RECORD
Sea quark contributions to the electromagnetic form factors of $\Sigma$ hyperons
High Energy Physics - Phenomenology · Submitted 25 Oct 2021
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim $G_{\Sigma^{-}}^{u}$ and $G_{\Sigma^{+}}^{d}$ could be priority observables for the examination of sea quark contributions to baryon structure because these quantities are much larger than the strange form factors of nucleon.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
We study the sea quark contributions to the electromagnetic form factors of $\Sigma$ baryons with nonlocal chiral effective theory. Both octet and decuplet intermediate states are included in the one loop calculation. $G_{\Sigma^{-}}^{u}$ and $G_{\Sigma^{+}}^{d}$ could be priority observables for the examination of sea quark contributions to baryon structure because these quantities are much larger than the strange form factors of nucleon. It will be less difficult for lattice simulation to determine the sign of these pure sea quark contributions unambiguously. In $\Sigma^0$, the light sea quark form factors $G_{\Sigma^{0}}^{u}$ and $G_{\Sigma^{0}}^{d}$ are identical. Since the light sea quark form factors in proton are different, it will be more meaningful to compare lattice result of the light sea quark form factors in $\Sigma^0$ with that obtained from effective field theory.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We study the sea quark contributions to the electromagnetic form factors of $\Sigma$ baryons with nonlocal chiral effective theory. | contribution 1.00 | 0.92 | 0.06 | asserted 0.87 |
| s1 | Both octet and decuplet intermediate states are included in the one loop calculation. | method 0.99 | 0.84 | 0.04 | asserted 1.00 |
| s2 | $G_{\Sigma^{-}}^{u}$ and $G_{\Sigma^{+}}^{d}$ could be priority observables for the examination of sea quark contributions to baryon structure because these quantities are much larger than the strange form factors of nucleon. | interpretation 0.61 | 0.53 | 0.40 | hedged possibility 1.00 |
| s3 | It will be less difficult for lattice simulation to determine the sign of these pure sea quark contributions unambiguously. | interpretation 0.74 | 0.13 | 0.10 | hedged possibility 0.68 |
| s4 | In $\Sigma^0$, the light sea quark form factors $G_{\Sigma^{0}}^{u}$ and $G_{\Sigma^{0}}^{d}$ are identical. | result 1.00 | 0.76 | 0.10 | asserted 1.00 |
| s5 | Since the light sea quark form factors in proton are different, it will be more meaningful to compare lattice result of the light sea quark form factors in $\Sigma^0$ with that obtained from effective field theory. | interpretation 0.70 | 0.17 | 0.11 | asserted 0.76 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We study the sea quark contributions to the electromagnetic form factors of $\Sigma$ baryons with nonlocal chiral effective theory. Both octet and decuplet intermediate states are included in the one loop calculation. $G_{\Sigma^{-}}^{u}$ and $G_{\Sigma^{+}}^{d}$ could be priority observables for the examination of sea quark contributions to baryon structure because these quantities are much larger than the strange form factors of nucleon. It will be less difficult for lattice simulation to determine the sign of these pure sea quark contributions unambiguously. In $\Sigma^0$, the light sea quark form factors $G_{\Sigma^{0}}^{u}$ and $G_{\Sigma^{0}}^{d}$ are identical. Since the light sea quark form factors in proton are different, it will be more meaningful to compare lattice result of the light sea quark form factors in $\Sigma^0$ with that obtained from effective field theory.
Human review
How the literature uses it
1 arXiv paper cite this in 1 sentence
Papers citing it
Cites it as background 1 paper
-
The role of sea quark contributions to the EMFFs of $Σ$ hyperons is addressed within nonlocal chiral effective theory [ref] .
Data driven isospin analysis of timelike octet baryons electromagnetic form factors and charmonium decay into baryon-anti-baryon · About hyperons · 0.86
What it cites · 7 sentences without a confident label
Builds on 1 paper
-
This nonlocal EFT was further applied to study the parton distribution functions [ref] .
Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries · introduction · 0.88
Uses the method or tool of 1 paper
-
The covariant regulator is chosen to be a dipole form [ref] [equation] where $m_j$ is the meson mass for the baryon-meson interaction and it is zero for the hadron-photon interaction.
Electromagnetic form factors of octet baryons with the nonlocal chiral effective theory · numerical results · 0.93
Uses data or values from 1 paper
-
In the numerical calculations, the parameters are chosen to be $D=0.76$ and $F=0.50$ ($g_A=D+F=1.26$) [ref] .
Chiral expansion of baryon masses and $\sigma$-terms · numerical results · 0.99
Compares with 1 paper
-
For the sea quark form factors of proton, the light sea quark contributions obtained in nonlocal EFT are quite different from the lattice results, though the strange quark contributions are comparable with each other [ref] .
Sea quark contributions to nucleon electromagnetic form factors with the nonlocal chiral effective Lagrangian · introduction · 0.95
Cites as background 21 papers
-
The strange form factors of the proton $G_E^s$ and $G_M^s$ have been obtained by a number of groups, such as SAMPLE at Bates [ref] , A4 at Mainz [ref] , G0 [ref] and HAPPEX [ref] at Jefferson Lab, etc.
Strange Quark Contributions to Parity-Violating Asymmetries in the Backward Angle G0 Electron Scattering Experiment · introduction · 0.83
-
The strange form factors of the proton $G_E^s$ and $G_M^s$ have been obtained by a number of groups, such as SAMPLE at Bates [ref] , A4 at Mainz [ref] , G0 [ref] and HAPPEX [ref] at Jefferson Lab, etc.
New Precision Limit on the Strange Vector Form Factors of the Proton · introduction · 0.83
-
The strange form factors of the proton $G_E^s$ and $G_M^s$ have been obtained by a number of groups, such as SAMPLE at Bates [ref] , A4 at Mainz [ref] , G0 [ref] and HAPPEX [ref] at Jefferson Lab, etc.
The Strange Quark Contribution to the Proton's Magnetic Moment · introduction · 0.83
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.