The order of the chiral transition in

✍ Scribed by M. D'Elia; A. Di Giacomo; C. Pica

• Book ID: 104071017
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 830 KB
• Volume: 140
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2004.11.363

✦ Synopsis

The order of the chiral transition for N f = 2 is an interesting probe of the QCD vacuum. A strategy is developed to investigate the order of the transition using finite size scaling and its relation to color confinement. An in-depth numerical investigation has been performed with KS fermions on lattices with Nt = 4 and Ns = 12, 16, 20, 24, 32 and quark masses amq ranging from 0.01335 to 0.35. The specific heat and a number of susceptibilities have been measured and compared with the expectation of an O( 4) second order and a first order phase transition. A second order O( 4) is excluded, whilst data are consistent with a first order. * Contribution based on the talks presented by A. Di Giacomo and C. Pica.