Proton gravitational form factors in a light-front quark-diquark model
We present a recent calculation of the gravitational form factors (GFFs) of proton using the light-front quark-diquark model constructed by the soft-wall AdS/QCD[1]. The four GFFs ~A(Q^2) A ( Q 2 ) , B(Q^2) B ( Q 2 ) , C(Q^2) C ( Q 2 ) and \bar{C}(Q^2) C ‾ ( Q 2 ) are calculated in this model. We al...
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| Published in | SciPost physics proceedings no. 8; p. 113 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
SciPost
13.07.2022
|
| Online Access | Get full text |
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| Summary: | We present a recent calculation of the gravitational form factors
(GFFs) of proton using the light-front quark-diquark model constructed
by the soft-wall AdS/QCD[1]. The four GFFs
~A(Q^2)
A
(
Q
2
)
,
B(Q^2)
B
(
Q
2
)
,
C(Q^2)
C
(
Q
2
)
and
\bar{C}(Q^2)
C
‾
(
Q
2
)
are calculated in this model. We also show the pressure and shear
distributions of quarks inside the proton. The GFFs,
A(Q^2)
A
(
Q
2
)
and
B(Q^2)
B
(
Q
2
)
are found to be consistent with the lattice QCD, while the qualitative
behavior of the
D
D
-term
form factor is in agreement with the extracted data from the deeply
virtual Compton scattering (DVCS) experiments at JLab, the lattice QCD,
and the predictions of different phenomenological models. |
|---|---|
| ISSN: | 2666-4003 2666-4003 |
| DOI: | 10.21468/SciPostPhysProc.8.113 |