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Second order cumulants of conserved charge fluctuations revisited I. Vanishing chemical potentials

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arxiv 2107.10011 v2 pith:KHQ6I3FT submitted 2021-07-21 hep-lat hep-phnucl-th

D. Bollweg , J. Goswami , O. Kaczmarek , F. Karsch , Swagato Mukherjee , P. Petreczky , C. Schmidt , P. Scior This is my paper · ORCID
classification hep-lathep-phnucl-th
keywords resultschargechemicalconservedpotentialsbaryoncumulantsfluctuations
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We update lattice QCD results for second order cumulants of conserved charge fluctuations and correlations at non-zero temperature and vanishing values of the conserved charge chemical potentials. We compare these results to hadron resonance gas calculations with and without excluded volume terms as well as S-matrix results in the hadronic phase of QCD, and comment on their current limitations. We, furthermore, use these results to characterize thermal conditions in the vicinity of the pseudo-critical line of the chiral transition in QCD. We argue that the ratio of strange to baryon chemical potentials is a robust observable that, on the one hand, deviates only little from hadron resonance gas results, but, on the other hand, is very sensitive to the spectrum of strange baryon resonances.

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Cited by 5 Pith papers

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