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Indications for the onset of deconfinement in nucleus nucleus collisions (CROSBI ID 756671)

Druge vrste radova | ostalo

Antičić, Tome ; Kadija, Krešo ; Šuša, Tatjana ; et al. (NA49 Collaboration) Indications for the onset of deconfinement in nucleus nucleus collisions // nucl-ex/0412018. 2004.

Podaci o odgovornosti

Antičić, Tome ; Kadija, Krešo ; Šuša, Tatjana ; et al. (NA49 Collaboration)

engleski

Indications for the onset of deconfinement in nucleus nucleus collisions

The hadronic final state of central Pb+Pb collisions at 20, 30, 40 80 and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to force the hot and dense nucler matter into a deconfined phase.

NA49; CERN; SPS; hadron production; transverse mass; deconfinement

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Podaci o izdanju

nucl-ex/0412018

2004.

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objavljeno

Povezanost rada

Fizika