Gravitational Form Factors of the Proton from Lattice QCD
Oct 12, 2023
Published in:
- Phys.Rev.Lett. 132 (2024) 25, 251904
- Published: Jun 21, 2024
e-Print:
- 2310.08484 [hep-lat]
DOI:
- 10.1103/PhysRevLett.132.251904 (publication)
Report number:
- MIT-CTP/5630,
- FERMILAB-PUB-23-592-T
Citations per year
Abstract: (APS)
The gravitational form factors (GFFs) of a hadron encode fundamental aspects of its structure, including its shape and size as defined from, e.g., its energy density. This Letter presents a determination of the flavor decomposition of the GFFs of the proton from lattice QCD, in the kinematic region . The decomposition into up-, down-, strange-quark, and gluon contributions provides first-principles constraints on the role of each constituent in generating key proton structure observables, such as its mechanical radius, mass radius, and term.Note:
- Version published in PRL
- form factor: gravitation
- p: form factor
- hadron: form factor
- energy: density
- lattice field theory
- structure
- GeV
- gluon
- kinematics
- flavor
References(113)
Figures(16)
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