Is collective pion flow anticorrelated to nucleon flow?


Journal Article

The in-plane transverse momentum of pions in Ne(2A GeV)Pb and Au(2A GeV)Au collisions is analysed in the framework of the Vlasov-Uehling-Uhlenbeck model. The rapidity dependence of pion flow shows the opposite sign as the nucleon flow. The anticorrelation of pions and nucleons can be explained by multiple πN scattering. It turns out that the nonzero transverse momentum for pions at target rapidities is no proof for pion absorption in contrast to claims in previous works. Pion absorption does not influence the angular distribution of pions but plays an important role for the absolute numbers of produced pions. © 1993.

Full Text

Duke Authors

Cited Authors

  • Bass, SA; Mattiello, R; Stöcker, H; Greiner, W; Hartnack, C

Published Date

  • April 1, 1993

Published In

Volume / Issue

  • 302 / 4

Start / End Page

  • 381 - 385

International Standard Serial Number (ISSN)

  • 0370-2693

Digital Object Identifier (DOI)

  • 10.1016/0370-2693(93)90413-C

Citation Source

  • Scopus