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Ma, Lingquan ; Hua, Jun ; Schäfer, Andreas ; Shu, Hai-Tao ; Su, Yushan ; Sun, Peng ; Walter, Lisa ; Wang, Wei ; Xiong, Xiaonu ; Yang, Yi-Bo ; Zhang, Jian-Hui ; Zhang, Qi-An

Quark transverse spin-momentum correlation of the nucleon from lattice QCD: the Boer-Mulders function

Ma, Lingquan, Hua, Jun, Schäfer, Andreas , Shu, Hai-Tao, Su, Yushan, Sun, Peng, Walter, Lisa , Wang, Wei, Xiong, Xiaonu, Yang, Yi-Bo, Zhang, Jian-Hui and Zhang, Qi-An (2025) Quark transverse spin-momentum correlation of the nucleon from lattice QCD: the Boer-Mulders function. Journal of High Energy Physics 2025 (8).

Date of publication of this fulltext: 15 Apr 2026 11:13
Article
DOI to cite this document: 10.5283/epub.79039


Abstract

We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the naive time-reversal-odd Boer-Mulders function, of the nucleon, using large-momentum effective theory (LaMET). The calculation is carried out on an ensemble with lattice spacing a = 0.098 fm and pion mass 338 MeV, at various proton momenta up to 2.11 GeV. We have implemented perturbative ...

We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the naive time-reversal-odd Boer-Mulders function, of the nucleon, using large-momentum effective theory (LaMET). The calculation is carried out on an ensemble with lattice spacing a = 0.098 fm and pion mass 338 MeV, at various proton momenta up to 2.11 GeV. We have implemented perturbative matching up to the next-to-next-to-leading order together with a renormalization-group resummation improvement. The result exhibits the expected decay behavior with increasing transverse separation b⊥. We also compare the results in the nucleon and pion.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitleJournal of High Energy Physics
Publisher:Springer Nature
Volume:2025
Number of Issue or Book Chapter:8
Date12 August 2025
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Projects
Funded by: Deutsche Forschungsgemeinschaft (DFG) (448374536)
Identification Number
ValueType
10.1007/JHEP08(2025)086DOI
KeywordsHadronic Spectroscopy, Structure and Interactions, Lattice QCD
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgPartially
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-790394
Item ID79039

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