The Chiral critical point in three-flavor QCD
Jul, 200116 pages
Published in:
- Phys.Lett.B 520 (2001) 41-49
e-Print:
- hep-lat/0107020 [hep-lat]
Report number:
- BI-TP-2001-15
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Abstract:
We determine the second order endpoint of the line of first order phase transitions, which occur in the light quark mass regime of 3-flavour QCD at finite temperature, and analyze universal properties of this chiral critical point. A detailed analysis of Binder cumulants and the joint probability distributions of energy like and ordering-field like observables confirms that the chiral critical point belongs to the universality class of the three dimensional Ising model. From a calculation with improved gauge and staggered fermion actions we estimate that the transition is first order for pseudo-scalar meson masses less than about 200 MeV.Note:
- 16 pages, LaTeX2e File, 7 EPS-files Report-no: BI-TP 2001/15
- fermion: lattice field theory
- gauge field theory: SU(3)
- dimension: 4
- flavor: 3
- critical phenomena: chiral
- finite temperature
- scaling
- cumulant expansion
- universality
- Ising model
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