Λp correlated production from low energy K⁻¹²C interactions by AMADEUS

¹ INFN Laboratori Nazionali di Frascati, Frascati, Rome, Italy
² Politecnico di Milano, Dip. di Elettronica, Informazione e Bioingegneria, Milano, Italy
³ Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania
⁴ University of Zagreb, Zagreb, Croatia
⁵ INFN Sezione di Milano, Milano, Italy
⁶ Stefan-Meyer-Institut für Subatomare Physik, Wien, Austria
⁷ Università degli Studi di Roma Tor Vergata, Rome, Italy
⁸ Excellence Cluster ‘Origin and Structure of the Universe’, Garching, Germany
⁹ Physik Department E12, Technische Universität München, Garching, Germany
¹⁰ INFN Sezione di Roma I, Rome, Italy
¹¹ Istituto Superiore di Sanità, Rome, Italy
¹² The University of Tokyo, Tokyo, Japan
¹³ RIKEN, The Institute of Physics and Chemical Research, Saitama, Japan
¹⁴ Institute of Physics, Jagiellonian University, Kracow, Poland
¹⁵ Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy
¹⁶ Departament de Fisica Quantica i Astrofisica and Institut de Ciencies del Cosmos, Universitat de Barcelona, Barcelona, Spain
¹⁷ National Centre for Nuclear Research, Warsaw, Poland

^* e-mail: raffaele.delgrande@lnf.infn.it

Published online: 1 February 2019

Abstract

The main steps for the analysis of the Λp correlated production in low-energy K⁻ captures on Carbon nuclei, performed by the AMADEUS collaboration, are presented. The goal is to perform the first comprehensive study of the K⁻ absorption on two, three and four nucleons, exploiting the lowmomentum K⁻s (p_K ~ 127 MeV/c) produced at the DAΦNE collider, and to measure the low-energy cross sections and branching ratios of the K⁻ multinucleon absorption processes in both the Λp and Σ⁰p channels. An integrated luminosity of 1.74 fb⁻¹ collected during the KLOE 2004/2005 data campaign is analysed by reconstructing the Λp final state.