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Uncertainty in mean $X_{\rm max}$ from diffractive dissociation estimated using measurements of accelerator experiments
by Ken Ohashi, Hiroaki Menjo, Takashi Sako, Yoshitaka Itow
Submission summary
| Authors (as registered SciPost users): | Ken Ohashi |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2208.04645v3 (pdf) |
| Date accepted: | Oct. 10, 2022 |
| Date submitted: | Oct. 6, 2022, 11:35 a.m. |
| Submitted by: | Ken Ohashi |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 21st International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI2022) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
Mass composition is important for understanding the origin of ultra-high-energy cosmic rays. However, interpretation of mass composition from air shower experiments is challenging, owing to significant uncertainty in hadronic interaction models adopted in air shower simulation. A particular source of uncertainty is diffractive dissociation, as its measurements in accelerator experiments demonstrated significant systematic uncertainty. In this research, we estimate the uncertainty in $\langle X_{\rm max}\rangle$ from the uncertainty of the measurement of diffractive dissociation by the ALICE experiment. The maximum uncertainty size of the entire air shower was estimated to be $^{+4.0}_{-5.6} \mathrm{g/cm^2}$ for air showers induced by $10^{17}$ eV proton, which is not negligible in the uncertainty of $\langle X_{\rm max}\rangle$ predictions.
Author comments upon resubmission
We applied suggested modifications.
List of changes
Published as SciPost Phys. Proc. 13, 018 (2023)