| Title: |
$\gamma^* N \rightarrow \Delta^{+}(1600)$ transition form factors in light-cone sum rules |
| Authors: |
Aliev, T. M.; Barakat, T.; Bilmis, S.; Savci, M. |
| Source: |
Phys. Rev. D 101, 114011 (2020) |
| Publication Year: |
2020 |
| Collection: |
High Energy Physics - Phenomenology |
| Subject Terms: |
High Energy Physics - Phenomenology |
| Description: |
The form factors of $\gamma^* N \rightarrow \Delta(1600)$ transition is calculated within the light-cone sum rules assuming that $\Delta^+(1600)$ is the first radial excitation of $\Delta(1232)$. The $Q^2$ dependence of the magnetic dipole $\tilde{G}_M(Q^2)$, electric quadrupole $\tilde{G}_E(Q^2)$, and Coulomb quadrupole $\tilde{G}_c(Q^2)$ form factors are investigated. Moreover, the $Q^2$ dependence of the ratios $R_{EM} = -\frac{\tilde{G}_E(Q^2)}{\tilde{G}_M{Q^2}}$ and $R_{SM} = - \frac{1}{4 m_{\Delta(1600)}^2} \sqrt{4 m_{\Delta(1600)}^2 Q^2 + (m_{\Delta(1600)}^2 - Q^2 - m_N^2)^2} \frac{\tilde{G}_c(Q^2)}{\tilde{G}_M(Q^2)}$ are studied. Finally, our predictions on $\tilde{G}_M(Q^2)$, $\tilde{G}_E(Q^2)$, and $\tilde{G}_C(Q^2)$ are compared with the results of other theoretical approaches.; Comment: 19 pages, 5 figures |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevD.101.114011 |
| Access URL: |
http://arxiv.org/abs/2003.11348 |
| Accession Number: |
edsarx.2003.11348 |
| Database: |
arXiv |