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We present a study of event-by-event fluctuations of transverse momentum in $\pi^{+}\p$ and $\K^{+}\p$ collisions at 250 GeV/$c$ and the corresponding PYTHIA Monte Carlo results for $\pi^{+}\p$ collisions. The dependence of $\Phi_{p_{t}}$ on event and particle variables are investigated in detail. We find that $\Phi_{p_t}$ are all negative for different average transverse momentum per event sample. The $ _N \sim N$ correlation may not be the only origin of $\Phi_{p_{t}}$.

EVENT-BY-EVENT FLUCTUATIONS OF TRANSVERSE MOMENTUM IN ELEMENTARY COLLISIONS AT 250 GEV/C