Abstract
The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking.
| Original language | English (US) |
|---|---|
| Article number | 149 |
| Journal | European Physical Journal A |
| Volume | 57 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2021 |
Funding
We acknowledge financial support from the Bhabha Atomic Research Centre (BARC) and the Indian Institute of Technology Bombay, India; the Bundesministerium f\u00FCr Bildung und Forschung (BMBF), Germany; the Carl-Zeiss-Stiftung 21-0563-2.8/122/1 and 21-0563-2.8/131/1, Mainz, Germany; the Center for Advanced Radiation Technology (KVI-CART), Groningen, Netherlands; the CNRS/IN2P3 and the Universit\u00E9 Paris-Sud, France; the Czech Ministry (MEYS) Grants LM2015049, CZ.02.1.01/0.0/0.0/16 and 013/0001677, Czech Republic; the Deutsche Forschungsgemeinschaft (DFG), Germany; the Deutscher Akademischer Austauschdienst (DAAD), Germany; the European Union\u2019s Horizon 2020 research and innovation programme under grant agreement No 824093; the Forschungszentrum J\u00FClich, Germany; the Gesellschaft f\u00FCr Schwerionenforschung GmbH (GSI), Darmstadt, Germany; the Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany; the INTAS, European Commission funding; the Institute of High Energy Physics (IHEP) and the Chinese Academy of Sciences, Beijing, China; the Istituto Nazionale di Fisica Nucleare (INFN), Italy; the Ministerio de Educaci\u00F3n y Ciencia (MEC) under grant FPA2006-12120-C03-02, Spain; the Polish Ministry of Science and Higher Education (MNiSW) Grant No. 2593/7, PR UE/2012/2, and the National Science Centre (NCN) DEC-2013/09/N/ST2/02180, Poland; the State Atomic Energy Corporation Rosatom, National Research Center Kurchatov Institute, Russia; the Schweizerischer Nationalfonds zur F\u00F6rderung der Wissenschaftlichen Forschung (SNF), Switzerland; the Science and Technology Facilities Council (STFC), British funding agency, Great Britain; the Scientific and Technological Research Council of Turkey (TUBITAK) under the Grant No. 119F094, Turkey; the Stefan Meyer Institut f\u00FCr Subatomare Physik and the \u00D6sterreichische Akademie der Wissenschaften, Wien, Austria; the Swedish Research Council and the Knut and Alice Wallenberg Foundation, Sweden.
ASJC Scopus subject areas
- Nuclear and High Energy Physics