@article{oai:tsukuba.repo.nii.ac.jp:00032735,
 author = {Jin, Xiao-Yong and Kuramashi,  Yoshinobu and 藏増, 嘉伸 and Nakamura, Yoshifumi and Takeda, Shinji and Ukawa, Akira and 宇川, 彰},
 issue = {1},
 journal = {Physical review D},
 month = {Jan},
 note = {We investigate the critical endpoint of finite temperature phase transition of N_f=3 QCD at zero chemical potential. We employ the renormalization-group improved Iwasaki gauge action and nonperturbatively O(a)-improved Wilson-clover fermion action. The critical endpoint is determined by using the intersection point of kurtosis for the temporal size N_t= 4, 6, 8. Spatial sizes of  N_l= 6–16 (N_t= 4), 10–24 (N_t= 6), and 12–24 (N_t= 8) are employed. We find that N_t=4 is out of the scaling region. Using results for N_t= 6 and 8 and making linear extrapolations in 1=N_t^2, we obtain √(t_0 ) T_E= 0.0988(14)(9), √(t_0 ) m_(PS,E)=0.2274(52)(108), and m_(PS,E)/T_E= 2.302(62)(13), where the first error is statistical error, the second error is systematic error, and m_PS is the pseudoscalar meson mass. If one uses 1/√(t_0 )=1.347(30) GeV, as reported by Borsanyi et al., one finds T_E=133(2)(1)(3) MeV, m_(PS,E)=306(7)(14)(7) MeV, and  m_(PS,E)=m_PS^(phys,sym)=0.745(17)(35)(17), where the third error comes from the error of √(t_0 ) and m_PS^(phys,sym)=√(〖(m〗_π^2+〖2m〗_K^2)/3). Our current estimation of √(t_0 ) m_(PS,E) in the continuum limit is about 25% smaller than the SU(3) symmetric point.},
 title = {Critical endpoint of the finite temperature phase transition for three flavor QCD},
 volume = {91},
 year = {2015},
 yomi = {クラマシ, ヨシノブ}
}