Accessing the gluon GTMD $\boldsymbol{F_{1,4}}$ in exclusive $\boldsymbol{π^0}$ production in $\boldsymbol{ep}$ collisions
Fuente:
arXiv
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2023
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866913354958766080 |
|---|---|
| author | Bhattacharya, Shohini Zheng, Duxin Zhou, Jian |
| author_facet | Bhattacharya, Shohini Zheng, Duxin Zhou, Jian |
| contents | We demonstrate that the longitudinal single target-spin asymmetry in exclusive $π^0$ production in $ep$ collisions can give access to the imaginary part of the gluon generalized transverse momentum distribution (GTMD) $F_{1,4}$. Such a longitudinal spin asymmetry that results from the Coulomb-nuclear interference effect, leads to a characteristic azimuthal angular correlation of $\sin 2ϕ$, where $ϕ$ is the azimuthal angle between the scattered lepton transverse momentum and the recoiled proton's transverse momentum. We also present a numerical estimate of the asymmetry for the kinematics accessible at EIC and EicC. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_05784 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Accessing the gluon GTMD $\boldsymbol{F_{1,4}}$ in exclusive $\boldsymbol{π^0}$ production in $\boldsymbol{ep}$ collisions Bhattacharya, Shohini Zheng, Duxin Zhou, Jian High Energy Physics - Phenomenology We demonstrate that the longitudinal single target-spin asymmetry in exclusive $π^0$ production in $ep$ collisions can give access to the imaginary part of the gluon generalized transverse momentum distribution (GTMD) $F_{1,4}$. Such a longitudinal spin asymmetry that results from the Coulomb-nuclear interference effect, leads to a characteristic azimuthal angular correlation of $\sin 2ϕ$, where $ϕ$ is the azimuthal angle between the scattered lepton transverse momentum and the recoiled proton's transverse momentum. We also present a numerical estimate of the asymmetry for the kinematics accessible at EIC and EicC. |
| title | Accessing the gluon GTMD $\boldsymbol{F_{1,4}}$ in exclusive $\boldsymbol{π^0}$ production in $\boldsymbol{ep}$ collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2304.05784 |