| Issue |
EPJ Web Conf.
Volume 314, 2024
QCD@Work 2024 - International Workshop on Quantum Chromodynamics - Theory and Experiment
|
|
|---|---|---|
| Article Number | 00016 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/epjconf/202431400016 | |
| Published online | 10 December 2024 | |
https://doi.org/10.1051/epjconf/202431400016
Effects of atomic electron momentum distribution on resonant dark sector production*
1 Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Frascati, 00044, Italy
2 Université Claude Bernard Lyon 1, CNRS/IN2P3, Institut de Physique des 2 Infinis de Lyon, UMR 5822, F-69622, Villeurbanne, France
3 Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso, Assergi, 67100, L’Aquila (AQ), Italy
4 Laboratory of High Energy and Computational Physic, HEPC-NICPB, Rävala 10, 10143, Tallin, Estonia
* Presented by G. Grilli di Cortona at the QCD@Work: International Workshop on QCD, 18-21 June 2024, Trani, Italy
** e-mail: giovanni.grilli@lngs.infn.it
Published online: 10 December 2024
Exploring resonant positron annihilation on atomic electrons offers a promising method for detecting light dark sector particles that interact with e+e− pairs. However, to accurately estimate production rates, a thorough understanding of atomic electron momentum distributions is essential. We introduce a comprehensive approach using the Compton profile of target materials to accurately incorporate electron velocity effects into resonant annihilation cross-sections. We show that taking into account the finite motion of atomic electrons not only can improve the search for new physics, but can also allow to enhance the accuracy of hadronic cross-section measurements.
© The Authors, published by EDP Sciences, 2024
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