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相关论文: Constraints on the hadronic spectrum from Lattice …

200 篇论文

Whether Quantum Chromodynamics (QCD) exhibits a phase transition at finite temperature and density is an open question. It is important for hydrodynamic modeling of heavy ion collisions and neutron star mergers. Lattice QCD simulations have…

核理论 · 物理学 2022-10-19 J. I. Kapusta , T. Welle

We construct a family of equations of state within a quasiparticle model by relating pressure, energy density, baryon density and susceptibilities adjusted to first-principles lattice QCD calculations. The relation between pressure and…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Bluhm , B. Kampfer , R. Schulze , D. Seipt , U. Heinz

I review recent lattice QCD results on a few selected topics which are relevant to the heavy ion physics community. Special emphasis is put on the QCD equation of state at vanishing and nonzero baryon chemical potential, the onset of…

高能物理 - 格点 · 物理学 2015-06-22 Heng-Tong Ding

The hadronic spectrum obtained in the framework of a QCD-inspired schematic model, is presented. The model is the extension of a previous version, whose basic degrees of freedom are constituent quarks and antiquarks, and gluons. The…

核理论 · 物理学 2009-11-10 M. Nunez , S. Lerma , P. O. Hess , S. Jesgarz , O. Civitarese , M. Reboiro

In a finite volume, resonances and multi-hadron states are identified by discrete energy levels. When comparing the results of lattice QCD calculations to scattering experiments, it is important to have a way of associating the energy…

高能物理 - 格点 · 物理学 2015-03-20 J. M. M. Hall , A. C. -P. Hsu , D. B. Leinweber , A. W. Thomas , R. D. Young

We employ the lattice QCD data on Taylor expansion coefficients to extend our previous parametrization of the equation of state to finite baryon density. When we take into account lattice spacing and quark mass dependence of the hadron…

核理论 · 物理学 2017-11-22 Pasi Huovinen , Peter Petreczky , Christian Schmidt

Progress in determining the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of carefully-designed hadron operators have been studied and their effectiveness in facilitating the extraction of excited-state…

高能物理 - 格点 · 物理学 2015-05-18 C. Morningstar , A. Bell , J. Bulava , E. Engelson , J. Foley , K. J. Juge , D. Lenkner , M. Peardon , S. Wallace , C. H. Wong

Recent results on the equation of state from lattice QCD are reviewed. The lattice technique and previous results are shortly discussed. New results for physical quark masses and two sets of lattice spacings are presented. The pressure,…

高能物理 - 唯象学 · 物理学 2009-11-11 S. D. Katz

In the past years there has been a revival of hadron spectroscopy. Many interesting new hadron states were discovered experimentally, some of which do not fit easily into the quark model. This situation motivated a vigorous theoretical…

高能物理 - 唯象学 · 物理学 2010-11-30 Marina Nielsen , Fernando S. Navarra , Su Houng Lee

The last two decades have witnessed the discovery of a myriad of new and unexpected hadrons. The future holds more surprises for us, thanks to new-generation experiments. Understanding the signals and determining the properties of the…

Studies of hadronic final states are entering a new phase where very precise experimental measurements require better theoretical predictions for a meaningful comparison. Recent results and future developments are briefly reviewed both for…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Grazzini , R. Nania

The SU(3)_flavor constituent quark model has been quite successful to explain the properties as well as the observed spectrum of mesons with pseudoscalar and vector quantum numbers. Many radial and orbital excitations of quark-antiquark…

高能物理 - 实验 · 物理学 2015-03-20 Bernhard Ketzer

Lattice Gauge Theory enables an ab initio study of the low-energy properties of Quantum Chromodynamics, the theory of the strong interaction. I begin these lectures by presenting the lattice formulation of QCD, and then outline the…

核理论 · 物理学 2017-08-23 D. G. Richards

Lattice QCD determinations appropriate to hadron spectroscopy are reviewed with emphasis on the glueball and hybrid meson states in the quenched approximation. Hybrids are discussed for heavy and for light quarks. The effects of sea quarks…

高能物理 - 唯象学 · 物理学 2008-11-26 Chris Michael

A compound effective model reproducing the equation of state of hadronic matter as obtained in recent lattice QCD simulations is presented.

核理论 · 物理学 2012-04-17 L. Turko , D. Blaschke. D. Prorok , J. Berdermann

Recent developments in hadron spectroscopy triggers the discussion on various exotic configurations beyond the simple three-quark state for baryons and quark-anti-quark pair for mesons. In particular, the states observed near a two-hadron…

高能物理 - 唯象学 · 物理学 2020-01-08 Tetsuo Hyodo

We examine the stability of hadron resonance gas models by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. Hadron…

高能物理 - 唯象学 · 物理学 2010-04-29 S. Chatterjee , R. M. Godbole , Sourendu Gupta

We discuss the modeling of the hadronic phase of QCD at finite magnetic field in the framework of hadron resonance gas (HRG). We focus on the statistical description of particle yields that include contribution from resonance decays. We…

Excited-state effects lead to hard-to-quantify systematic uncertainties in lattice quantum chromodynamics (LQCD) spectroscopy calculations when computationally accessible imaginary times are smaller than inverse excitation gaps, as often…

The increasing importance of hadronic resonances in our understanding of the Standard Model is underscored by recent advancements in lattice Quantum Chromodynamics (QCD) calculations. We review recent developments, with a particular…

高能物理 - 格点 · 物理学 2024-01-19 Luka Leskovec