Baryon number and charge fluctuations from lattice QCD

Schmidt C (2013)
In: Nuclear Physics A. 904-905. 865c-868c.

Conference Paper | Published | English

No fulltext has been uploaded

Abstract
We calculate electric and baryonic charge fluctuations on the lattice. Results have been obtained with the highly improved staggered quark action (HISQ) and almost physical quark masses on lattices with spacial extent of Nτ=6,8,12. Higher order cumulants of the net-charge distributions are increasingly dominated by a universal scaling behavior, which is arising due to a critical point of QCD in the chiral limit. Considering cumulants up to the sixth order, we observe that they generically behave as expected from universal scaling laws, which is quite different from the cumulants calculated within the hadron resonance gas model. Taking ratios of these cumulants, we obtain volume independent results that can be compared to the experimental measurements. Such a comparison will unambiguously relate the QCD transition temperature that has been determined on the lattice with the freeze out temperature of heavy ion collision at LHC and RHIC. We calculate electric and baryonic charge fluctuations on the lattice. Results have been obtained with the highly improved staggered quark action (HISQ) and almost physical quark masses on lattices with spacial extent of N_@t=6,8,12. Higher order cumulants of the net-charge distributions are increasingly dominated by a universal scaling behavior, which is arising due to a critical point of QCD in the chiral limit. Considering cumulants up to the sixth order, we observe that they generically behave as expected from universal scaling laws, which is quite different from the cumulants calculated within the hadron resonance gas model. Taking ratios of these cumulants, we obtain volume independent results that can be compared to the experimental measurements. Such a comparison will unambiguously relate the QCD transition temperature that has been determined on the lattice with the freeze out temperature of heavy ion collision at LHC and RHIC.
Publishing Year
ISSN
PUB-ID

Cite this

Schmidt C. Baryon number and charge fluctuations from lattice QCD. In: Nuclear Physics A. Vol 904-905. 2013: 865c-868c.
Schmidt, C. (2013). Baryon number and charge fluctuations from lattice QCD. Nuclear Physics A, 904-905, 865c-868c.
Schmidt, C. (2013). “Baryon number and charge fluctuations from lattice QCD” in Nuclear Physics A, vol. 904-905, 865c-868c.
Schmidt, C., 2013. Baryon number and charge fluctuations from lattice QCD. In Nuclear Physics A. no.904-905 pp. 865c-868c.
C. Schmidt, “Baryon number and charge fluctuations from lattice QCD”, Nuclear Physics A, vol. 904-905, 2013, pp.865c-868c.
Schmidt, C.: Baryon number and charge fluctuations from lattice QCD. Nuclear Physics A. 904-905, p. 865c-868c. (2013).
Schmidt, Christian. “Baryon number and charge fluctuations from lattice QCD”. Nuclear Physics A. 2013.Vol. 904-905. 865c-868c.
This data publication is cited in the following publications:
This publication cites the following data publications:

Export

0 Marked Publications

Open Data PUB

Web of Science

View record in Web of Science®

Sources

arXiv 1212.4278

Inspire 1207889

Search this title in

Google Scholar