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The renormalization of the effective QCD-Hamiltonian theory for the quark-antiquark channel is performed in terms of a renormalized or fixed-point Hamiltonian that leads to subtracted dynamical equations. The fixed point-Hamiltonian brings…

High Energy Physics - Phenomenology · Physics 2009-11-07 T. Frederico , H. -C. Pauli

The chiral symmetry breaking ($\chi_{SB}$) is one of the most fundamental problems in QCD. In this paper, we calculate quark condensation analytically in a holographic QCD model dual to the Einstein-Maxwell-Dilaton (EMD) system coupled to a…

High Energy Physics - Theory · Physics 2021-02-24 Meng-Wei Li , Yi Yang , Pei-Hung Yuan

We construct a fully back-reacted holographic dual of a four-dimensional field theory which exhibits chiral symmetry breaking. Two possible models are considered by studying the effects of a five-dimensional field, dual to the $q\bar{q}$…

High Energy Physics - Phenomenology · Physics 2010-10-27 Jonathan P. Shock , Feng Wu , Yue-Liang Wu , Zhi-Feng Xie

We present a simple holographic QCD model that provides a unified description of vector mesons and nucleons in a confining background based on Einstein-dilaton gravity. For the confining background we consider analytical solutions of the…

High Energy Physics - Phenomenology · Physics 2024-05-28 Alfonso Ballon-Bayona , Adão S. da Silva Junior

We present an holographical soft wall model which is able to reproduce Regge spectra for hadrons with an arbitrary number of constituents. The model includes the anomalous dimension of operators that create hadrons, together with a dilaton,…

High Energy Physics - Phenomenology · Physics 2015-05-18 Alfredo Vega , Ivan Schmidt

We generalize the potential reconstruction method to set up a dynamical Einstein-Born-Infeld-dilaton model, which we then use to study holographic quarkonium melting in an external magnetic field. The non-linear nature of the model allows…

High Energy Physics - Theory · Physics 2024-12-18 Siddhi Swarupa Jena , Jyotirmoy Barman , Bruno Toniato , David Dudal , Subhash Mahapatra

A solution to an Einstein--Maxwell--dilaton-type theory with $M$ Liouville potentials and $N$ gauge fields is presented, where $M$ and $N$ are arbitrary integers. This exact solution interpolates between the Lifshitz black hole and the…

General Relativity and Quantum Cosmology · Physics 2020-04-22 Yen-Kheng Lim

We study the dependence of beta-function on running coupling constant in holographic models supported by Einstein-dilaton-Maxwell action for light and heavy quarks. Although, in the previous paper [arXiv:2402.14512], we considered different…

High Energy Physics - Theory · Physics 2024-07-22 Irina Ya. Aref'eva , Ali Hajilou , Pavel Slepov , Marina Usova

In this paper, we present a holographic realization of spontaneous chiral symmetry breaking and confinement. The latter is realized by building a solution of 5d Einstein-dilaton gravity leading to a confining quark antiquark potential. The…

High Energy Physics - Phenomenology · Physics 2023-08-16 Alfonso Ballon-Bayona , Tobias Frederico , Luis A. H. Mamani , Wayne de Paula

We introduce a new framework for constructing black hole solutions that are holographically dual to strongly coupled field theories with explicitly broken translation invariance. Using a classical gravitational theory with a continuous…

High Energy Physics - Theory · Physics 2015-06-17 Aristomenis Donos , Jerome P. Gauntlett

We study the phase structure of QCD in the $T-\mu$ plane using a histogram method and the reweighting technique by performing phase quenched simulations of two-flavor QCD with RG-improved gauge action and O($a$) improved Wilson quark…

High Energy Physics - Lattice · Physics 2012-12-06 Yoshiyuki Nakagawa , Sinya Aoki , Shinji Ejiri , Tetsuo Hatsuda , Kazuyuki Kanaya , Hiroshi Ohno , Hana Saito , Takashi Umeda

We study the dual Higgs mechanism for the nonperturbative QCD. We point out two kind of the ``see-saw'' relations between electric and magnetic sectors. Owing to the Dirac condition $eg=4\pi$, the dual Ginzburg-Landau theory has the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hideo Suganuma , Shoich Sasaki , Hiroko Ichie , Hiroshi Toki , Fumiaki Araki

We propose an extension of 't Hooft's large-$N_c$ light-front QCD in two dimensions to include helicity and physical gluon degrees of freedom, modelled on a classical dimensional reduction of four dimensional QCD. A non-perturbative…

High Energy Physics - Theory · Physics 2009-10-28 F. Antonuccio , S. Dalley

The functional potential formalism is used to analyze stationary axisymmetric spaces in the Einstein-Maxwell-Dilaton theory. Performing a Legendre transformation, a ``Hamiltonian''is obtained, which allows to rewrite the dynamical equations…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Tonatiuh Matos , Dario Nunez , Maribel Rios

We employ an Einstein-Maxwell-dilaton model, based on the gauge/gravity correspondence, to obtain the thermodynamics and transport properties for the hot and dense quark-gluon plasma. The model, which is constrained to reproduce lattice QCD…

Motivated by phenomenological models of hidden local symmetries and the ideas of dimensional deconstruction and gauge/gravity duality, we consider the model of an "open moose". Such a model has a large number K of hidden gauge groups as…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. T. Son , M. A. Stephanov

We conjecture that QCD can be tuned to an infrared limit cycle in the three-nucleon system by adjusting the up and down quark masses to critical values at which the binding energies of the deuteron and its spin-singlet partner are tuned to…

Nuclear Theory · Physics 2007-05-23 Eric Braaten , H. -W. Hammer

We study confinement-deconfinement phase transition in a holographic soft-wall QCD model. By solving the Einstein-Maxwell-scalar system analytically, we obtain the phase structure of the black hole backgrounds. We then impose probe open…

High Energy Physics - Theory · Physics 2017-10-11 Meng-Wei Li , Yi Yang , Pei-Hung Yuan

We construct holographic superconductors from Einstein-Maxwell-dilaton gravity in 3+1 dimensions with two adjustable couplings $\alpha$ and the charge $q$ carried by the scalar field. For the values of $\alpha$ and $q$ we consider, there is…

High Energy Physics - Theory · Physics 2014-11-21 Yan Liu , Ya-Wen Sun

Consistent with cosmological constraints, there are scenarios with the large lepton asymmetry which can lead to the finite baryochemical potential at the cosmic QCD phase transition scale. In this paper, we investigate this possibility in…

High Energy Physics - Theory · Physics 2018-02-14 M. Ahmadvand , K. Bitaghsir Fadafan