Observation of D^+_srightarrow pbar{n} and confirmation of its large branching fraction

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Budker Institute of Nuclear Physics SB RAS (BINP) Novosibirsk Russia (10) GSI Helmholtzcentre for Heavy Ion Research GmbH Darmstadt Germany (11) Guangxi Normal University Guilin People's Republic of China (12) Guangxi University Nanning 530004 People's Republic of China (13) Hangzhou Normal University Hangzhou People's Republic of China (14) Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45 D-55099 Mainz Germany (15) Henan Normal University Xinxiang People's Republic of China (16) Henan University of Science Luoyang People's Republic of China (17) Huangshan College Huangshan People's Republic of China (18) Hunan Normal University Changsha People's Republic of China (19) Hunan University People's Republic of China (20) Indian Institute of Technology Madras Chennai India (21) Indiana University Bloomington Indiana USA (22) (A) INFN Laboratori Nazionali di Frascati Frascati Italy (B) INFN University of Perugia Perugia Italy (23) (A) INFN Sezione di Ferrara Ferrara (B) University of Ferrara Italy (24) Institute of Physics Ulaanbaatar Mongolia (25) Johannes Gutenberg University of Mainz Mainz Germany (26) Joint Institute for Nuclear Research Dubna Moscow region Russia (27) Justus-Liebig-Universitaet Giessen II. 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(j) Currently at: Center for Underground Physics Institute for Basic Science Daejeon Korea)