Energy-driven disorder in mean field QCD

Nedelko, Sergei N.; Voronin, Vladimir E.

doi:10.1103/physrevd.103.114021

Cited by 7 publications

(8 citation statements)

References 58 publications

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“…Motivation of the model employed in the present paper and technical details of its derivation can be found in references [4][5][6][7][8][9][10]. The defining property of the model is domain-structured Abelian (anti-)self-dual vacuum gluon fields which are treated nonperturbatively.…”

Section: Description Of the Modelmentioning

confidence: 99%

“…In this paper, we address the specific role which soft gluon fields may play in the hadronic vacuum polarization (HVP) and hadronic light-by-light scattering (HLbL) contributions to a μ using the mean-field approach to physical QCD vacuum. Specifically, we will touch this issue by calculating the lowest order in the number of intermediate mesons contributions (quark loop and one intermediate meson) within the domain model of QCD vacuum and hadronization developed in references [4][5][6][7][8][9][10]. The driving feature of the model is the vacuum mean field represented by domain-structured configurations of almost everywhere homogeneous Abelian (anti-)self-dual gluon field which is treated nonperturbatively.…”

Section: Introductionmentioning

confidence: 99%

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Soft gluon fields and anomalous magnetic moment of muon

Nedelko¹,

Nikolskii²,

Voronin³

2022

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

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An impact of nonperturbatively treated soft gluon modes on the value of anomalous magnetic moment of muon a_µ is studied within the mean-field approach to QCD vacuum and hadronization. It is shown that radial excitations of vector mesons strongly enhance contribution of hadronic vacuum polarization to a_µ, doubling the contribution of one-meson processes compared to the result for ground state mesons. The mean field also strongly influences the hadronic light-by-light scattering contribution due to the Wilson line in quark propagators.

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Section: Description Of the Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soft gluon fields and anomalous magnetic moment of muon

Nedelko¹,

Nikolskii²,

Voronin³

2022

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…Motivation of the model employed in the present paper and technical details of its derivation can be found in Refs. [4][5][6][7][8][9][10]. The defining property of the model is domain-structured Abelian (anti-)self-dual vacuum gluon fields which are treated nonperturbatively.…”

Section: Description Of the Modelmentioning

confidence: 99%

“…Specifically, we will touch this issue by calculating the lowest order in the number of intermediate mesons contributions (quark loop and one intermediate meson) within the domain model of QCD vacuum and hadronization developed in Refs. [4][5][6][7][8][9][10]. The driving feature of the model is the vacuum mean field represented by domain-structured configurations of almost everywhere homogeneous Abelian (anti-)self-dual gluon field which is treated nonperturbatively.…”

Section: Introductionmentioning

confidence: 99%

Soft gluon fields and anomalous magnetic moment of muon

Nedelko,

Nikolskii,

Voronin

2021

Preprint

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An impact of nonperturbatively-treated soft gluon modes on the value of anomalous magnetic moment of muon aµ is studied within the mean-field approach to QCD vacuum and hadronization. It is shown that radial excitations of vector mesons strongly enhance contribution of hadronic vacuum polarization to aµ, doubling the contribution of one intermediate meson processes compared to result for ground state mesons. The mean field also strongly influences the hadronic light-by-light scattering contribution due to the Wilson line in quark propagators.

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“…Here, we calculate the photon production in the conversion process of gluons, gg → γ, via quark loop (see Figure 1) in the presence of a homogeneous Abelian gauge field. Our calculation is based on the mean-field approach within the domain model of QCD (quantum chromodynamics) vacuum and hadronization [11][12][13]. According to this approach, in the confinement phase, the entire space is filled by the domain-structured Abelian that is almost entirely made up of homogeneous (anti-)self-dual gluon fields, whereas the chromomagnetic field dominates in the walls that separate (anti-)self-dual space areas.…”

Section: Introductionmentioning

confidence: 99%

Photons as a Signal of Deconfinement in Hadronic Matter under Extreme Conditions

Nedelko

Nikolskii

2023

Physics

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The photon production by conversion of gluons gg→γ via quark loop in the framework of the mean-field approach to the QCD (quantunm chromodynamics) vacuum is studied here. According to the domain model of QCD vacuum, the confinement phase is dominated by Abelian (anti-)self-dual gluon fields, while the deconfinement phase is characterized by a strong chromomagnetic field. In the confinement phase, photon production is impossible due to the random spacial orientation of the statistical ensemble of vacuum fields. However, the conditions of Furry theorem are not satisfied in the deconfinement phase, the conversion of gluons is nonzero and, in addition, photon distribution has a strong angular anisotropy. Thus, the photon production in the discussed process acts as one of the important features of transition in quark-gluon plasma to the deconfinement phase.

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Energy-driven disorder in mean field QCD

Cited by 7 publications

References 58 publications

Soft gluon fields and anomalous magnetic moment of muon

Soft gluon fields and anomalous magnetic moment of muon

Soft gluon fields and anomalous magnetic moment of muon

Photons as a Signal of Deconfinement in Hadronic Matter under Extreme Conditions

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