ar X iv : 0 90 1 . 30 18 v 1 [ he p - la t ] 2 0 Ja n 20 09 The curvature of the QCD phase transition line
نویسنده
چکیده
We determine the curvature of the phase transition line in the μ −T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second derivative of these quantities with respect to μ was calculated. The measurements were carried out on NT = 4,6,8 and 10 lattices generated with a Symanzik improved gauge and stout-link improved 2+1 flavour staggered fermion action using physical quark masses.
منابع مشابه
ar X iv : 0 90 1 . 30 18 v 2 [ he p - la t ] 2 2 Ja n 20 09 The curvature of the QCD phase transition line
We determine the curvature of the phase transition line in the μ −T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second derivative of these quantities with respect to μ was calculated. The measurements were carried out on NT = 4,6,8 and 10 lattices generated with a Symanzik i...
متن کاملar X iv : 0 71 0 . 09 98 v 1 [ he p - la t ] 4 O ct 2 00 7 The nature of the finite temperature QCD transition as a function of the quark masses
The finite temperature QCD transition for physical quark masses is a crossover. For smaller quark masses a first-order phase transition is expected. Using Symanzik improved gauge and stout improved fermion action for 2+1 flavour staggered QCD we give estimates/bounds for the phase line separating the first-order region from the crossover one. The calculations are carried out on two different la...
متن کاملar X iv : 0 90 6 . 18 47 v 1 [ he p - la t ] 1 0 Ju n 20 09 Physical matrix elements for ∆ I = 3 / 2 channel K → ππ decays
are calculated on the RBC/UKQCD 32 3 × 64, L s = 16 lattices, using 2+1 dynamical flavors and domain wall fermions, with an inverse lattice spacing of a −1 = 2.42(4) GeV. Data is interpolated or extrapolated to energy conserving kinematics and a preliminary calculation of the experimental parameter |A 2 | is performed.
متن کاملar X iv : 0 90 6 . 18 47 v 2 [ he p - la t ] 1 1 Ju n 20 09 Physical matrix elements for ∆ I = 3 / 2 channel K → ππ decays
are calculated on the RBC/UKQCD 32 3 × 64, L s = 16 lattices, using 2+1 dynamical flavors and domain wall fermions, with an inverse lattice spacing of a −1 = 2.42(4) GeV. Data is interpolated or extrapolated to energy conserving kinematics and a preliminary calculation of the experimental parameter |A 2 | is performed.
متن کاملar X iv : 0 71 0 . 09 85 v 1 [ he p - la t ] 4 O ct 2 00 7 Hard Hadron spectroscopy
I review lattice QCD calculations that compute the masses of the flavour singlet pseudoscalar mesons. I describe the progress in computing the mass spectrum of light 0 ++ mesons using lattice QCD. I also compare the results for basic quantities such as f π and m ρ , from various different formalisms of lattice QCD. I discuss the physical value of r 0 .
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008