A γ-ray spectroscopy experiment via the (K−,π−) reaction (J-PARC E13-1st) will be performed at the J-PARC Hadron Experimental Facility using a newly developed Ge detctor array, Hyperball-J. Spin-dependent ΛN interactions will be studied through the precise measurement of the structure ΛΛ of hypernuclei, 4 He and 19F. In May 2013, commissioning of whole detector system was carried Λ Λ + 12 out and calibration data were taken. In particular, production cross sections of Σ and Λ C via the (K−, π−) reaction on the CH2 target for pK = 1.5 and 1.8 GeV/c were obtained.
Study of ΛN Interaction via the γ-ray Spectroscopy of \(_\Lambda ^4\textHe\) and \(_\Lambda ^19\textF\) (E13-1st)
BOTTA, Elena;MARCELLO, Simonetta;
2015-01-01
Abstract
A γ-ray spectroscopy experiment via the (K−,π−) reaction (J-PARC E13-1st) will be performed at the J-PARC Hadron Experimental Facility using a newly developed Ge detctor array, Hyperball-J. Spin-dependent ΛN interactions will be studied through the precise measurement of the structure ΛΛ of hypernuclei, 4 He and 19F. In May 2013, commissioning of whole detector system was carried Λ Λ + 12 out and calibration data were taken. In particular, production cross sections of Σ and Λ C via the (K−, π−) reaction on the CH2 target for pK = 1.5 and 1.8 GeV/c were obtained.
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