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Huo, Yi-Kai ; Su, Yushan ; Gui, Long-Cheng ; Ji, Xiangdong ; Li, Yuan-Yuan ; Liu, Yizhuang ; Schäfer, Andreas ; Schlemmer, Maximilian ; Sun, Peng ; Wang, Wei ; Yang, Yi-Bo ; Zhang, Jian-Hui ; Zhang, Kuan

Self-renormalization of quasi-light-front correlators on the lattice

Huo, Yi-Kai, Su, Yushan, Gui, Long-Cheng, Ji, Xiangdong, Li, Yuan-Yuan, Liu, Yizhuang, Schäfer, Andreas , Schlemmer, Maximilian, Sun, Peng, Wang, Wei, Yang, Yi-Bo, Zhang, Jian-Hui und Zhang, Kuan (2021) Self-renormalization of quasi-light-front correlators on the lattice. Nuclear Physics B 969 (115443), S. 1-42.

Veröffentlichungsdatum dieses Volltextes: 20 Feb 2022 14:43
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.51743


Zusammenfassung

In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines. Based on lattice QCD matrix elements of the quasi-PDF operator at lattice spacing a = 0.03 fm similar to 0.12 fm with clover and overlap valence quarks on staggered and domain-wall sea, we design a strategy ...

In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines. Based on lattice QCD matrix elements of the quasi-PDF operator at lattice spacing a = 0.03 fm similar to 0.12 fm with clover and overlap valence quarks on staggered and domain-wall sea, we design a strategy to disentangle the divergent renormalization factors from finite physics matrix elements, which can be matched to a continuum scheme at short distance such as dimensional regularization and minimal subtraction. Our results indicate that the renormalization factors are universal in the hadron state matrix elements. Moreover, the physical matrix elements appear independent of the valence fermion formulations. These conclusions remain valid even with HYP smearing which reduces the statistical errors albeit reducing control of the renormalization procedure. Moreover, we find a large non-perturbative effect in the popular RI/MOM and ratio renormalization scheme, suggesting favor of the hybrid renormalization procedure proposed recently. (C) 2021 The:Author. Published by Elsevier B.V.



Beteiligte Einrichtungen


Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftNuclear Physics B
Verlag:Elsevier
Ort der Veröffentlichung:AMSTERDAM
Band:969
Nummer des Zeitschriftenheftes oder des Kapitels:115443
Seitenbereich:S. 1-42
Datum25 Mai 2021
InstitutionenPhysik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer
Identifikationsnummer
WertTyp
10.1016/j.nuclphysb.2021.115443DOI
Stichwörter / KeywordsNONPERTURBATIVE RENORMALIZATION; HEAVY
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-517431
Dokumenten-ID51743

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