The QCD transition temperature: results with physical masses in the continuum limit
| dc.creator | Aoki, Y. | |
| dc.creator | Fodor, Z. | |
| dc.creator | Katz, S. D. | |
| dc.creator | Szabo, K. K. | |
| dc.date | 2006-09-28 | |
| dc.date | 2006-11-28 | |
| dc.date.accessioned | 2026-07-07T11:04:39Z | |
| dc.date.available | 2026-07-07T11:04:39Z | |
| dc.description | The transition temperature ($T_c$) of QCD is determined by Symanzik improved gauge and stout-link improved staggered fermionic lattice simulations. We use physical masses both for the light quarks ($m_{ud}$) and for the strange quark ($m_s$). Four sets of lattice spacings ($N_t$=4,6,8 and 10) were used to carry out a continuum extrapolation. It turned out that only $N_t$=6,8 and 10 can be used for a controlled extrapolation, $N_t$=4 is out of the scaling region. Since the QCD transition is a non-singular cross-over there is no unique $T_c$. Thus, different observables lead to different numerical $T_c$ values even in the continuum and thermodynamic limit. The peak of the renormalized chiral susceptibility predicts $T_c$=151(3)(3) MeV, wheres $T_c$-s based on the strange quark number susceptibility and Polyakov loops result in 24(4) MeV and 25(4) MeV larger values, respectively. Another consequence of the cross-over is the non-vanishing width of the peaks even in the thermodynamic limit, which we also determine. These numbers are attempted to be the full result for the $T$$\neq$0 transition, though other lattice fermion formulations (e.g. Wilson) are needed to cross-check them. | |
| dc.description | 13 pages 5 figures. Final version, published in Phys.Lett.B | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0609068 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0609068 | |
| dc.identifier | Phys.Lett.B643:46-54,2006 | |
| dc.identifier | doi:10.1016/j.physletb.2006.10.021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188965 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | The QCD transition temperature: results with physical masses in the continuum limit | |
| dc.type | text |