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Pion and Kaon Distribution Amplitudes from Lattice QCD.
Hua, Jun; Chu, Min-Huan; He, Fang-Cheng; He, Jin-Chen; Ji, Xiangdong; Schäfer, Andreas; Su, Yushan; Sun, Peng; Wang, Wei; Xu, Ji; Yang, Yi-Bo; Yao, Fei; Zhang, Jian-Hui; Zhang, Qi-An.
Afiliação
  • Hua J; Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China.
  • Chu MH; Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Southern Nuclear Science Computing Center, South China Normal University, Guangzhou 510006, China.
  • He FC; INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, Key Laboratory for Particle Astrophysics and Cosmology (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
  • He JC; INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, Key Laboratory for Particle Astrophysics and Cosmology (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Ji X; Yang Yuanqing Scientic Computering Center, Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Schäfer A; CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China.
  • Su Y; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Sun P; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Wang W; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Xu J; Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany.
  • Yang YB; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Yao F; Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
  • Zhang JH; INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, Key Laboratory for Particle Astrophysics and Cosmology (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Zhang QA; INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, Key Laboratory for Particle Astrophysics and Cosmology (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
Phys Rev Lett ; 129(13): 132001, 2022 Sep 23.
Article em En | MEDLINE | ID: mdl-36206420
ABSTRACT
We present a state-of-the-art lattice QCD calculation of the pion and kaon light-cone distribution amplitudes (DAs) using large-momentum effective theory. The calculation is done at three lattice spacings a≈{0.06,0.09,0.12} fm and physical pion and kaon masses, with the meson momenta P_{z}={1.29,1.72,2.15} GeV. The result is nonperturbatively renormalized in a recently proposed hybrid scheme with self-renormalization, and extrapolated reliably to the continuum as well as the infinite momentum limit. We find a significant deviation of the pion and kaon DAs from the asymptotic form, and a large SU(3) flavor breaking effect in the kaon DA.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article