Quark transverse spin-momentum correlation of the pion from lattice QCD: The Boer-Mulders function
Year: 2025
Type: article
Abstract: We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the T-odd Boer-Mulders function of the pion, using large-momentum effective theory. The calculation is done at three lattice spacings a = { 0.098 , 0.085 , 0.064 } fm and pion masses ∼ 350 MeV , with pion momenta up to 1.8 GeV. The matrix elements are renormalized in a state-of-the-art scheme and extrapolated to the continuum and infinite momentum limit. We have implemented the perturbative matching up to the next-to-next-to-leading order and carried out a renormalization-group resummation. Our results provide valuable input for phenomenological analyses of the Boer-Mulders single-spin asymmetry.
Institutions: University of Regensburg, South China Normal University, Chinese University of Hong Kong, Beijing Normal University, Central China Normal University, University of Maryland, College Park, Institute of Modern Physics, Shanghai Jiao Tong University, Central South University, International Centre for Theoretical Physics Asia-Pacific, University of Chinese Academy of Sciences, Beihang University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: Chinese University of Hong Kong, Shenzhen, Deutsche Forschungsgemeinschaft, National Natural Science Foundation of China, Chinese Academy of Sciences, Chinese University of Hong Kong, Gauss Centre for Supercomputing, Leibniz-Gemeinschaft, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities, Leibniz-Rechenzentrum, Basic and Applied Basic Research Foundation of Guangdong Province
Awards: G1094733649, G114783959, G1988824864, G2279064292, G2386172424, G2543024069, G2550026590, G3072967281, G3081063465, G328816031, G3669924325, G4519729187, G4805327024, G4808970667, G4944917857, G5666065100, G5687198492, G5851153177, G6403042655, G6410301491, G6702060814, G6757790843, G6775000546, G7504224031, G7889680724, G7916857574, G8181039722, G8345268726
OpenAlex ID: W4410158661