EPJ Web of Conferences (Jan 2022)

Kaonic atoms measurements at the DAΦNE collider: the SIDDHARTA-2 experiment

  • Curceanu Catalina,
  • Miliucci Marco,
  • Bazzi Massimiliano,
  • Bosnar Damir,
  • Bragadireanu Mario,
  • Carminati Marco,
  • Cargnelli Michael,
  • Clozza Alberto,
  • Deda Griseld,
  • De Paolis Luca,
  • Del Grande Raffaele,
  • Fiorini Carlo,
  • Guaraldo Carlo,
  • Iliescu Mihail,
  • Iwasaki Masahiko,
  • King Pietro,
  • Levi Sandri Paolo,
  • Marton Johann,
  • Moskal Paweł,
  • Napolitano Fabrizio,
  • Niedźwiecki Szymon,
  • Piscicchia Kristian,
  • Scordo Alessandro,
  • Sgaramella Francesco,
  • Shi Hexi,
  • Silarski Michał,
  • Sirghi Diana,
  • Sirghi Florin,
  • Skurzok Magdalena,
  • Spallone Antonio,
  • Tüchler Marlene,
  • Vazquez Doce Oton,
  • Zmeskal Johann

DOI
https://doi.org/10.1051/epjconf/202225807006
Journal volume & issue
Vol. 258
p. 07006

Abstract

Read online

The X-ray spectroscopy measurements of light kaonic atoms’ deexcitation towards the fundamental level provide unique information on the low-energy Quantum ChromoDynamics (QCD) in the strangeness sector, being a direct probe of the kaon/nucleon interaction at threshold, unobtainable through the scattering experiments. In this framework, the SIDDHARTA-2 collaboration is going to perform the first kaonic deuterium 2p → 1s transition measurement at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati. Combining this measurement with the kaonic hydrogen one performed by SIDDHARTA in 2009 it will be possible to obtain, in a model-independent way, the isospin-dependent antikaon-nucleon scattering lengths. The paper introduces the SIDDHARTA-2 setup, an upgraded version with respect to the one used for the kaonic hydrogen measurement, dedicated to the ambitious kaonic deuterium measurement, together with the preliminary results obtained during the kaonic helium run, preparatory for the SIDDHARTA-2 data taking campaign.