and discuss some of its implications. We obs erve that two constants arise in the OPE of the energy-momentum tensor with itself. One of these is the usual central charge.