Correlations at large transverse momenta

Abstract

After a brief discussion of the failure of the constituent-interchange model (CIM) to account for recent experimental data on large-${q}_{T}$ correlations, a hadronic-bremsstrahlung model is introduced. We analyze the structure of the large-${q}_{T}$ events, we present calculations of the correlation coefficients for $p+p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}+X$ when the two ${\ensuremath{\pi}}^{0}'\mathrm{s}$ are produced at 90\ifmmode^\circ\else\textdegree\fi{} with respect to the colliding proton either in opposite directions or in the same direction, and we compare with the data and with the predictions of the CIM. Further predictions of the models and simple experimental tests are pointed out.