Production and electromagnetic decay of hyperons: a feasibility study with HADES as a phase-0 experiment at FAIR

J. Adamczewski-Musch,A. Belyaev,A. Blanco,C. Blume, C. Charlotte, D. S. Borisenko, C. Charlotte,L. Chlad,P. Chudoba,I. Ciepał,A. Derichs,D. Dittert,J. Dreyer,W. Esmail,O. Fateev,P. Fonte,J. Friese,I. Fröhlich,J. Förtsch,T. Galatyuk, I. Georgadze,O. Golosov,M. Golubeva,R. Greifenhagen,M. Grunwald,D. Grzonka,F. Guber,M. Gumberidze,S. Harabasz,T. Heinz, B. Heybeck,C. Höhne, M. Holona,R. Holzmann,H. Huck,A. Ierusalimov,M. Imre,A. Ivashkin,B. Kämpfer,K-H. Kampert,B. Kardan,V. Kedych, V. Khomyakov,I. Koenig,W. Koenig,M. Kohls,G. Kornakov,F. Kornas,R. Kotte,A. Kozela,V. Kozlov,I. Kres,J. Kuboś,A. Kugler,P. Kulessa,V. Ladygin,R. Lalik,C. Le Galliard,A. Lebedev,S. Lebedev,S. Linev,L. Lopes,M. Lorenz,G. Lykasov,A. Malige,J. Markert,T. Matulewicz,J. Michel,S. Morozov,C. Müntz,L. Naumann,K. Nowakowski,S. Orfanitsky,J. -H. Otto,V. Patel,C. Pauly,V. Pechenov,O. Pechenova,G. Perez Andrade,O. Petukhov,D. Pfeifer,K. Piasecki,J. Pietraszko,A. Prozorov,W. Przygoda,K. Pysz,B. Ramstein,N. Rathod,J. Regina,A. Reshetin,S. Reznikov, J. T. Rieger,J. Ritman,P. Rodriguez-Ramos,A. Rost,A. Rustamov,P. Salabura,J. Saraiva,N. Schild,E. Schwab,K. Schönning,F. Scozzi,F. Seck,I. Selyuzhenkov,V. Serdyuk,A. Shabanov,U. Singh,J. Smyrski,M. Sobiella,S. Spies,M. Strikhanov,H. Ströbele,J. Stroth,K. Sumara,O. Svoboda,M. Szala,J. Szewczyk,A. Taranenko,P. Tlusty,M. Traxler,V. Wagner,M. Wasiluk,A. A. Weber,C. Wendisch,P. Wintz,B. Włoch,H. P. Zbroszczyk, E. Zherebzova,A. Zhilin,A. Zinchenko,P. Zumbruch

The European Physical Journal A（2021）

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Abstract

feasibility study has been performed in order to investigate the performance of the HADES detector to measure the electromagnetic decays of the hyperon resonances Σ (1385)^0 , Λ (1405) and Λ (1520) as well as the production of double strange baryon systems Ξ ^- and Λ Λ in p + p reactions at a beam kinetic energy of 4.5 GeV . The existing HADES detector will be upgraded by a new Forward Detector, which extends the detector acceptance into a range of polar angles that plays a crucial role for these investigations. The analysis of each channel is preceded by a consideration of the production cross-sections. Afterwards the expected signal count rates using a target consisting of either liquid hydrogen or polyethylene are summarized.

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Key words

hyperons,electromagnetic decay,hades

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