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Low energy Antikaon-nucleon/nuclei interaction studies by AMADEUS

  • K. Piscicchia
  • , M. Cargnelli
  • , C. Curceanu
  • , R. Del Grande
  • , L. Fabbietti
  • , C. Guaraldo
  • , J. Marton
  • , P. Moskal
  • , A. Scordo
  • , M. Silarski
  • , D. Sirghi
  • , M. Skurzok
  • , I. Tucakovic
  • , O. Vazquez Doce
  • , S. Wycech
  • , E. Widmann
  • , J. Zmeskal
  • Centro Fermi
  • INFN, Laboratori Nazionali Di Frascati
  • Stefan Meyer Institut für Subatomare Physik (SMI)
  • Cluster of Excellence E-conversion
  • Jagiellonian University
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Rudjer Boskovic Institute
  • Technical University of Munich
  • National Center for Nuclear Research (NCBJ)

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K- interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K- absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 100 MeV) in-flight K- captures. With AMADEUS step 1, a dedicated pure carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K- nuclear interaction. The first measurement of the nonresonant transition amplitude/AK-n→λπ-/at √s = 33 MeV below the K̄N threshold is presented, in relation with the Λ(1405) properties studies.

Original languageEnglish
Pages (from-to)609-616
Number of pages8
JournalActa Physica Polonica B, Proceedings Supplement
Volume11
Issue number3
DOIs
StatePublished - 2018

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