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Using coherent dipion photoproduction to image gold nuclei
by Spencer R. Klein
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Submission summary
| Authors (as registered SciPost users): | Spencer Klein |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2107.10447v1 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2021-07-23 02:48 |
| Submitted by: | Klein, Spencer |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Experimental, Phenomenological |
Abstract
Vector meson photoproduction offers the opportunity to image target nuclei. The two-dimensional Fourier transform $d\sigma_{\rm coherent}/dt$ of coherent vector meson photoproduction gives the two-dimensional distribution of interaction sites in the target. Since vector meson photoproduction occurs, at lowest order, via two-gluon exchange, this is sensitive to gluon shadowing. We present an analysis of $\pi^+\pi^-$ photoproduction using data from the STAR detector and a study of $d\sigma_{\rm coherent}/dt$, with an emphasis on probing the nuclear shape and its systematic uncertainties.
Published as SciPost Phys. Proc. 8, 128 (2022)