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相关论文: Volume dependence of two-dimensional large-N QCD w…

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The broad class of U(N) and SU(N) Polyakov loop models on the lattice are solved exactly in the combined large N, Nf limit, where N is a number of colors and Nf is a number of quark flavors, and in any dimension. In this 't Hooft-Veneziano…

高能物理 - 格点 · 物理学 2021-11-16 O. Borisenko , V. Chelnokov , S. Voloshyn

We propose a new model-independent method for determining hadronic resonances from lattice QCD. The formalism is derived from the general principles of unitarity and analyticity, as encoded in the $N/D$ representation of a partial-wave…

高能物理 - 格点 · 物理学 2024-11-26 Sebastian M. Dawid , Andrew W. Jackura , Adam P. Szczepaniak

The lattice simulations of $QC_2D$ with two flavors of staggered fermions and non-zero quark chemical potential $\mu_q$ have been performed. Dependencies of the Polyakov loop, chiral condensate and baryon number density on $\mu_q$ were…

高能物理 - 格点 · 物理学 2016-02-17 V. V. Braguta , A. Yu. Kotov , A. A. Nikolaev , S. N. Valgushev

A comparative study between the L\"uscher's finite volume method and the time-dependent HAL QCD method is given for the $\Xi\Xi$($^1\mathrm{S}_0$) interaction as an illustrative example. By employing the smeared source and the wall source…

高能物理 - 格点 · 物理学 2015-12-15 Takumi Iritani , for HAL QCD Collaboration

We study finite volume effects within the Polyakov loop Nambu-Jona-Lasinio model for two light and one heavy quarks at vanishing baryon chemical potential and finite temperatures. We include three different Polyakov loop potentials and…

高能物理 - 唯象学 · 物理学 2018-08-24 A. G. Grunfeld , G. Lugones

We present a study of thermodynamic properties of suspensions of charged colloids on the basis of linear Poisson-Boltzmann theory. We calculate the effective Hamiltonian of the colloids by integrating out the ionic degrees of freedom…

软凝聚态物质 · 物理学 2007-05-23 Bas Zoetekouw , Rene van Roij

We study the heavy quark mass dependence of selected observables constructed from heavy-light meson correlation functions in small-volume two-flavour lattice QCD after taking the continuum limit. The light quark mass is tuned to zero,…

高能物理 - 格点 · 物理学 2016-02-17 P. Fritzsch , N. Garron , J. Heitger

It is evident that the positions of 4 bodies in $d>2$ dimensional space can be identified with vertices of a tetrahedron. Square of volume of the tetrahedron, weighted sum of squared areas of four facets and weighted sum of squared edges…

经典物理 · 物理学 2023-03-07 A. M. Escobar-Ruiz , Alexander V Turbiner

We critically examine how well the evolution of large-scale density perturbations is followed in cosmological $N$-body simulations. We first run a large volume simulation and perform a mode-by-mode analysis in three-dimensional Fourier…

Drawing on experimental data for baryon resonances, Hamiltonian effective field theory (HEFT) is used to predict the positions of the finite-volume energy levels to be observed in lattice QCD simulations of the lowest-lying $J^P=1/2^-$…

高能物理 - 格点 · 物理学 2016-03-01 Zhan-Wei Liu , Waseem Kamleh , Derek B. Leinweber , Finn M. Stokes , Anthony W. Thomas , Jia-Jun Wu

As computing resources are limited, choosing the parameters for a full Lattice QCD simulation always amounts to a compromise between the competing objectives of a lattice spacing as small, quarks as light, and a volume as large as possible.…

高能物理 - 格点 · 物理学 2009-11-11 B. Orth , Th. Lippert , K. Schilling

We study the 2+1 dimensional SU(N) Yang-Mills theory on a finite two-torus with twisted boundary conditions. Our goal is to study the interplay between the rank of the group N, the length of the torus L and the Z_N magnetic flux. After…

高能物理 - 格点 · 物理学 2013-07-22 Margarita García Pérez , Antonio González-Arroyo , Masanori Okawa

We investigate a baryon and its dilatation modes in holographic QCD based on the Sakai-Sugimoto model, which is expressed as a 1+4 dimensional U($N_f$) gauge theory in the flavor space. For spatially rotational symmetric systems, we apply a…

高能物理 - 理论 · 物理学 2024-01-29 Keiichiro Hori , Hideo Suganuma , Hiroki Kanda

We study QCD vacuum structure with the topological $\theta$ angle using a recently proposed semiclassical approach on $\mathbb{R}^2 \times T^2$ with the 't Hooft and baryon magnetic fluxes. Under the assumption of adiabatic continuity in…

高能物理 - 理论 · 物理学 2024-04-24 Yui Hayashi , Yuya Tanizaki

Baryon masses at varying values of Nc and light quark masses are studied with Lattice QCD and the results are analyzed in a low energy effective theory based on a combined framework of the 1/Nc and Heavy Baryon Chiral Perturbation Theory…

高能物理 - 唯象学 · 物理学 2014-07-23 A. Calle Cordon , T. DeGrand , J. L. Goity

We consider scattering in nonperturbative Quantum Chromodynamics (QCD) for large invariant centre of mass energy $\surd s$. Our analysis is based upon the Stochastic Vacuum Model~(SVM) of Dosch and Simonov and on the nonperturbative $s \to…

高能物理 - 唯象学 · 物理学 2007-05-23 G. Kulzinger

We study the properties and couplings of hybrid baryons in the large-$N_c$ expansion. These are color-neutral baryon states which contain in addition to $N_c$ quarks also one constituent gluon. Hybrid baryons with both symmetric and mixed…

高能物理 - 唯象学 · 物理学 2016-08-25 Chi-Keung Chow , Dan Pirjol , Tung-Mow Yan

Two ideas have greatly contributed to our understanding of baryon structure in the framework of Quantum Chromodynamics (QCD). The first, chiral symmetry, received its fundamental justification from QCD and has been developed into the…

高能物理 - 唯象学 · 物理学 2009-09-25 Thomas D. Cohen

We use a variational procedure to study finite density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons. We find that uniform states with conventional chiral symmetry breaking have…

高能物理 - 唯象学 · 物理学 2009-10-30 M. Alford , K. Rajagopal , F. Wilczek

The generalization of QCD to many colors is not unique; each distinct choice corresponds to a distinct 1/N_c expansion. The familiar 't Hooft N_c -> \infty limit places quarks in the fundamental representation of SU(N_c), while an…

高能物理 - 唯象学 · 物理学 2009-09-02 Aleksey Cherman , Thomas D. Cohen , Richard F. Lebed