Abstract
The HELIOS experiment has measured inclusivep ⊥ spectra of negative particles in the rapidity region 1.0<y<1.9. The general shape of thep ⊥ spectra in p +W, O+W and S+W is similar, but cannot be described by a single exponential. Compared to p+p collisions, an excess is observed for low and highp ⊥. This effect increases with the projectile mass. Except for very lowE ⊥, the average transverse momentum <p ⊥> is found to be approximately constant up to the highest accessible values ofE ⊥.
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HELIOS Collaboration., Åkesson, T., Almehed, S. et al. Inclusive negative particlep ⊥ spectra in p-nucleus and nucleus-nucleus collisions at 200 GeV per nucleon. Z. Phys. C - Particles and Fields 46, 361–367 (1990). https://doi.org/10.1007/BF01621023
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DOI: https://doi.org/10.1007/BF01621023