Pion gravitational form factors in the QCD instanton vacuum II

Abstract

We revisit the hard QCD contributions to the pion gravitational form factors (GFFs), in terms of the twist-2,3 pion distribution amplitudes (DA), including novel semi-hard contributions from the instantons. The pion DAs are evaluated in the QCD instanton vacuum, and then properly evolved to higher resolution. The results are compared to our recent results from the QCD instanton vacuum, as well as Bethe-Salpeter calculations and recent lattice data. The interpolated hard and soft contributions to the pion D-form-factor, are used to derive the (gravitational) pressure and shear within the pion, with a clear delineation of their range.

14 pages, 6 figures

References in corpus (14)

• Electron-Ion Collider in China
• Pion Generalized Parton Distributions with covariant and Light-front constituent quark models
• Gravitational and higher-order form factors of the pion in chiral quark models
• Measurement of the J/$\psi$ photoproduction cross section over the full near-threshold kinematic region
• Perturbative Calculations of Gravitational Form Factors at Large Momentum Transfer
• An introductory lecture on Generalised Parton Distributions
• Pion gravitational form factors in a relativistic theory of composite particles
• Nonperturbative quark-antiquark interactions in mesonic form factors
• Trace anomaly form factors from lattice QCD
• Stress inside the pion in holographic light-front QCD
• Pion gravitational form factors in the QCD instanton vacuum I
• Hadronic structure on the light-front VIII. Light scalar and vector mesons
• Hadronic structure on the light-front VII. Pions and kaons and their partonic distributions
• Pion and Kaon Distribution Amplitudes up to twist-3 in the QCD Instanton Vacuum

Cited by in corpus (7)

• Gravitational form factors of pion from top-down holographic QCD
• Dominance of gluonic scale anomaly in confining pressure inside nucleon and D-term
• Pion gravitational form factors in the QCD instanton vacuum I
• A Journey of Seeking Pressure and Forces in the Nucleon
• Gravitational form factors of pions, kaons and nucleons from dispersion relations
• Scale-anomaly-induced binding pressure in hadrons
• Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD