  We discuss the modification of the cumulants of the net baryon and net proton
distributions due to the global conservation of baryon number in heavy-ion
collisions. Corresponding probability distributions and their cumulants are
derived analytically. We show that the conservation of baryon number results in
a substantial decrease of higher order cumulants. Based on our studies, we
propose an observable that is insensitive to the modifications due to baryon
number conservation.
