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Isospin dependence of relative yields of K^+ and K^0 mesons at 1.528A GeV


Lopez, X.; Kim, Y. J.; Herrmann, N.; Andronic, A.; Barret, V.; Basrak, Zoran; Bastid, N.; Benabderrahmane, M. L.; Čaplar, Roman; Cordier, E. et al.
Isospin dependence of relative yields of K^+ and K^0 mesons at 1.528A GeV // Physical Review C - Nuclear Physics, 75 (2007), 1; 011901-5 (međunarodna recenzija, članak, znanstveni)


Naslov
Isospin dependence of relative yields of K^+ and K^0 mesons at 1.528A GeV

Autori
Lopez, X. ; Kim, Y. J. ; Herrmann, N. ; Andronic, A. ; Barret, V. ; Basrak, Zoran ; Bastid, N. ; Benabderrahmane, M. L. ; Čaplar, Roman ; Cordier, E. ; Crochet, P. ; Dupieux, P. ; Dželalija, Mile ; Fodor, Z. ; Gašparić, Igor ; Grishkin, Y. ; Hartmann, O. N. ; Hildenbrand, K. D. ; Hong, B. ; Kang, T. I. ; Kecskemeti, J. ; Kirejczyk, M. ; Kiš, Mladen ; Koczon, P. ; Korolija, Milorad ; Kotte, R. ; Lebedev, A. ; Leifels, Y. ; Merschmeyer, M. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; Reisdorf, W. ; Ryu, M. S. ; Schuttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczynska, K. ; Smolyankin, V. ; Stoicea, G. ; Tyminski, Z. ; Wagner, P. ; Wi´sniewski, K. ; Wohlfarth, D. ; Xiao, Z. G. ; Yushmanov, I. ; Zhang, X. Y. ; Zhilin, A. ; Ferini, G. ; Gaitanos, T.

Izvornik
Physical Review C - Nuclear Physics (0556-2813) 75 (2007), 1; 011901-5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Heavy ions; kaons; strangeness; isospin; 1.5 AGeV

Sažetak
Results on K+ and K0 meson production in 96 44Ru + 96 44Ru and 96 40Zr + 96 40Zr collisions at a beam kinetic energy of 1.528A GeV, measured with the FOPI detector at GSI-Darmstadt, are investigated as a possible probe of isospin effects in high-density nuclear matter. The measured double ratio (K+/K0)Ru/(K+/K0)Zr is compared to the predictions of a thermal model and a relativistic mean field transport model using two different collision scenarios and under different assumptions on the stiffness of the symmetry energy.We find good agreement with the thermal model prediction and the assumption of a soft symmetry energy for infinite nuclear matter, while more realistic transport simulations of the collisions show a similar agreement with the data but also exhibit a reduced sensitivity to the symmetry term.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-1191005-2879 - Fizika teških iona (Zoran Basrak, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus