Pion production near mid-rapidity in high-energy heavy-ion collisions

K. A. Frankel; J. A. Bistirlich; R. Bossingham; H. R. Bowman; K. M. Crowe; C. J. Martoff; D. L. Murphy; J. O. Rasmussen; J. P. Sullivan; E. Yoo; W. A. Zajc; J. P. Miller; O. Hashimoto; M. Koike; J. Péter; W. Benenson; G. M. Crawley; E. Kashy; J. A. Nolen, Jr; J. Quebert

doi:10.1103/PhysRevC.32.975

Pion production near mid-rapidity in high-energy heavy-ion collisions

K. A. Frankel, J. A. Bistirlich, R. Bossingham, H. R. Bowman, K. M. Crowe, C. J. Martoff, D. L. Murphy, J. O. Rasmussen, J. P. Sullivan, E. Yoo, W. A. Zajc, J. P. Miller, O. Hashimoto, M. Koike, J. Péter, W. Benenson, G. M. Crawley, E. Kashy, J. A. Nolen, Jr., and J. Quebert

Phys. Rev. C 32, 975 – Published 1 September 1985

Abstract

Doubly differential cross sections for producing $π^{+}$ and $π^{-}$ were measured for several target-projectile combinations. They were ${}^{40}{Ar}$ +C, Ca, and U at 1050A MeV and ${}^{20}{Ne}$ +Be and NaF at 655A MeV. The $π^{-}$ / $π^{+}$ ratios are smaller than those expected from several Coulomb effect calculations. The Ne+NaF→ $π^{-}$ data exhibit a peak at 90° in the center of mass and $p_{π}$ =0.4 $m_{π}$ c.