QCD phase diagram for small densities from simulations at imaginary $\mu$

We present results on the QCD phase diagram for small densities without reweighting. Our simulations are performed with an imaginary chemical potential mu_I for which the fermion determinant is positive. On an 8^3x4 lattice with 2 flavors of staggered quarks, we map out the pseudo-critical temperatu...

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Detalles Bibliográficos
Autores principales: de Forcrand, P., Philipsen, O.
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(03)01607-4
http://cds.cern.ch/record/579945
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author de Forcrand, P.
Philipsen, O.
author_facet de Forcrand, P.
Philipsen, O.
author_sort de Forcrand, P.
collection CERN
description We present results on the QCD phase diagram for small densities without reweighting. Our simulations are performed with an imaginary chemical potential mu_I for which the fermion determinant is positive. On an 8^3x4 lattice with 2 flavors of staggered quarks, we map out the pseudo-critical temperature T_c(mu_I). For mu_I/T < pi/3, this is an analytic function whose Taylor expansion converges rapidly, with truncation errors smaller than statistical ones. The result is analytically continued to give the location of the pseudo-critical line for real mu_B<500 MeV.
id cern-579945
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
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spelling cern-5799452023-03-14T17:05:07Zdoi:10.1016/S0920-5632(03)01607-4http://cds.cern.ch/record/579945engde Forcrand, P.Philipsen, O.QCD phase diagram for small densities from simulations at imaginary $\mu$Particle Physics - LatticeWe present results on the QCD phase diagram for small densities without reweighting. Our simulations are performed with an imaginary chemical potential mu_I for which the fermion determinant is positive. On an 8^3x4 lattice with 2 flavors of staggered quarks, we map out the pseudo-critical temperature T_c(mu_I). For mu_I/T < pi/3, this is an analytic function whose Taylor expansion converges rapidly, with truncation errors smaller than statistical ones. The result is analytically continued to give the location of the pseudo-critical line for real mu_B<500 MeV.We present results on the QCD phase diagram for small densities without reweighting. Our simulations are performed with an imaginary chemical potential mu_I for which the fermion determinant is positive. On an 8^3x4 lattice with 2 flavors of staggered quarks, we map out the pseudo-critical temperature T_c(mu_I). For mu_I/T < pi/3, this is an analytic function whose Taylor expansion converges rapidly, with truncation errors smaller than statistical ones. The result is analytically continued to give the location of the pseudo-critical line for real mu_B<500 MeV.hep-lat/0209084MIT-CTP-3303MIT-CTP-3303CERN-TH-2002-279oai:cds.cern.ch:5799452002-09-06
spellingShingle Particle Physics - Lattice
de Forcrand, P.
Philipsen, O.
QCD phase diagram for small densities from simulations at imaginary $\mu$
title QCD phase diagram for small densities from simulations at imaginary $\mu$
title_full QCD phase diagram for small densities from simulations at imaginary $\mu$
title_fullStr QCD phase diagram for small densities from simulations at imaginary $\mu$
title_full_unstemmed QCD phase diagram for small densities from simulations at imaginary $\mu$
title_short QCD phase diagram for small densities from simulations at imaginary $\mu$
title_sort qcd phase diagram for small densities from simulations at imaginary $\mu$
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0920-5632(03)01607-4
http://cds.cern.ch/record/579945
work_keys_str_mv AT deforcrandp qcdphasediagramforsmalldensitiesfromsimulationsatimaginarymu
AT philipseno qcdphasediagramforsmalldensitiesfromsimulationsatimaginarymu

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