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Measuring the light meson nuclear modification factor in p-Pb collisions over an unprecedented $p_{\text{T}}$ range with ALICE
by Joshua König
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Joshua König |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2108.05299v1 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2021-08-12 17:46 |
| Submitted by: | König, Joshua |
| 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 |
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Abstract
Differential invariant cross sections of light neutral mesons in p-Pb collisions at $\sqrt{s_{\text{NN}}}$ = 8.16 TeV and in pp collisions at $\sqrt{s}$ = 8 TeV have been measured up to very high transverse momentum ($p_{\text{T}}$). By combining independent reconstruction techniques available in ALICE using the EMCal and PHOS calorimeters as well as the central barrel tracking detectors, the combined spectra cover almost two orders of magnitude in $p_{\rm T}$ for the $\pi^{0}$ meson. The nuclear modification factor $R_{\text{pPb}}$ has been measured for the $\pi^{0}$ and $\eta$ mesons and is found to be consistent with NLO pQCD, CGC and energy loss calculations. Comparisons to the $R_{\text{pPb}}$ of $\pi^{0}$ measured in $\sqrt{s_{\text{NN}}}$ = 5.02 TeV hint at a stronger suppression at low $p_{\rm T}$ with increasing collision energy.
Published as SciPost Phys. Proc. 8, 048 (2022)
Reports on this Submission
Anonymous Report 1 on 2022-2-27 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2108.05299v1, delivered 2022-02-27, doi: 10.21468/SciPost.Report.4542
Report
Measurement of R_pPb has been reported for the π0 and η mesons at ALICE using PHOS, EMCal , and as well as the central barrel tracking detectors. The combined spectra cover almost two orders of magnitude. The measurement is consistent with be consistent with NLO pQCD, CGC and energy loss calculations.
This an important data measurement. It is a clear and well written paper. I would recommend it for publication.