TY - JOUR
T1 - Strong coupling analysis of aoki phase in staggered-wilson fermions
AU - Nakano, Takashi Z.
AU - Misumi, Tatsuhiro
AU - Kimura, Taro
AU - Ohnishi, Akira
N1 - Funding Information:
(JSPS) Research Fellows (Nos. 22-3314, 23-593.). TM is supported by Grant-in-Aid for the Japan Society for Promotion of Science (JSPS) Postdoctoral Fellows for Research Abroad (24-8). This work is supported in part by the Grants-in-Aid for Scientific Research from JSPS and the Ministry of Education, Culture, Sports, Science and Technology (MEXT) (Nos. 09J01226, 10J03314, 11J00593, 23340067, 24340054, 24540271, and Innovative Areas (No. 2404: 24105001, 24105008) ), by the Yukawa International Program for Quark-hadron Sciences, and by the Grant-in-Aid for the global COE program “The Next Generation of Physics, Spun from Universality and Emergence" from MEXT.
PY - 2012
Y1 - 2012
N2 - We study strong-coupling lattice QCD with staggered-Wilson fermions, with an emphasis on the possibility of spontaneous parity breaking. We perform effective potential analysis in the strong-coupling limit. From gap equations we find the pion condensate becomes nonzero in some range of a mass parameter, which indicates the existence of the parity-broken phase. We also find massless pions and PCAC relations around the second-order phase boundary. These results suggest that we can take the chiral limit by tuning a mass parameter in lattice QCD with staggered-Wilson fermions as with the Wilson fermion.
AB - We study strong-coupling lattice QCD with staggered-Wilson fermions, with an emphasis on the possibility of spontaneous parity breaking. We perform effective potential analysis in the strong-coupling limit. From gap equations we find the pion condensate becomes nonzero in some range of a mass parameter, which indicates the existence of the parity-broken phase. We also find massless pions and PCAC relations around the second-order phase boundary. These results suggest that we can take the chiral limit by tuning a mass parameter in lattice QCD with staggered-Wilson fermions as with the Wilson fermion.
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M3 - Conference article
AN - SCOPUS:85030095338
SN - 1824-8039
VL - Part F130497
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 174
T2 - 30th International Symposium on Lattice Field Theory, Lattice 2012
Y2 - 24 June 2012 through 29 June 2012
ER -