Recent Studies of Hypernuclei Formation with Electron Beams at MAMI (CROSBI ID 210229)
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Podaci o odgovornosti
Achenbach, P. ; Ayerbe Gayoso, C. ; Böhm, R. ; Borodina, O. ; Bosnar, Damir ; Bozkurt, V. ; Debenjak, L. ; Distler, M.O. ; Esser, A. ; Friščić, Ivica ; Fujii, Y. ; Gogami, T. ; Gómez Rodríguez, M. ; Hashimoto, O. ; Hirose, S. ; Kanda, H. ; Kaneta, M. ; Kim, E. ; Kusaka, J. ; Margaryan, A. ; Merkel, H. ; Müller, U. ; Nagao, S. ; Nakamura, S.N. ; Pochodzalla, J. ; Rappold, C. ; Reinhold, J. ; Saito, T.R. ; Sanchez Lorente, A. ; Sánchez Majos, S. ; Schlimme, B.S. ; Schoth, M. ; Schulz, F. ; Sfienti, C. ; Širca, S ; Tang, L. ; Thiel, M. ; Tsukada, K.
engleski
Recent Studies of Hypernuclei Formation with Electron Beams at MAMI
At the Mainz Microtron MAMI exploratory experiments on the spectroscopy of mesonic weak decays (MWD) of electroproduced Λ-hypernuclei were performed. A unique setup was realized to use the broad momentum-band kaon spectrometer Kaos at zero degree angle with respect to the high-intensity electron beam direction to tag strangeness producing processes. A sample of order 103 MWD from a beryllium target was collected by the coincidence technique with the high-resolution multi-spectrometer facility of the A1 Collaboration. It is conjectured that this sample contains monochromatic two-body decays from stopped hyperfragment decays as well as a wide momentum distribution of quasi-free produced Λ- and Σ-hyperon decays and three-body decays from hyperfragments. Stopped hyperfragments will be identified as monochromatic peaks in the π − momentum spectrum from which their masses can be extracted with a precision of 50 keV/c 2.
Hypernuclei; MAMI; KAOS; Mesonic weak decay
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