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The importance of multiple scatterings in medium-induced gluon radiation
by Carlota Andres, Fabio Dominguez, Marcos Gonzalez Martinez
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Submission summary
| Authors (as registered SciPost users): | Marcos Gonzalez Martinez |
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| Preprint Link: | https://arxiv.org/abs/2110.14384v2 (pdf) |
| Date submitted: | 2021-11-11 08:31 |
| Submitted by: | Gonzalez Martinez, Marcos |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 50th International Symposium on Multiparticle Dynamics (ISMD2021) |
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| Academic field: | Physics |
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Abstract
In this work we disentangle the underlying physical picture of the in-medium gluon radiation process across its different energy regimes by comparing the recently obtained fully-resummed -- without any further approximations -- BDMPS-Z in-medium emission spectrum with the extensively used analytical approaches. We observe that in the high-energy regime the radiation process is dominated by a single hard scattering, while in the intermediate-energy region coherence effects among multiple scatterings are crucial. Finally, we prove that in the low-energy regime the dynamics is again controlled by a single scattering but where one must include a suppression factor accounting for the probability of not having any further scatterings.
Current status:
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-1-28 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2110.14384v2, delivered 2022-01-28, doi: 10.21468/SciPost.Report.4259
Report
In this contribution to the ISMD2021 proceedings the authors compare their recent resummed result for the medium induced gluon bremsstrahlung spectrum to widely used analytical approximations. The manuscript is clearly written and meets the requirements.
I only have two small suggestions for the benefit of non-expert readers that the authors may want to consider provided it is possible within the page limit.
1) explain in a few words what is meant by opacity expansion
2) after eq. (1) briefly say what p and q are and include the definition of Sigma