Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2011-10-26
Physics
High Energy Physics
High Energy Physics - Lattice
3 pages, 5 figures. Talk given at the 19th Particles & Nuclei International Conference (PANIC 2011), held at the Massachusetts
Scientific paper
We present results for the lowest-order non-vanishing quark number susceptibilities. These were calculated using an improved action viz. the HISQ action, which controls taste violations that are responsible for distorting the light meson spectrum. Our calculations, with a pion mass of 160 MeV, are also much closer to the physical limit than previous studies. We find a broad crossover from the hadronic to the quark regimes, although interactions remain significant even at the highest temperatures studied. Our results are also in good agreement with Hadron Resonance Gas models below the crossover temperature.
for the HotQCD Collaboration
Hegde Prasad
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