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Fig. 2
Upper panel: hybrid EoS built from DD2-EV and NJL8 with phase transition via the Maxwell construction, for the NJL8 parameter η2 = 0.08 and varying η4 from 0.0–30. Lower panel: squared speed of sound for these hybrid EoS. For comparison, in both panels the hadronic EoS DD2 is shown (solid brown line). (Colour online.)
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