Bulk thermodynamics and charge fluctuations at non-vanishing baryon density

Details Bulk thermodynamics and charge fluctuations at non-vanishing baryon density Bulk thermodynamics and charge fluctuations at non-vanishing baryon density

2007-10-23

arxiv.org/abs/0710.4312v1

PoSLAT2007:175,2007

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, 16 plots. Presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg,

Scientific paper

We present results on bulk thermodynamic quantities as well as net baryon number, strangeness and electric charge fluctuations in QCD at non-zero density and temperature obtained from lattice calculations with almost physical quark masses for two values of the lattice cut-off $aT=1/4$ and 1/6 . We show that with our improved p4fa3-action the cut-off effects are under control when using lattices with a temporal extent of 6 or larger and that the contribution to the equation of state, which is due to a finite chemical potential is small for $\mu_q/T<1$. Moreover, at vanishing chemical potential, i.e. under conditions almost realized at RHIC and the LHC, quartic fluctuations of net baryon number and strangeness are large in a narrow temperature interval characterizing the transition region from the low to high temperature phase. At non-zero baryon number density, strangeness fluctuations are enhanced and correlated to fluctuations of the net baryon number. If strangeness is furthermore forced to vanish, as it may be the case in systems created in heavy ion collisions, strangeness fluctuations are significantly smaller than baryon number fluctuations.

Affiliated with

Also associated with

No associations

Rating

Bulk thermodynamics and charge fluctuations at non-vanishing baryon density does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Bulk thermodynamics and charge fluctuations at non-vanishing baryon density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulk thermodynamics and charge fluctuations at non-vanishing baryon density will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-456397