Topological susceptibility from<i>N<sub>f</sub></i>= 2 + 1 + 1 lattice QCD at nonzero temperature

Trunin, Anton; Burger, Florian; Ilgenfritz, Ernst-Michael; Lombardo, Maria Paola; Müller–Preussker, M.

doi:10.1088/1742-6596/668/1/012123

Cited by 22 publications

(30 citation statements)

References 7 publications

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“…An extended range of T has been explored in ref. [73] in the presence of twisted mass Wilson fermions, reporting a behavior similar to that observed in this study, although with larger values of the quark masses (corresponding to a pion mass m π ∼ 370 MeV). The comparison is performed in figure 8, and shows a reasonable JHEP03(2016)155 agreement if results from ref.…”

Section: Jhep03(2016)155supporting

confidence: 86%

See 1 more Smart Citation

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Bonati

D’Elia

Mariti

et al. 2016

J. High Energ. Phys.

175

218

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We investigate the topological properties of N f = 2 + 1 QCD with physical quark masses, both at zero and finite temperature. We adopt stout improved staggered fermions and explore a range of lattice spacings a ∼ 0.05− 0.12 fm. At zero temperature we estimate both finite size and finite cut-off effects, comparing our continuum extrapolated results for the topological susceptibility χ with predictions from chiral perturbation theory. At finite temperature, we explore a region going from T c up to around 4 T c , where we provide continuum extrapolated results for the topological susceptibility and for the fourth moment of the topological charge distribution. While the latter converges to the dilute instanton gas prediction the former differs strongly both in the size and in the temperature dependence. This results in a shift of the axion dark matter window of almost one order of magnitude with respect to the instanton computation.

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Section: Jhep03(2016)155supporting

confidence: 86%

“…The comparison is performed in figure 8, and shows a reasonable JHEP03(2016)155 agreement if results from ref. [73] are rescaled according to the mass dependence expected from DIGA, 2 i.e. χ(T ) ∼ m 2 q ∼ m 4 π .…”

Section: Jhep03(2016)155mentioning

confidence: 99%

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Bonati

D’Elia

Mariti

et al. 2016

J. High Energ. Phys.

175

218

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“…In [34] such lattice definition of topological charge density was used for studying the topological susceptibility on the same ensembles. The results of [34] indicate that all relevant topological sectors are correctly sampled without topological freezing.…”

Section: Lattice Details and Methodologymentioning

confidence: 99%

Fate of the η′ in the quark gluon plasma

2019

Self Cite

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In this paper we study the η in N f = 2+1+1 lattice QCD simulations at finite temperature. Results are obtained from the analysis of the gluonic defined topological charge density correlator after gradient flow. Our results indicate the growth of the η mass above the pseudocritical temperature, associated with the chiral symmetry restoration. In the vicinity of the pseudocritical temperature the results are consistent with a small dip in the η mass. The magnitude of the dip is compatible with the reduction of the η mass obtained by experimental analysis and suggests that η mass comes close to zero temperature non-anomalous contribution.

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“…In addition to that, the temperature dependence of the topological susceptibility was analyzed. First N f = 2 + 1 + 1 results appeared in a few conference proceedings [17,18] but this part has remained unfinished since then. An almost up-to-date summary of the tmfT results was given by Florian Burger and Michael in [19] to which I would like to refer the reader for further details.…”

Section: Michael's Scientific Career and Research Topicsmentioning

confidence: 99%

QCD propagators and vertices from lattice QCD (in memory of Michael Müller-Preußker)

Sternbeck

2017

EPJ Web Conf.

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Abstract. We review lattice calculations of the elementary Greens functions of QCD with a special emphasis on the Landau gauge. These lattice results have been of interest to continuum approaches to QCD over the past 20 years. They are used as reference for Dyson-Schwinger-and functional renormalization group equation calculations as well as for hadronic bound state equations. The lattice provides low-energy data for propagators and three-point vertices in Landau gauge at zero and finite temperature even including dynamical fermions. We summarize Michael Müller-Preußker's important contributions to this field and put them into the perspective of his other research interests.

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Topological susceptibility fromN_f= 2 + 1 + 1 lattice QCD at nonzero temperature

Cited by 22 publications

References 7 publications

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Fate of the η′ in the quark gluon plasma

QCD propagators and vertices from lattice QCD (in memory of Michael Müller-Preußker)

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Topological susceptibility fromNf= 2 + 1 + 1 lattice QCD at nonzero temperature

Cited by 22 publications

References 7 publications

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Axion phenomenology and θ-dependence from N f = 2 + 1 lattice QCD

Fate of the η′ in the quark gluon plasma

QCD propagators and vertices from lattice QCD (in memory of Michael Müller-Preußker)

Contact Info

Product

Resources

About

Topological susceptibility fromN_f= 2 + 1 + 1 lattice QCD at nonzero temperature