SciPost Submission Page
Monte Carlo Event Generator updates, for tau pair events at Belle II energies
by Sw. Banerjee, D. Biswas, T. Przedzinski, Z. Was
Submission summary
| Authors (as registered SciPost users): | Zbigniew Andrzej Was |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2111.05914v2 (pdf) |
| Date submitted: | 2024-12-03 09:42 |
| Submitted by: | Was, Zbigniew Andrzej |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 16th International Workshop on Tau Lepton Physics (TAU2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Computational, Phenomenological |
Abstract
The Monte Carlo for lepton pair production and tau decays consist of KKMC for lepton pair production, tauola for tau lepton decays and photos for radiative corrections in decays. An effort for adaptation of the system for precision data to be collected at Belle II experiment lead to extension of phase space generation modules both in photos and tauola to enable decays and/or radiative corrections of additional light lepton pairs. The phase-space and matrix element parts of the programs are separated, that is why extension to processes where lepton pair is produced through narrow resonances, like dark photon, was straight forward. In the present version of tauola, list of tau decay channels is enriched with multitude of exotic ones, useful for searches of new physics. The hadronic currents parametrizations of main decay channels is prepared for basic simulation in the experiment. The basis for future work on precise fits of hadronic currents including Machine Learning is retained, but development of necessary software solutions is left for the forthcoming years. Presented programs versions are available in stand-alone format from gitlab or through the basf2 system of Belle II software. Official distribution web pages, documenting programs tests, are retained but not necessarily up to the date.
Current status:
Reports on this Submission
Report
This proceedings contribution summarizes briefly the main recent developments of the Monte Carlo generators KKMC, TAUOLA and PHOTOS, which deal with lepton pair production, tau lepton decays and radiative corrections in decays, respectively. These event generators are most useful for a wide community and, as such, their updates are of great interest to a numerous public, making this communication very useful. Taking this into account, I recommend publication in its current form.
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Publish (surpasses expectations and criteria for this Journal; among top 10%)