# Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions

Umeda T, Ejiri S, Kanaya K, Maezawa Y, Nakagawa Y, Ohno H, Saito H, Yoshida S (2013)
In: PoS., LATTICE 2013. 450.

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Abstract
We study scaling behavior of a chiral order parameter in the low densityregion, performing a simulation of two-flavor QCD with improved Wilson quarks.The scaling behavior of the chiral order parameter defined by a Ward-Takahashiidentity agrees with the scaling function of the three-dimensional O(4) spinmodel at zero chemical potential. We extend the scaling study to finite densityQCD. Applying the reweighting method and calculating derivatives of the chiralorder parameter with respect to the chemical potential, the scaling propertiesof the chiral phase transition are discussed in the low density region. Wemoreover calculate the curvature of the phase boundary of the chiral phasetransition in the temperature and chemical potential plane assuming the O(4)scaling relation.
Publishing Year
Conference
31st International Symposium on Lattice Field Theory (Lattice 2013)
Location
Mainz, Germany
Conference Date
2013-07-29 – 2013-08-03
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Umeda T, Ejiri S, Kanaya K, et al. Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions. In: PoS. Vol LATTICE 2013. 2013: 450.
Umeda, T., Ejiri, S., Kanaya, K., Maezawa, Y., Nakagawa, Y., Ohno, H., Saito, H., et al. (2013). Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions. PoS, LATTICE 2013, 450
Umeda, T., Ejiri, S., Kanaya, K., Maezawa, Y., Nakagawa, Y., Ohno, H., Saito, H., and Yoshida, S. (2013). “Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions” in PoS, vol. LATTICE 2013, 450.
Umeda, T., et al., 2013. Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions. In PoS. no.LATTICE 2013 pp. 450.
T. Umeda, et al., “Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions”, PoS, vol. LATTICE 2013, 2013, pp.450.
Umeda, T., Ejiri, S., Kanaya, K., Maezawa, Y., Nakagawa, Y., Ohno, H., Saito, H., Yoshida, S.: Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions. PoS. LATTICE 2013, p. 450. (2013).
Umeda, T., Ejiri, S., Kanaya, K., Maezawa, Yu, Nakagawa, Y., Ohno, H., Saito, H., and Yoshida, S. “Scaling properties of the chiral phase transition in the low density region of two-flavor QCD with improved Wilson fermions”. PoS. 2013.Vol. LATTICE 2013. 450.
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