Chiral phase transition in three-flavor QCD from lattice QCD

Dini, Lorenzo; Hegde, Prasad; Karsch, Frithjof; Lahiri, Anirban; Schmidt, Christian; Sharma, Sipaz

doi:10.1103/PhysRevD.105.034510

Chiral phase transition in three-flavor QCD from lattice QCD

Lorenzo Dini
(
- Bielefeld U.
)
,
Prasad Hegde
(
- Bangalore, Indian Inst. Sci.
)
,
Frithjof Karsch
(
- Bielefeld U.
)
,
Anirban Lahiri
(
- Bielefeld U.
)
,
Christian Schmidt
(
- Bielefeld U.
)

Nov 24, 2021

12 pages

Published in:

Phys.Rev.D 105 (2022) 3, 034510

Published: Feb 1, 2022

e-Print:

2111.12599 [hep-lat]

DOI:

10.1103/PhysRevD.105.034510 (publication)

View in:

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Abstract: (APS)

We analyze the pseudocritical behavior of three-flavor QCD using highly improved staggered quarks on lattices with temporal extent

N_{τ} = 8

and for quark masses corresponding to a pseudoscalar Goldstone mass in the range

80 MeV ≲ m_{π} ≲ 140 MeV

. Our findings are consistent with the occurrence of a second order chiral phase transition at vanishing values of the quark masses. The chiral phase transition temperature at this finite value of the lattice spacing is determined to be

T_{c} = 98_{- 6}^{+ 3} MeV

. A comparison with a corresponding analysis performed in (

2 + 1

)-flavor QCD suggests that the continuum limit extrapolated chiral phase transition temperature in three-flavor QCD will turn out to be below 90 MeV.

Note:

12 pages, 11 figures. Corrected a few typos, cited two new references and added a reference for data publication. Corrected a typo in Eq. 3

critical phenomena: chiral
critical phenomena: temperature
quark: mass
quark: staggered
quantum chromodynamics
flavor: 3
lattice
lattice field theory
continuum limit
pseudoscalar

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