[show abstract][hide abstract] ABSTRACT: Rapidity and charge distributions have been measured for central charged
tracks in events at center-of-mass energy 63 GeV, triggered on a
π0 near 11° with transverse momentum greater than 2.25
GeV/c. The observed distributions are consistent with parton-parton
scattering models with a spin-one gluon, and inconsistent with the
exchange of a spin-zero gluon.
Physical review D: Particles and fields 02/1985; 31:976-983.
[show abstract][hide abstract] ABSTRACT: Measurements of charged particle multiplicity distributions in the central rapidity region in p-p and p-alpha, and alpha-alpha collisions are reported. They are better fitted to the ``wounded nucleon'' than to the ``gluon string'' model. The average transverse momenta, for all three reactions, are identical (and almost independent of multiplicity) up to very high multiplicities.