Study of High-Transverse-Momentumπ0Pairs Produced at the CERN Intersecting Storage Rings
C. Kourkoumelis,L. K. Resvanis,T. A. Filippas,E. Fokitis,A. M. Cnops,S. Iwata,R. B. Palmer,D. C. Rahm,P. Rehak,I. Stumer,C. W. Fabjan,T. Fields,D. Lissauer,I. Mannelli,P. Mouzourakis,A. Nappi,W. J. Willis,M. Goldberg,N. Horwitz,G. C. Moneti;C. Kourkoumelis;L. K. Resvanis;T. A. Filippas;E. Fokitis;A. M. Cnops;S. Iwata;R. B. Palmer;D. C. Rahm;P. Rehak;I. Stumer;C. W. Fabjan;T. Fields;D. Lissauer;I. Mannelli;P. Mouzourakis;A. Nappi;W. J. Willis;M. Goldberg;N. Horwitz;G. C. Moneti;
physical review letters1980Vol. 45pp. 966-969
152
moneti1980physicalstudy
Abstract
Correlations of two π0 mesons with transverse momenta pT up to 13 GeV/c have been measured with large azimuthal acceptance. Results for cross sections, pout, and z distributions are compared in detail with models based on two-constituent scattering and fragmentation. The width of the constituent transverse-momentum Gaussian distribution would have to be doubled to match that from experiments with pT below 5 GeV/c. A more likely explanation is the presence of processes with more than two constituents in the final state.