JET SHAPES IN EP AND P(P)OVER-BAR COLLISIONS IN NLO QCD

We calculate jet shapes in low Q(2) ep and p (p) over bar collisions i n perturbation theory at order alpha(s)(3) for the hard parton-parton processes. For the gamma p process, resolved and direct contributions are superimposed. The dependence of the jet shapes on transverse energ y, rapidity, and inner cone extension is studied. The numerical result s of the calculation are compared with recent data from ZEUS at DESY H ERA and from CDF and D0 at the Fermilab Tevatron. Good agreement is ac hieved if the problem of merging overlapping jets is taken into accoun t by varying the parameter R-sep as a function of transverse energy an d rapidity.