کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10725034 1034072 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Topological susceptibility in lattice QCD with unimproved Wilson fermions
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Topological susceptibility in lattice QCD with unimproved Wilson fermions
چکیده انگلیسی
We address a long standing problem regarding topology in lattice simulations of QCD with unimproved Wilson fermions. Earlier attempt with unimproved Wilson fermions at β=5.6 to verify the suppression of topological susceptibility with decreasing quark mass (mq) was unable to unambiguously confirm the suppression. We carry out systematic calculations for two degenerate flavours at two different lattice spacings (β=5.6 and 5.8). The effects of quark mass, lattice volume and the lattice spacing on the spanning of different topological sectors are presented. We unambiguously demonstrate the suppression of the topological susceptibility with decreasing quark mass, expected from chiral Ward identity and chiral perturbation theory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 707, Issue 1, 16 January 2012, Pages 228-232
نویسندگان
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