Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-01-10
Phys.Rev. C66 (2002) 034903
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 4 figures; discussion of the two-point function of Polyakov Loops in small versus large systems added
Scientific paper
10.1103/PhysRevC.66.034903
We perform a field-theoretical computation of hadron production in large systems at the QCD confinement phase transition associated with restoration of the Z(3) global symmetry. This occurs from the decay of a condensate for the Polyakov loop. From the effective potential for the Polyakov loop, its mass just below the confinement temperature T_c is in between the vacuum masses of the pion and that of the kaon. Therefore, due to phase-space restrictions the number of produced kaons is roughly an order of magnitude smaller than that of produced pions, in agreement with recent results from collisions of gold ions at the BNL-RHIC. From its mass, we estimate that the Polyakov loop condensate is characterized by a (spatial) correlation scale of 1/m_\ell ~ 1/2 fm. For systems of deconfined matter of about that size, the free energy may not be dominated by a condensate for the Polyakov loop, and so the process of hadronization may be qualitatively different as compared to large systems. In that vein, experimental data on hadron abundance ratios, for example K/pi, in high-multiplicity pp events at high energies should be very interesting.
Dumitru Adrian
Lenaghan Jonathan T.
Scavenius Ove
No associations
LandOfFree
The K/pi ratio from condensed Polyakov loops 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 The K/pi ratio from condensed Polyakov loops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The K/pi ratio from condensed Polyakov loops will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-201221