# Influence of the nuclear equation of state on the hadron-quark phase transition in neutron stars

• We study the hadron-quark phase transition in the interior of neutron stars, and examine the influence of the nuclear equation of state on the phase transition and neutron star properties. The relativistic mean field theory with several parameter sets is used to construct the nuclear equation of state, while the
Nambu-Jona-Lasinio model is used for the description of the deconfined quark phase. Our results show that a harder nuclear equation of state leads to an earlier onset of a mixed phase of hadronic and quark matter. We find that a massive neutron star possesses a mixed phase core, but it is not dense enough to possess a pure quark core.

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YANG Fang and SHEN Hong. Influence of the nuclear equation of state on the hadron-quark phase transition in neutron stars[J]. Chinese Physics C, 2008, 32(7): 536-542. doi: 10.1088/1674-1137/32/7/005
YANG Fang and SHEN Hong. Influence of the nuclear equation of state on the hadron-quark phase transition in neutron stars[J]. Chinese Physics C, 2008, 32(7): 536-542.
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Revised: 2007-10-08
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沈阳化工大学材料科学与工程学院 沈阳 110142

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## Influence of the nuclear equation of state on the hadron-quark phase transition in neutron stars

###### Corresponding author: YANG Fang,

Abstract:

We study the hadron-quark phase transition in the interior of neutron stars, and examine the influence of the nuclear equation of state on the phase transition and neutron star properties. The relativistic mean field theory with several parameter sets is used to construct the nuclear equation of state, while the
Nambu-Jona-Lasinio model is used for the description of the deconfined quark phase. Our results show that a harder nuclear equation of state leads to an earlier onset of a mixed phase of hadronic and quark matter. We find that a massive neutron star possesses a mixed phase core, but it is not dense enough to possess a pure quark core.

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