标题： 格点QCD中的重离子碰撞涨落、奇异性与拟夸克 显示英文标题

标题： Fluctuations, strangeness and quasi-quarks in heavy-ion collisions from lattice QCD

摘要： 我们报告了关于重子数、电荷、同位旋第三分量、奇异数、超荷的对角磁化率χ_B、χ_Q、χ_I、χ_S、χ_Y以及非对角磁化率χ_BQ、χ_BY、χ_BS等的测量结果。 我们表明高温度相中的磁化率比值是鲁棒变量，与格点间距无关，因此可以为实验提供预测。 我们还研究了有限温度下的奇异数产生和味对称性破缺矩阵元。 最后，我们提供了证据表明，在量子色动力学的高温相中，不同的味量子数是以与预期相同的关联方式被激发的，这些关联方式是从夸克中预期的。 我们还介绍了一些关于这些类似夸克准粒子的研究工作。 显示英文摘要

摘要： We report measurements of diagonal susceptibilities for the baryon number, chi_B, electrical charge, chi_Q, third component of isospin, chi_I, strangeness, chi_S, and hypercharge, chi_Y, as well as the off-diagonal chi_BQ, chi_BY, chi_BS, etc. We show that the ratios of susceptibilities in the high temperature phase are robust variables, independent of lattice spacing, and therefore give predictions for experiments. We also investigate strangeness production and flavour symmetry breaking matrix elements at finite temperature. Finally, we present evidence that in the high temperature phase of QCD the different flavour quantum numbers are excited in linkages which are exactly the same as one expects from quarks. We present some investigations of these quark-like quasi particles.