Study of the finite temperature transition in 3-flavor QCD

We study the finite temperature transition in QCD with three flavors of equal masses using the R and RHMC algorithms on lattices with temporal extent N{sub {tau}}=4 and 6. For the transition temperature in the continuum limit we find r{sub 0}T{sub c}=0.429(8) for the light pseudoscalar mass corresponding to the endpoint of the 1st order transition region. When comparing the results obtained with the R and RHMC algorithms for p4fat3 action we see no significant step-size errors down to a lightest pseudoscalar mass of m{sub ps}r{sub 0}=0.4.