Holographic QCD for H-dibaryon (uuddss)

Suganuma, Hideo; Matsumoto, Keīichi

doi:10.1051/epjconf/201713713018

Cited by 10 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a superconductor, the fields are approximately classical and the flux tube main parameter is the penetration length λ in the London equation has a direct relation with an effective mass of the interaction particle fields, i. e., the photon. In QCD, the dual gluon mass has been studied by several authors, [31][32][33][34][35][36][37][38], as well as the gluon effective mass [39]. Interestingly, there is also an evidence for a gluon mass in the Landau Gauge [40] and in the multiplicity of particles produced in heavy ion collisions [41].…”

Section: Introductionmentioning

confidence: 99%

Pure gauge flux tubes and their widths at finite temperature

Bicudo¹,

Cardoso²,

Cardoso³

2019

Nuclear Physics B

View full text Add to dashboard Cite

We study the flux tubes produced by static quark-antiquark, quark-quark and quark-adjoint charges at finite temperature in pure gauge SU(3) lattice QCD. This is relevant both for the study of flux tubes and strings, and for the interaction of heavy quarks and other colour sources in heavy ion collision physics. Our sources are static and our lattice correlators are composed of fundamental and adjoint Polyakov loops. To signal the flux tubes, we compute the square densities of the chromomagnetic and chromoelectric fields with plaquettes, in a gauge invariant framework. We study the existence and non-existence of flux tubes both below and above the deconfinement phase transition temperature Tc. Using the Lagrangian density as a profile distribution, we also compute the widths of the flux tubes and study their widening as a function of the inter-charge distance. We determine our results with both statistical and systematic errors.

show abstract

Section: Introductionmentioning

confidence: 99%

Pure gauge flux tubes and their widths at finite temperature

Bicudo¹,

Cardoso²,

Cardoso³

2019

Nuclear Physics B

View full text Add to dashboard Cite

show abstract

“…There are already some works along this direction. (See, e.g., [19,[34][35][36][37][38].) We hope our work removes possible concerns on the validity of the formulation and provides some new insight into application of holographic QCD to hyperons.…”

Section: Discussionmentioning

confidence: 95%

Chern-Simons five-form and holographic baryons

Lau

Sugimoto

2017

Phys. Rev. D

View full text Add to dashboard Cite

In the top-down holographic model of QCD based on D4/D8-branes in type IIA string theory and some of the bottom-up models, the low energy effective theory of mesons is described by a five-dimensional Yang-Mills-Chern-Simons theory in a certain curved background with two boundaries. The fivedimensional Chern-Simons term plays a crucial role in reproducing the correct chiral anomaly in fourdimensional massless QCD. However, there are some subtle ambiguities in the definition of the Chern-Simons term for the cases with topologically nontrivial gauge bundles, which include the configurations with baryons. In particular, for the cases with three flavors, it was pointed out by Hata and Murata that the naive Chern-Simons term does not lead to an important constraint on the baryon spectrum, which is needed to pick out the correct baryon spectrum observed in nature. In this paper, we propose a formulation of a well-defined Chern-Simons term which can be used for the cases with baryons, and show that it recovers the correct baryon constraint as well as the chiral anomaly in QCD.

show abstract

“…The leading contribution of the quark number density in large quark mass region (8) is expressed by the Polyakov loop and its complex conjugate. It is already known that the Polyakov loop can be expressed in terms of the eigenmodes of the naive-Dirac operator which corresponds to the case of r = 0 [16,17] and the Wilson-Dirac operator [18,19]. In the following, we derive a different form of the Dirac spectral representation of the Polyakov loop using the operator D on the square lattice with the normal nontwisted periodic boundary condition for link-variables, in both temporal and spatial directions.…”

Section: Large Quark Mass Regionmentioning

confidence: 99%

Dirac-mode analysis for quark number density and its application for deconfinement transition

Doi

Kashiwa

2018

EPJ Web Conf.

View full text Add to dashboard Cite

The quark number density at finite imaginary chemical potential is investigated in the lattice QCD using the Dirac-mode expansion. We find the analytical formula of the quark number density in terms of the Polyakov loop in the large quark mass regime. On the other hand, in the small quark mass region, the quark number density is investigated by using the quenched lattice QCD simulation. The quark number density is found to strongly depend on the low-lying Dirac modes while its sign does not change. This result leads to that the quark number holonomy is not sensitive to the low-lying Dirac modes. We discuss the confinement-deconfinement transition from the property of the quark number density and the quark number holonomy.

show abstract

Holographic QCD for H-dibaryon (uuddss)

Cited by 10 publications

References 22 publications

Pure gauge flux tubes and their widths at finite temperature

Pure gauge flux tubes and their widths at finite temperature

Chern-Simons five-form and holographic baryons

Dirac-mode analysis for quark number density and its application for deconfinement transition

Contact Info

Product

Resources

About