Effects of quark anomalous magnetic moment on the thermodynamical properties and mesonic excitations of magnetized hot and dense matter in PNJL model

Chaudhuri, Nilanjan; Ghosh, Snigdha; Sarkar, Sourav; Roy, P.

doi:10.1140/epja/s10050-020-00222-9

Cited by 37 publications

(35 citation statements)

References 106 publications

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“…This behaviour of and Φ mentioned above are consistent with the previous results for NJL-type models as can be seen in Refs. [3,65,71,73,75,76,[87][88][89][90]. = 0.15 GeV 2 .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The Lagrangian for the two-flavor PNJL model considering the AMM of free quarks in the presence of a constant background magnetic field and CCP is given by [75,76]…”

Section: The Pnjl Modelmentioning

confidence: 99%

“…Another approach to obtain results in both NJL and PNJL models (with constant coupling) consistent with the lattice calculation is the inclusion of anomalous magnetic moment (AMM) of the quarks. Recently, there has been a lot of activity in this direction involving both NJL and PNJL models to study the phase structure as well as the mesonic excititations ( and ) [73][74][75][76][77]. The values of the AMM of the quarks can be taken as constant [73,75,76] or temperature and magnetic field dependent [77]; in either case the values must reproduce the vacuum values of the AMM of the proton and neutron.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, there has been a lot of activity in this direction involving both NJL and PNJL models to study the phase structure as well as the mesonic excititations ( and ) [73][74][75][76][77]. The values of the AMM of the quarks can be taken as constant [73,75,76] or temperature and magnetic field dependent [77]; in either case the values must reproduce the vacuum values of the AMM of the proton and neutron. With the inclusion of the AMM of the quarks both in the NJL and PNJL models with constant coupling, it has been found that the critical temperature decreases with the magnetic field leading to inverse magnetic catalysis (IMC) [73,75,76].…”

Section: Introductionmentioning

confidence: 99%

“…The values of the AMM of the quarks can be taken as constant [73,75,76] or temperature and magnetic field dependent [77]; in either case the values must reproduce the vacuum values of the AMM of the proton and neutron. With the inclusion of the AMM of the quarks both in the NJL and PNJL models with constant coupling, it has been found that the critical temperature decreases with the magnetic field leading to inverse magnetic catalysis (IMC) [73,75,76]. Moreover, the inclusion of AMM leads to interesting consequences in the dilepton production rate in both NJL and PNJL models [78,79].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Insignificance of the anomalous magnetic moment of the quarks in presence of chiral imbalance

Chaudhuri,

Mukherjee,

Ghosh

et al. 2021

Preprint

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We incorporate the anomalous magnetic moment (AMM) of quarks in the framework of PNJL model to study hot and dense magnetised matter with chiral imbalance. For this purpose, the eigen energy solution of the Dirac equation is obtained in presence of constant background magnetic field and chiral chemical potential (CCP) along with the minimal anomalous magnetic moment interaction of the fermion. Although there is a marginal enhancement in the IMC behaviour of the quark condensate due to the combined effects of AMM and CCP, we find that the overall behaviour of the Polyakov loop and the chiral charge density is dominated by the chiral chemical potential. It is further shown that the AMM effects in presence of CCP remains insignificant even for dynamically generated moments.

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“…This behaviour of and Φ mentioned above are consistent with the previous results for NJL-type models as can be seen in Refs. [3,65,71,73,75,76,[87][88][89][90]. = 0.15 GeV 2 .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The Lagrangian for the two-flavor PNJL model considering the AMM of free quarks in the presence of a constant background magnetic field and CCP is given by [75,76]…”

Section: The Pnjl Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Insignificance of the anomalous magnetic moment of the quarks in presence of chiral imbalance

Chaudhuri,

Mukherjee,

Ghosh

et al. 2021

Preprint

Self Cite

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show abstract

Anisotropy and paramagnetism of QCD matter with an anomalous magnetic moment

He,

Wen

2024

J. Phys. G: Nucl. Part. Phys.

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We employ the Polyakov loop enhanced Nambu- Jona-Lasinio model incorporating the quarkanomalous magnetic moment to investigate the anisotropy structure and the renormalized magne tization of magnetized quark matter at finite temperature. The ultraviolet divergences and non physical oscillatory behavior are eliminated by the vacuum magnetic regularization scheme. Witha parametrization of anomalous magnetic moment proportional to the square of the chiral conden sate, the renormalized magnetization is enlarged by the strong magnetic field so that the anisotropybecomes more apparent. The inflection point of the renormalized magnetization indicates the pseu docritical temperature for the chiral crossover. We find that the results with anomalous magneticmoment are closer to the lattice Quantum Chromodynamics data. The connection between the para magnetism and the chiral transition provides new insight for a magnetohydrodynamics descriptionof a hot and dense QCD matter produced in heavy-ion collisions.

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Magnetic correction to the anomalous magnetic moment of electrons

Lin¹,

Huang²

2022

Commun. Theor. Phys.

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We investigate the leading order correction of anomalous magnetic moment (AMM) to the electron in weak magnetic field and find that the magnetic correction is negative and magnetic field dependent, indicating a magnetic catalysis effect for the electron gas. In the laboratory to measure the $g-2$, the magnitude of the magnetic field $B$ is several $\mathrm{T}$, correspondingly the magnetic correction to the AMM of electron/muon is around $10^{-34}$/$10^{-42}$, therefore the magnetic correction can be safely neglected in current measurement. However, when the magnitude of the magnetic field strength is comparable with the electron mass, the magnetic correction of electron's AMM will become considerable. This general magnetic correction to charged fermion's AMM can be extended to study QCD matter under strong magnetic field.

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Effects of quark anomalous magnetic moment on the thermodynamical properties and mesonic excitations of magnetized hot and dense matter in PNJL model

Cited by 37 publications

References 106 publications

Insignificance of the anomalous magnetic moment of the quarks in presence of chiral imbalance

Insignificance of the anomalous magnetic moment of the quarks in presence of chiral imbalance

Anisotropy and paramagnetism of QCD matter with an anomalous magnetic moment

Magnetic correction to the anomalous magnetic moment of electrons

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