The potential of Lambda and Xi(-) studies with PANDA at FAIR
Wronka, Slawomir/0000-0003-3277-138X; Diaz, Jose/0000-0002-7239-223X; Mochalov, Vasilii/0000-0002-5752-5807 ; The antiproton experiment PANDA at FAIR is designed to bring hadron physics to a new level in terms of scope, precision and accuracy. In this work, its unique capability for studies of hyperons is outlined. We discuss groundstate hyperons as diagnostic tools to study non-perturbative aspects of the strong interaction, and fundamental symmetries. New simulation studies have been carried out for two benchmark hyperon-antihyperon production channels: (p) over barp -> (Lambda) over bar Lambda and (p) over barp -> (Xi) over bar+Xi(-). The results, presented in detail in this paper, show that hyperon-antihyperon pairs from these reactions can be exclusively reconstructed with high efficiency and very low background contamination. In addition, the polarisation and spin correlations have been studied, exploiting the weak, self-analysing decay of hyperons and antihyperons. Two independent approaches to the finite efficiency have been applied and evaluated: one standard multidimensional efficiency correction approach, and one efficiency independent approach. The applicability of the latter was thoroughly evaluated for all channels, beam momenta and observables. The standard method yields good results in all cases, and shows that spin observables can be studied with high precision and accuracy already in the first phase of data taking with PANDA. ; Bhabha Atomic Research Centre (BARC), India; Indian Institute of Technology Bombay, India; Bundesministerium fur Bildung und Forschung (BMBF), GermanyFederal Ministry of Education & Research (BMBF); Carl-Zeiss-Stiftung, Mainz, Germany [21-0563-2.8/122/1, 21-0563-2.8/131/1]; Center for Advanced Radiation Technology (KVI-CART), Groningen, Netherlands; CNRS/IN2P3, FranceCentre National de la Recherche Scientifique (CNRS); Universite Paris-Sud, France; Czech Ministry (MEYS), Germany [LM2015049, CZ.02.1.01/0.0/0.0/16, 013/0001677]; Deutsche Forschungsgemeinschaft (DFG), GermanyGerman Research Foundation (DFG); Deutscher Akademischer Austauschdienst (DAAD), GermanyDeutscher Akademischer Austausch Dienst (DAAD); European Union's Horizon 2020 research and innovation programme [824093]; Forschungszentrum Julich, Germany; Gesellschaft fur Schwerionenforschung GmbH (GSI), Darmstadt, GermanyHelmholtz Association; Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany; INTAS, European Commission funding, China; Institute of High Energy Physics (IHEP), China; Chinese Academy of Sciences, Beijing, ChinaChinese Academy of Sciences; stituto Nazionale di Fisica Nucleare (INFN), Italy; Ministerio de Educacion y Ciencia (MEC)Spanish GovernmentEuropean Commission [FPA2006-12120-C03-02]; Polish Ministry of Science and Higher Education (MNiSW), PolandMinistry of Science and Higher Education, Poland [2593/7, PR UE/2012/2]; National Science Centre (NCN), PolandNational Science Centre, Poland [DEC-2013/09/N/ST2/02180]; State Atomic Energy Corporation Rosatom, National Research Center Kurchatov Institute, Russia; Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung (SNF), Swiss; Science and Technology Facilities Council (STFC), British funding agency, Great BritainUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [119F094]; Stefan Meyer Institut fur Subatomare Physik; osterreichische Akademie der Wissenschaften, Wien, Austria; Swedish Research CouncilSwedish Research CouncilEuropean Commission; Knut and Alice Wallenberg Foundation, SwedenKnut & Alice Wallenberg Foundation ; We acknowledge financial support from the Bhabha Atomic Research Centre (BARC) and the Indian Institute of Technology Bombay, India; the Bundesministerium fur 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 Universite Paris-Sud, France; the Czech Ministry (MEYS) grants LM2015049, CZ.02.1.01/0.0/0.0/16 and 013/0001677, the Deutsche Forschungsgemeinschaft (DFG), Germany; the Deutscher Akademischer Austauschdienst (DAAD), Germany; the European Union's Horizon 2020 research and innovation programme under grant agreement No 824093. the Forschungszentrum Julich, Germany; the Gesellschaft fur 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 Educacion y Ciencia (MEC) under grant FPA2006-12120-C03-02; 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 Forderung der Wissenschaftlichen Forschung (SNF), Swiss; 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 the Stefan Meyer Institut fur Subatomare Physik and the osterreichische Akademie der Wissenschaften, Wien, Austria; the Swedish Research Council and the Knut and Alice Wallenberg Foundation, Sweden.
