Meson screening masses from lattice QCD with two light quarks and one strange quark

Cheng M, Datta S, Francis A, van der Heide J, Jung C, Kaczmarek O, Karsch F, Laermann E, Mawhinney RD, Miao C, Mukherjee S, et al. (2011)
European Physical Journal C 71(2): 1-13.

Journal Article | Published | English

No fulltext has been uploaded

Author
; ; ; ; ; ; ; ; ; ; ;
All
Abstract
We present results for screening masses of mesons built from light and strange quarks in the temperature range of approximately between 140 MeV to 800 MeV. The lattice computations were performed with 2 + 1 dynamical light and strange flavors of improved (p4) staggered fermions along a line of constant physics defined by a pion mass of about 220 MeV and a kaon mass of 500 MeV. The lattices had temporal extents N-tau = 4, 6 and 8 and aspect ratios of N-s/N-tau = 4. At least up to a temperature of 140 MeV the pseudo-scalar screening mass remains almost equal to the corresponding zero temperature pseudo-scalar (pole) mass. At temperatures around 3T(c) (T-c being the transition temperature) the continuum extrapolated pseudo-scalar screening mass approaches very close to the free continuum result of 2 pi T from below. On the other hand, at high temperatures the vector screening mass turns out to be larger than the free continuum value of 2pT. The pseudo-scalar and the vector screening masses do not become degenerate even for a temperature as high as 4T(c). Using these mesonic spatial correlation functions we have also investigated the restoration of chiral symmetry and the effective restoration of the axial symmetry. We have found that the vector and the axial-vector screening correlators become degenerate, indicating chiral symmetry restoration, at a temperature which is consistent with the QCD transition temperature obtained in previous studies. On the other hand, the pseudo-scalar and the scalar screening correlators become degenerate only at temperatures larger than 1.3T(c), indicating that the effective restoration of the axial symmetry takes place at a temperature larger than the QCD transition temperature.
Publishing Year
ISSN
eISSN
PUB-ID

Cite this

Cheng M, Datta S, Francis A, et al. Meson screening masses from lattice QCD with two light quarks and one strange quark. European Physical Journal C. 2011;71(2):1-13.
Cheng, M., Datta, S., Francis, A., van der Heide, J., Jung, C., Kaczmarek, O., Karsch, F., et al. (2011). Meson screening masses from lattice QCD with two light quarks and one strange quark. European Physical Journal C, 71(2), 1-13.
Cheng, M., Datta, S., Francis, A., van der Heide, J., Jung, C., Kaczmarek, O., Karsch, F., Laermann, E., Mawhinney, R. D., Miao, C., et al. (2011). Meson screening masses from lattice QCD with two light quarks and one strange quark. European Physical Journal C 71, 1-13.
Cheng, M., et al., 2011. Meson screening masses from lattice QCD with two light quarks and one strange quark. European Physical Journal C, 71(2), p 1-13.
M. Cheng, et al., “Meson screening masses from lattice QCD with two light quarks and one strange quark”, European Physical Journal C, vol. 71, 2011, pp. 1-13.
Cheng, M., Datta, S., Francis, A., van der Heide, J., Jung, C., Kaczmarek, O., Karsch, F., Laermann, E., Mawhinney, R.D., Miao, C., Mukherjee, S., Petreczky, P., Rantaharju, J., Schmidt, C., Soeldner, W.: Meson screening masses from lattice QCD with two light quarks and one strange quark. European Physical Journal C. 71, 1-13 (2011).
Cheng, M., Datta, S., Francis, Anthony, van der Heide, J., Jung, C., Kaczmarek, Olaf, Karsch, Frithjof, Laermann, Edwin, Mawhinney, R. D., Miao, C., Mukherjee, S., Petreczky, P., Rantaharju, J., Schmidt, Christian, and Soeldner, W. “Meson screening masses from lattice QCD with two light quarks and one strange quark”. European Physical Journal C 71.2 (2011): 1-13.
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 1010.1216

Inspire 871826

Search this title in

Google Scholar