Determination of the Limiting Temperature and Scaling in the Mean in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>pp</mml:mi></mml:math>Interactions

Abstract

The transverse-momentum distribution of charged pions produced in 28.5-GeV/c $\mathrm{pp}$ interactions was studied. Scaling of the transverse-momentum distribution versus the "mean" variable $\frac{{p}_{T}}{〈{p}_{T}〉}$ was observed, independent of charge multiplicity, missing mass, and energy, in the central region. From the scaling behavior of the pions, the limiting temperature was determined to be ${T}_{0}=117\ifmmode\pm\else\textpm\fi{}4$ MeV.