TY - JOUR
T1 - Small flow-time representation of fermion bilinear operators
AU - Hieda, Kenji
AU - Suzuki, Hiroshi
N1 - Funding Information:
We would like to thank Shinji Ejiri, Kazayuki Kanaya, Masakiyo Kitazawa, Hiroki Makino, Yusuke Taniguchi, Takashi Umeda and especially Kazuo Fujikawa for valuable discussions which motivated this work. H.S. would like to thank the Department of Physics at National Taiwan University, where a part of this work was carried out, for their kind hospitality. The work of H.S. is supported in part by JSPS Grants-in-Aid for Scientific Research Grant No. JP16H03982.
Publisher Copyright:
© 2016 World Scientific Publishing Company.
PY - 2016/12/14
Y1 - 2016/12/14
N2 - Fermion bilinear operators of mass dimension 3, such as the axial-vector and vector currents, the pseudo-scalar and scalar densities, whose normalizations are fixed by Ward-Takahashi (WT) relations, are related to small flow-time behavior of composite operators of fermion fields evolved by Lüscher's flow equation. The representations can be useful in lattice numerical simulations, as recently demonstrated by the WHOT QCD collaboration for the chiral condensation of the Nf = 2 + 1 quantum chromodynamics (QCD) at finite temperature.
AB - Fermion bilinear operators of mass dimension 3, such as the axial-vector and vector currents, the pseudo-scalar and scalar densities, whose normalizations are fixed by Ward-Takahashi (WT) relations, are related to small flow-time behavior of composite operators of fermion fields evolved by Lüscher's flow equation. The representations can be useful in lattice numerical simulations, as recently demonstrated by the WHOT QCD collaboration for the chiral condensation of the Nf = 2 + 1 quantum chromodynamics (QCD) at finite temperature.
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U2 - 10.1142/S021773231650214X
DO - 10.1142/S021773231650214X
M3 - Article
AN - SCOPUS:84995388311
SN - 0217-7323
VL - 31
JO - Modern Physics Letters A
JF - Modern Physics Letters A
IS - 38
M1 - 1650214
ER -