Multiplicity dependence of the transverse-momentum spectrum for centrally produced hadrons in antiproton-proton collisions at<i>√s =1.8</i>TeV

The transverse momentum of charged particles produced within the pseudorapidity range \ensuremath{\eta}=-0.36 to +1.0 has been measured in p\ifmmode\bar\else\textasciimacron\fi{}p collisions at \ensuremath{\surd}s =1.8 TeV. The charged-particle multiplicity of each event was measured with a 240-element cylindrical hodoscope system covering the range -3.25&lt;\ensuremath{\eta}&lt;3.25. The average transverse momentum as a function of the average charged-particle density per unit of pseudorapidity is presented. Events are observed with average charged-particle density as high as 32 per unit of pseudorapidity.