Topological susceptibility from $N_f=2+1+1$ lattice QCD at nonzero temperature

التفاصيل البيبلوغرافية
العنوان: Topological susceptibility from $N_f=2+1+1$ lattice QCD at nonzero temperature
المؤلفون: Trunin, A., Burger, F., Ilgenfritz, E. -M., Lombardo, M. P., Muller-Preussker, M.
سنة النشر: 2015
المجموعة: High Energy Physics - Lattice
مصطلحات موضوعية: High Energy Physics - Lattice
الوصف: We present results for the topological susceptibility at nonzero temperature obtained from lattice QCD with four dynamical quark flavours. We apply different smoothing methods, including gradient Wilson flow and over--improved cooling, before calculating the susceptibility. It is shown that the considered smoothing techniques basically agree among each other, and that there are simple scaling relations between flow time and the number of cooling/smearing steps. The topological susceptibility exhibits a surprisingly slow decrease at high temperature.
Comment: 2 pages, 1 figure; Contribution to the International Conference `Strangeness in Quark Matter 2015', Dubna, July 6 -- 11, 2015
نوع الوثيقة: Working Paper
DOI: 10.1088/1742-6596/668/1/012123
URL الوصول: http://arxiv.org/abs/1510.02265
رقم الأكسشن: edsarx.1510.02265
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/1742-6596/668/1/012123