The RadioMonteCarlow 2 Effort

• Riccardo Aliberti ¹
• Paolo Beltrame ²
• Ettore Budassi ^{3, 4}
• Carlo M. Carloni Calame ⁴
• Gilberto Colangelo ⁵
• Lorenzo Cotrozzi ²
• Achim Denig ¹
• Anna Driutti ^{6, 7}
• Tim Engel ⁸
• Lois Flower ^{2, 9}
• Andrea Gurgone ^{3, 4, 6}
• Martin Hoferichter ⁵
• Fedor Ignatov ²
• Sophie Kollatzsch ^{10, 11}
• Bastian Kubis ¹²
• Andrzej Kupść ^{13, 14}
• Fabian Lange ^{11, 10}
• Alberto Lusiani ^{15, 7}
• Stefan E. Müller ¹⁶
• Jérémy Paltrinieri ²
• Pau Petit Rosàs ²
• Fulvio Piccinini ⁴
• Alan Price ¹⁷
• Lorenzo Punzi ^{7, 15}
• Marco Rocco ^{10, 18, 19}
• Olga Shekhovtsova ^{20, 21}
• Andrzej Siódmok ¹⁷
• Adrian Signer ^{10, 11}
• Giovanni Stagnitto ²²
• Peter Stoffer ^{10, 11}
• Thomas Teubner ²
• William J. Torres Bobadilla ²
• Francesco P. Ucci ^{3, 4}
• Yannick Ulrich ^{2, 5}
• Graziano Venanzoni ^{2, 7}

1. Institute for Nuclear Physics, Johannes Gutenberg University Mainz, Germany
2. University of Liverpool, Liverpool L69 3BX, U.K.
3. Dipartimento di Fisica, Università di Pavia, Via A. Bassi 6, 27100, Pavia, Italy
4. INFN, Sezione di Pavia, Via A. Bassi 6, 27100, Pavia, Italy
5. Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
6. Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, 56127, Pisa, Italy
7. INFN, Sezione di Pisa, Largo B. Pontecorvo 3, 56127, Pisa, Italy
8. Albert-Ludwigs-Universität Freiburg, Physikalisches Institut, D-79104 Freiburg, Germany
9. Institute for Particle Physics Phenomenology, Durham University, South Road, Durham, DH1 3LE, U.K.
10. PSI Center for Neutron and Muon Sciences, 5232 Villigen PSI, Switzerland
11. Physik-Institut, Universität Zürich, 8057 Zürich, Switzerland
12. Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany
13. Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
14. National Centre for Nuclear Research, Pasteura 7, 02-093 Warsaw, Poland
15. Scuola Normale Superiore, Pisa, Italy
16. HZDR Dresden, Germany
17. Jagiellonian University, ul. prof. Stanislawa Łojasiewicza 11, 30-348 Kraków, Poland
18. Università degli Studi di Torino
19. INFN, Via Pietro Giuria 1, Torino 10125, Italy
20. NSC KIPT Institute for Theoretical Physics, Kharkov, Ukraine
21. INFN Sezione di Perugia, 06123, Perugia, Italy
22. Università degli Studi di Milano-Bicocca & INFN, Piazza della Scienza 3, Milano 20126, Italy

Monte Carlo codes are essential tools for the analysis of low-energy scattering experiments at electron-positron colliders. Accordingly, there is an extensive and long-standing effort by the community to provide and improve codes that are able to produce fully differential predictions for processes related to e⁺e^- → hadrons at centre of mass energy of a few GeV. Through the community effort RadioMonteCarlow2 we collect such tools and facilitate the access to them. We update the report of the Working Group on Radiative Corrections and Monte Carlo Generators for Low Energy and highlight the developments of the past ten years.

This website currently contains the results of Phase I of this ongoing effort and will be updated regularly. Phase I was published as arXiv:2410.22882 and is mostly a theoretical exercise with the goal of analysis the importance of various contributions. This means that we only consider a subset of processes and do not compare at all to experimental data.

• Introduction
• Experiments at electron–positron colliders (WIP)
• Computational setup
• Generators and integrators and a list of codes and their responsible authors
• Monte Carlo Plots, also archived on Zenodo
• Monte Carlo Results & Comparison (WIP)

If you are interested in joining the RadioMonteCarlow2 effort in Phase II or have questions or feedback, please contact the coordinators Andrzej Kupsc, Adrian Signer, Yannick Ulrich, and Graziano Venanzoni