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Introduction to the PanScales framework, version 0.1
by Melissa van Beekveld, Mrinal Dasgupta, Basem Kamal El-Menoufi, Silvia Ferrario Ravasio, Keith Hamilton, Jack Helliwell, Alexander Karlberg, Rok Medves, Pier Francesco Monni, Gavin P. Salam, Ludovic Scyboz, Alba Soto-Ontoso, Gregory Soyez, Rob Verheyen
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Submission summary
| Authors (as registered SciPost users): | Alexander Karlberg · Gavin Salam · Ludovic Scyboz · Gregory Soyez · Rob Verheyen · Melissa van Beekveld |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202404_00030v1 (pdf) |
| Code repository: | https://gitlab.com/panscales/panscales-0.X |
| Date accepted: | 2024-05-20 |
| Date submitted: | 2024-04-21 17:34 |
| Submitted by: | van Beekveld, Melissa |
| Submitted to: | SciPost Physics Codebases |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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Abstract
In this article, we document version 0.1 of the PanScales code for parton shower simulations. With the help of a few examples, we discuss basic usage of the code, including tests of logarithmic accuracy of parton showers. We expose some of the numerical techniques underlying the logarithmic tests and include a description of how users can implement their own showers within the framework. Some of the simpler logarithmic tests can be performed in a few minutes on a modern laptop. As an early step towards phenomenology, we also outline some aspects of a preliminary interface to Pythia, for access to its hard matrix elements and its hadronisation modules.
Author comments upon resubmission
List of changes
- section 1:
* added references to a selection of papers on hadronisation and tuning
- section 2.1:
* addition of outline of directory structure
- section 2.2:
* added reference to new Appendix A, mentioning in particular access to step-by-step event record
- section 2.4:
* added indication that one needs to install the CT14lo set
* added a paragraph at the end of the section, with a discussion of the interplay between hadronisation and logarithmic accuracy
- section 2.5:
* added mention of the use of Catch2 library for unit tests
- section 3.1:
* added discussion of the choice of $\alpha_s$ values for the global event-shape logarithmic accuracy tests
- section 3.1.1:
* (penultimate paragraph) added discussion of the approximate observable that is used as a helper within log-accuracy tests
- section 3.1.3:
* substantial rewrite of this section (on weighted event generation
for $\beta_{ps}\neq \beta_{obs}$), to help make it clearer
- section 3.2:
* updated footnote 9 discussing leading-$N_C$ colour choices in the tests
of non-global logarithms
- Appendix A:
* added new appendix with event record description
Published as SciPost Phys. Codebases 31-r0.1 (2024) , SciPost Phys. Codebases 31 (2024)
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I thanks the authors for their clear response and additional comments in the manuscript in order to clarify all points that have been raised satisfactorily.
I recommend the manuscript for publication in SciPost without any further changes.
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I thank the authors for addressing the referee remarks of the previous submission. I am happy to recommend this paper for publication in this journal.
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