Main Features of the SIDDHARTA-2 Apparatus for Kaonic Deuterium X-Ray Measurements

Marlene Tüchler; Florin Sirghi; M. Bazzi; D. Bosnar; M. Bragadireanu; M. Carminati; M. Cargnelli; A. Clozza; C. Curceanu; G. Deda; R. Del Grande; L. De Paolis; C. Fiorini; C. Guaraldo; M. Iliescu; M. Iwasaki; P. King; P. Levi Sandri; J. Marton; M. Miliucci; P. Moskal; F. Napolitano; S. Niedzwiecki; K. Piscicchia; A. Scordo; F. Sgaramella; H. Shi; M. Silarski; D. Sirghi; M. Skurzok; A. Spallone; O. Vazquez Doce; E. Widmann; J. Zmeskal

doi:10.1051/epjconf/202226201016

All issues

Volume 262 (2022)

EPJ Web Conf., 262 (2022) 01016

Abstract

Open Access

Issue		EPJ Web Conf. Volume 262, 2022 International Conference on Exotic Atoms and Related Topics - EXA2021


Article Number		01016
Number of page(s)		7
DOI		https://doi.org/10.1051/epjconf/202226201016
Published online		27 April 2022

EPJ Web of Conferences 262, 01016 (2022)
https://doi.org/10.1051/epjconf/202226201016

Main Features of the SIDDHARTA-2 Apparatus for Kaonic Deuterium X-Ray Measurements

Marlene Tüchler¹^*, Florin Sirghi²^,3^**, M. Bazzi², D. Bosnar⁴, M. Bragadireanu³, M. Carminati⁵, M. Cargnelli¹, A. Clozza², C. Curceanu², G. Deda⁵, R. Del Grande²^,6^,7, L. De Paolis², C. Fiorini⁵, C. Guaraldo², M. Iliescu², M. Iwasaki⁸, P. King⁵, P. Levi Sandri², J. Marton¹, M. Miliucci², P. Moskal⁹, F. Napolitano², S. Niedzwiecki⁹, K. Piscicchia⁷^,2, A. Scordo², F. Sgaramella²^,10, H. Shi¹, M. Silarski⁹, D. Sirghi²^,3, M. Skurzok⁹^,2, A. Spallone², O. Vazquez Doce²^,6, E. Widmann¹ and J. Zmeskal¹

¹ Stefan Meyer Institute for Subatomic Physics, Vienna, Austria
² INFN, Laboratori Nazionali di Frascati, Frascati (Roma), Italy
³ Horia Hulubei National Inst. of Physics and Nuclear Engineering, Bucharest, Romania
⁴ Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
⁵ Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria and INFN Sezione di Milano, Milano, Italy
⁶ Excellence Cluster Universe, Technische Universiät München, Garching, Germany
⁷ Centro Ricerche Enrico Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Roma, Italy
⁸ RIKEN, Tokyo, Japan
⁹ M. Smoluchowski Institute of Physics, Jagiellonian University, Kraków, Poland
¹⁰ Università degli Studi di Roma, Tor Vergata, Rome, Italy

^* e-mail: marlene.tuechler@oeaw.ac.at
^** e-mail: Sirghi.FlorinCatalin@lnf.infn.it

Published online: 27 April 2022

Abstract

The low-energy, non-perturbative regime of QCD can be studied directly by X-ray spectroscopy of light kaonic atoms. The SIDDHARTA-2 experiment, located at the DAΦNE collider, aims to measure the 2p → 1s transition in kaonic deuterium for the first time to extract the antikaon-nucleon scattering lengths. This measurement is impeded, inter alia, by the low K⁻d X-ray yield. Hence, several updates have been implemented on the apparatus to increase the signal-to-background ratio, which are discussed in detail in this paper: a lightweight gas target cell, novel Silicon Drift Detectors for the X-ray detection with excellent performance, and a veto system for active background suppression. The experiment has undergone a first preparatory run during DAΦNE’s commissioning phase in 2021, concluding with a successful kaonic helium measurement.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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