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Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement

Alt, C. ; Blume, C. ; Dinkelaker, P. ; Flierl, D. ; Kliemant, M. ; Kniege, S. ; Kollegger, T. ; Lungwitz, B. ; Mitrovski, M. ; Renfordt, R. ; Schuster, T. ; Stock, R. ; Strabel, C. ; Stroebele, H. ; Wetzler, A. ; Anticic, T. ; Kadija, K. ; Nicolic, V. ; Susa, T. ; Baatar, B.

Physical review. C, Nuclear physics, 2008-02, Vol.77 (2)

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Título:
Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
Autor: Alt, C. ; Blume, C. ; Dinkelaker, P. ; Flierl, D. ; Kliemant, M. ; Kniege, S. ; Kollegger, T. ; Lungwitz, B. ; Mitrovski, M. ; Renfordt, R. ; Schuster, T. ; Stock, R. ; Strabel, C. ; Stroebele, H. ; Wetzler, A. ; Anticic, T. ; Kadija, K. ; Nicolic, V. ; Susa, T. ; Baatar, B.
Assuntos: CERN SPS SYNCHROTRON ; ENERGY DEPENDENCE ; GEV RANGE ; KAONS ; LEAD 208 REACTIONS ; LEAD 208 TARGET ; MASS SPECTRA ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEAR REACTION YIELD ; PARTICLE PRODUCTION ; PIONS ; PROTONS ; QUARK MATTER
É parte de: Physical review. C, Nuclear physics, 2008-02, Vol.77 (2)
Descrição: Results on charged pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV are presented and compared to data at lower and higher energies. Around 30A GeV a rapid change of the energy dependence for the yields of pions and kaons as well as for the shape of the transverse mass spectra is observed. The change is compatible with the prediction that the threshold for production of a state of deconfined matter at the early stage of the collisions is located at low CERN Super Proton Synchroton energies.
Editor: United States
Idioma: Inglês

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