Exploring criticality in the QCD-like two quark flavor models
نویسندگان
چکیده
منابع مشابه
Quark condensate in two-flavor QCD
We compute the condensate in QCD with two flavors of dynamical fermions using numerical simulation. The simulations use overlap fermions, and the condensate is extracted by fitting the distribution of low lying eigenvalues of the Dirac operator in sectors of fixed topological charge to the predictions of Random Matrix Theory.
متن کاملQuark masses in two-flavor QCD
Considered as a function of the quark mases, two-flavor QCD depends on three parameters, including one that is CP violating. As the masses vary to unphysical values, regions of both firstand second-order phase transitions are expected. For non-degenerate quarks, non-perturbative effects leave individual quark mass ratios with a renormalization scheme dependence. This complicates matching lattic...
متن کاملRunning quark mass in two flavor QCD ∗
We present first results for the step scaling function σP of the renormalization factor ZP of the pseudoscalar density. The simulations are performed within the framework of the Schrödinger functional with two flavors of O(a) improved Wilson fermions. The knowledge of σP is required to compute the renormalization group invariant quark masses. We also study the performance of a variant of the HM...
متن کاملQuark mass dependence of two-flavor QCD
I explore the rich phase diagram of two-flavor QCD as a function of the quark masses. The theory involves three parameters, including one that is CP violating. As the masses vary, regions of both firstand second-order transitions are expected. For nondegenerate quarks, nonperturbative effects cease to be universal, leaving individual quark mass ratios with a renormalization scheme dependence. T...
متن کاملQuark Confinement and Deconfinement Transition in Large Flavor QCD
We give a new criterion of quark confinement/deconfinement by deriving a low-energy effective theory of QCD. The effective theory can explain Abelian dominance in low-energy physics of QCD, especially, quark confinement. Finally, we apply the above criterion to the large flavor QCD and discuss its phase structure. The result suggests the existence of conformal phase.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2012
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.86.094032