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Phase transition(s) in finite density QCD

✍ Scribed by R Aloisio; V Azcoiti; G Di Carlo; A Galante; A.F Grillo

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
472 KB
Volume
642
Category
Article
ISSN
0375-9474

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✦ Synopsis

The Grand Canonical formalism is generally used in numerical simulations of finite density QCD since it allows free mobility in the chemical potential p. We show that special care has to be used in extracting numerical results to avoid dramatic rounding effects and spurious transition signals.

If we analyze data correctly, with reasonable statistics, no signal of first order phase transition is present and results using the Glasgow prescription are practically coincident with the ones obtained using the modulus of the fermionic determinant.

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We study the thermal properties of QCD in the presence of a small quark chemical potential ,L Derivatives of the phase transition point with respect to p are computed at /.L = 0 for 2 and 3 flavors of p-4 improved staggered fermions on a 163 x 4 lattice. Moreover we contrast the case of isoscalar an