Deconfinement transition for nonzero baryon density in the field correlator method

Simonov, Yu. A.; Trusov, M. A.

doi:10.1134/s0021364007120028

Cited by 40 publications

(104 citation statements)

References 7 publications

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“…This is the so-called called single line approximation [43]. Using this approximation the quark pressure P q for a single flavor, reads [43,45,46] …”

Section: Eos Of the Quark Phasementioning

confidence: 99%

“…Recently this method has been extended to the case of nonzero baryon density [43][44][45][46] making possible its application to neutron star matter. The principal advantage of the FCM is a natural explanation and treatment of the dynamics of confinement in terms of color electric…”

Section: Eos Of the Quark Phasementioning

confidence: 99%

“…Following Ref. [43], we use the value λ = 0.34 fm which has been determined in lattice QCD calculations [57]. In this formalism V 1 in Eq.…”

Section: Eos Of the Quark Phasementioning

confidence: 99%

“…(7) represents the vacuum energy difference between the quark and hadronic phases, in the case of three-flavor (u, d, s) quark matter [43], and G 2 is the gluon condensate. The latter quantity has been determined using QCD sum rules [61] to be in the range G 2 = (0.012 ± 0.006) GeV 4 .…”

Section: Eos Of the Quark Phasementioning

confidence: 99%

“…Recently the deconfinement phase transition has been described using an EOS of quark gluon plasma derived within the field correlator method (FCM) [41,42] extended to finite baryon chemical potential [43][44][45][46]. The field correlator method is a nonperturbative approach to QCD which includes from first principles the dynamics of confinement in terms of color electric and color magnetic correlators.…”

Section: Introductionmentioning

confidence: 99%

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Quark deconfinement transition in neutron stars with the field correlator method

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Bombaci

2013

Phys. Rev. D

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A phase of strong interacting matter with deconfined quarks is expected in the core of massive neutron stars. In this article, we perform a study of the hadron-quark phase transition in cold (T = 0) neutron star matter and we calculate various structural properties of hybrid stars. For the quark phase, we make use of an equation of state (EOS) derived with the field correlator method (FCM) recently extended to the case of nonzero baryon density. For the hadronic phase, we consider both pure nucleonic and hyperonic matter, and we derive the corresponding EOS within a relativistic mean field approach. We make use of measured neutron star masses, and particularly the mass M = 1.97 ± 0.04 M of PSR J1614-2230 to constrain the values of the gluon condensate G2, which is one of the EOS parameters within the FCM. We find that the values of G2 extracted from the mass measurement of PSR J1614-2230 are consistent with the values of the same quantity derived within the FCM from recent lattice QCD calculations of the deconfinement transition temperature at zero baryon chemical potential. The FCM thus provides a powerful tool to link numerical calculations of QCD on a space-time lattice with measured neutron star masses. --------------------

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“…This is the so-called called single line approximation [43]. Using this approximation the quark pressure P q for a single flavor, reads [43,45,46] …”

Section: Eos Of the Quark Phasementioning

confidence: 99%

Section: Eos Of the Quark Phasementioning

confidence: 99%

“…Following Ref. [43], we use the value λ = 0.34 fm which has been determined in lattice QCD calculations [57]. In this formalism V 1 in Eq.…”

Section: Eos Of the Quark Phasementioning

confidence: 99%

Section: Eos Of the Quark Phasementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Quark deconfinement transition in neutron stars with the field correlator method

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Bombaci

2013

Phys. Rev. D

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Strange stars properties calculated in the framework of the Field Correlator Method

Pereira

2011

Nuclear Physics A

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SQM studied in the Field Correlator Method

Pereira

2013

Nuclear Physics A

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By using the recent nonperturbative equation of state of the quark gluon plasma derived in the formalism of the Field Correlator Method, we investigate the bulk properties of the strange quark matter in beta-equilibrium and with charge neutrality at T=p=0. The results show that the stability of strange quark matter with respect to $^{56}Fe$ is strongly dependent on the model parameters, namely, the gluon condensate $G_2$ and the q$\bar{\rm q}$ interaction potential $V_1$. A remarkable result is that the width of the stability window decreases as $V_1$ increases, being maximum at $V_1=0$ and nearly zero at $V_1=0.5$ GeV. For $V_1$ in the range $0\leq V_1\leq0.5$ GeV, all values of $G_2$ are lower than $0.006-0.007\;{\rm GeV}^4$ obtained from comparison with lattice results at $T_c\;(\mu=0)\sim170$ MeV. These results do not favor the possibilities for the existence of (either nonnegative or negative) absolutely stable strange quark matter

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Deconfinement transition for nonzero baryon density in the field correlator method

Cited by 40 publications

References 7 publications

Quark deconfinement transition in neutron stars with the field correlator method

Quark deconfinement transition in neutron stars with the field correlator method

Strange stars properties calculated in the framework of the Field Correlator Method

SQM studied in the Field Correlator Method

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