MIAMI — The nation’s No. 2 cigarette maker is vowing to fight a jury verdict of $23.6 billion in punitive damages in a lawsuit filed by the widow of a longtime smoker who died of lung cancer. R.J. Reynolds Tobacco Co. executive J. Jeffery Raborn has called the damages awarded by a Pensacola jury “grossly excessive and impermissible under state and constitutional law.” “This verdict goes far beyond the realm of reasonableness and fairness and is completely inconsistent with the evidence …