Charged pion production in 96^44_Ru+96^44_Ru+ collisions at 400 A and 1528 A MeV (CROSBI ID 116688)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Hong, B. ; Kim, Y.J. ; Herrmann, N. ; Stockmeier, M.R. ; Andronic, A. ; Barret, V. ; Basrak, Zoran ; Bastid, N. ; Benabderrahmane, M.L. ; Čaplar, Roman ; Crochet, P. ; Dupieux, M. ; Dželalija, Mile ; Fodor, Z. ; Gobbi, A. ; Grishkin, Y. ; Hartmann, O.N. ; Hildenbrand, K.D. ; Kecskemeti, J. ; Kirejczyk, M. ; Koczon, P. ; Korolija, Milorad ; Kotte, R. ; Kress, T. ; Lebedev, A. ; Leifels, Y. ; Lopez, X. ; Mangiarotti, A. ; Merschmeyer, M. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; Reisdorf, W. ; Schuettauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K.S. ; Simion, V. ; Siwek-Wilczynska, K. ; Smolyankin, V. ; Stoicea, G. ; Tyminski, Z. ; Wagner, P. ; Wisniewski, K. ; Wohlfarth, D. ; Xiao, Z.G. ; Yushmanov, Y. ; Zhilin, A.
engleski
Charged pion production in 96^44_Ru+96^44_Ru+ collisions at 400 A and 1528 A MeV
We present transverse momentum and rapidity spectra of charged pions in central Ru+Ru collisions at 400A and 1528A MeV. The data exhibit enhanced production at low transverse momenta compared to expectations from a thermal model that includes the decay of (1232) resonances and thermal pions. Modifications of the spectral function and the Coulomb interaction are necessary to describe the detailed shape of the transverse momentum spectra. Within the framework of the thermal model, the freeze-out radii of pions are similar at both beam energies. The isospin quantum molecular dynamics model reproduces the shapes of the transverse momentum and rapidity spectra of pions, but the predicted absolute yields are larger than in the measurements, especially at lower beam energy.
pion production; heavy-ion collisions; thermal model; QMD model
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
