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.A. 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 (1) , 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 (1) , 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 (1) , 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 (1) , 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

1 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

A feasibility study has been performed in order to investigate the performance of the HADES detector to measure the electromagnetic decays of the hyperon resonances $\Sigma(1385)^0$, $\Lambda(1405)$ and $\Lambda{\Lambda}(1520)$ as well as the production of double strange baryon systems $\Xi^-$ and $\Lambda\Lambda$ 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.

Mots clés: 4.5 GeV/nucleon; acceptance; performance; Sigma(1385); Lambda(1405); Darmstadt GSI FAIR; forward spectrometer; PANDA; HADES; p p: interaction; hydrogen: liquid; energy: kinetic; hyperon: electromagnetic decay

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

J. Adamczewski-Musch, A. Belyaev, A. Blanco, C. Blume, C. Charlotte, et al.. Production and electromagnetic decay of hyperons: a feasibility study with HADES as a Phase-0 experiment at FAIR. European Physical Journal A, 2021, 57 (4), pp.138. ⟨10.1140/epja/s10050-021-00388-w⟩. ⟨hal-02981291v2⟩