J/ψ near threshold in holographic QCD: A and D gravitational form factors

被引：30
|
作者：
Mamo, Kiminad A. [1 ]
Zahed, Ismail [2 ]
机构：
[1] Argonne Natl Lab, Phys Div, Argonne, IL 60439 USA
[2] SUNY Stony Brook, Ctr Nucl Theory, Dept Phys & Astron, Stony Brook, NY 11794 USA
来源：
PHYSICAL REVIEW D | 2022年 / 106卷 / 08期
关键词：
PROTON; SIZE;
D O I：
10.1103/PhysRevD.106.086004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The diffractive photoproduction of J/'P on a nucleon is mostly due to gluonic exchanges at all ffis ffi p . In holographic QCD (large number of colors and strong 0t Hooft coupling), these exchanges are captured by gravitons near threshold, and their reggeized form (Pomeron) asymptotically. We revisit our holographic analysis of the A and D gravitational form factors in light of the new lattice data, and use them to refine our predictions for the photoproduction of J/'P near threshold, and the comparison to the GlueX data. We use these results to estimate the scalar and mass radii of the nucleon, and describe the gravitational pressure and shear across a nucleon.
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页数：13
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