Fundamental properties of the proton in light-front zero modes

DOI10.1016/J.NUCLPHYSB.2020.115181zbMATH Open1472.81312arXiv2003.04478OpenAlexW3011140183MaRDI QIDQ823013

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Publication date: 24 September 2021

Published in: (Search for Journal in Brave)

Abstract: For a proton in the infinite momentum frame, its wave function contains a zero-momentum part (light-front zero-modes) originated from the modification of the QCD vacuum in the presence of the valence quarks, exhibiting a light-front long-range order in the quantum state. This ``non-travelling component of the proton contributes to its fundamental properties, including the mass and spin, as well as the naive-time-reversal-odd correlations between transverse momentum and spin. The large momentum effective theory (LaMET) provides a theoretical approach to study the physical properties of the proton's zero-mode ``condensate through lattice simulations.

Full work available at URL: https://arxiv.org/abs/2003.04478

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