RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearing

doi:10.1103/PhysRevD.108.054506

RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearing

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Abstract

On configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct the overlap Dirac operator. We investigate the possible effects of the smearing on discretization errors in the RCs by varying the level of smearing from 0 to 1 and 2. The lattice is of size 323×64 and with lattice spacing 1/a=2.383(9) GeV. The RCs in the MS¯ scheme at 2 GeV are given at the end, with the uncertainty of ZT reaching ≤1% for the tensor current. Results of the renormalized quark masses and hadron matrix elements show that the renormalization procedure suppresses the ∼30% difference of the bare quantities with or without HYP smearing into the 3%-5% level.

Original language	English
Article number	054506
Journal	Physical Review D
Volume	108
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.108.054506
State	Published - Sep 1 2023

Bibliographical note

Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Funding

We thank RBC-UKQCD collaborations for sharing the domain wall fermion configurations. This work is supported in part by National Key Research and Development Program of China under Contract No. 2020YFA0406400 and by the National Natural Science Foundation of China (NNSFC) under Grants No. 12075253, No. 11935017, No. 12192264, No. 12293060, No. 12293065, No. 12047503, No. 12293062 and No. 12070131001 (CRC 110 by DFG and NNSFC). K. L. is supported by the U.S. DOE Grant No. DE-SC0013065 and DOE Grant No. DEAC05-06OR23177, which is within the framework of the TMD Topical Collaboration. Y. Y. is supported in part by the Strategic Priority Research Program of Chinese Academy of Sciences under Grants No. XDB34030303 and No. XDPB15, and a NSFC-DFG joint grant under Grant No. 12061131006 and SCHA 458/22. The gwu code is acknowledged. The computations were performed on the HPC clusters at Institute of High Energy Physics (Beijing) and China Spallation Neutron Source (Dongguan). Part of the calculations were performed through HIP programming model on the ORISE Supercomputer.

Funders	Funder number
NSFC-DFG	12061131006, SCHA 458/22
U.S. Department of Energy EPSCoR	DEAC05-06OR23177, DE-SC0013065
Deutsche Forschungsgemeinschaft
National Natural Science Foundation of China (NSFC)	12293060, 12047503, 12070131001, 12075253, 12293065, 11935017, 12192264, 12293062
Chinese Academy of Sciences	XDB34030303, XDPB15
National Key Basic Research and Development Program of China	2020YFA0406400

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.108.054506

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title = "RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearing",

abstract = "On configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct the overlap Dirac operator. We investigate the possible effects of the smearing on discretization errors in the RCs by varying the level of smearing from 0 to 1 and 2. The lattice is of size 323×64 and with lattice spacing 1/a=2.383(9) GeV. The RCs in the MS¯ scheme at 2 GeV are given at the end, with the uncertainty of ZT reaching ≤1\% for the tensor current. Results of the renormalized quark masses and hadron matrix elements show that the renormalization procedure suppresses the ∼30\% difference of the bare quantities with or without HYP smearing into the 3\%-5\% level.",

author = "Yujiang Bi and Ying Chen and Ming Gong and Fangcheng He and Liu, \{Keh Fei\} and Zhaofeng Liu and Yang, \{Yi Bo\} and Zhao, \{Dian Jun\}",

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AU - Bi, Yujiang

AU - Chen, Ying

AU - Gong, Ming

AU - He, Fangcheng

AU - Liu, Keh Fei

AU - Liu, Zhaofeng

AU - Yang, Yi Bo

AU - Zhao, Dian Jun

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2023/9/1

Y1 - 2023/9/1

N2 - On configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct the overlap Dirac operator. We investigate the possible effects of the smearing on discretization errors in the RCs by varying the level of smearing from 0 to 1 and 2. The lattice is of size 323×64 and with lattice spacing 1/a=2.383(9) GeV. The RCs in the MS¯ scheme at 2 GeV are given at the end, with the uncertainty of ZT reaching ≤1% for the tensor current. Results of the renormalized quark masses and hadron matrix elements show that the renormalization procedure suppresses the ∼30% difference of the bare quantities with or without HYP smearing into the 3%-5% level.

AB - On configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct the overlap Dirac operator. We investigate the possible effects of the smearing on discretization errors in the RCs by varying the level of smearing from 0 to 1 and 2. The lattice is of size 323×64 and with lattice spacing 1/a=2.383(9) GeV. The RCs in the MS¯ scheme at 2 GeV are given at the end, with the uncertainty of ZT reaching ≤1% for the tensor current. Results of the renormalized quark masses and hadron matrix elements show that the renormalization procedure suppresses the ∼30% difference of the bare quantities with or without HYP smearing into the 3%-5% level.

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RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearing

Abstract

Bibliographical note

Funding

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