Evidence of the QCD tricritical endpoint existence at NICA-FAIR energies

arxiv: 1711.07283 · v1 · pith:GADVT5CEnew · submitted 2017-11-20 · ⚛️ nucl-th

Evidence of the QCD tricritical endpoint existence at NICA-FAIR energies

K. A. Bugaev , R. Emaus , V. V. Sagun , A. I. Ivanytskyi , L. V. Bravina , D. B. Blaschke , E. G. Nikonov , A. V. Taranenko

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E. E. Zabrodin G. M. Zinovjev

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classification ⚛️ nucl-th

keywords chiralcollisionendpointenergiesevidenceexistencephasesignals

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We present a summary of possible signals of the chiral symmetry restoration and deconfinement phase transitions which may be, respectively, probed at the center of mass collision energies at 4.3-4.9 GeV and above 8.7-9.2 GeV. It is argued that these signals may evidence for an existence of the tricritical endpoint of QCD phase diagram at the collision energy around 8.7-9.2 GeV. The equation of state of hadronic matter with the restored chiral symmetry is discussed and the number of bosonic and fermionic degrees of freedom is found.

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Evidence of the QCD tricritical endpoint existence at NICA-FAIR energies

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