Search for diffractive charm production in 800 GeV/c proton-silicon interactions

K Kodama ,H Okabe,O Kusumoto,N Ushida,M Kazuno,E Niu,K Reibel,T Abe,Y Tsuzuki,G Fujioka,J.J Smetanka,K Niu,A Gauthier,M Teranaka,H Shibuya,H Yuuki,M Seshimo,P Skubic,T Hara,J Yokota,K Hoshino,T Okusawa,M Aryal,H Tajima,K Nakamura,S Yoshida,Y Isokane,I Tezuka,K Taruma,K Moriyama,Y Zhang,A Mokhtarani,S Nakanishi,N W Reay ,C S Yoon ,J S Kang ,K.s Chung ,D.c Kim ,M Y Pac ,Chiaki Yokoyama ,P M Yager ,J Dunlea ,B Lundberg ,M A Nomura ,T Fujii ,M Chikawa ,R A Sidwell ,J Volk ,J Russ ,T.y Kim ,Shuji Watanabe ,B G Cheon ,M Kobayashi ,Hiroshi Fukushima ,T Shin ,J Wilcox ,M Miyanishi ,R Lipton ,S Aoki ,Jong-Kwan Woo ,S Kuramata ,H I Jang ,N R Stanton ,T Tominaga ,R J Stefanski ,G Oleynik ,K S Sim ,Hirokazu Kitamura ,Kimitaka Nakazawa ,Y Tsuneoka ,C Zhang ,S Willis ,S.b Lee ,A Freyberger ,C.o Kim ,W R Nichols ,R M Edelstein ,S H Chung ,D Gibaut ,G Kalbfleisch ,K.y Kim ,T Yoshida ,Douglas M Potter ,Isamu Ikegami ,M.s Park ,K Fujiwara ,J Snow ,Yoshihiro Sato ,J.y Kim ,J.c Lee ,S D Chang ,B Baller ,Yuya Nakamura ,S Y Bahk ,Mitsuhiro Nakamura ,V Paolone ,S Nam ,Minoru Adachi ,Yoshiki Takahashi ,I.g Park ,K Niwa ,I T Lim ,G Y Lim ,Hiroyuki Shibata ,J Song ,S G Frederiksen ,T.i Kim ,J.h Cho ,S.k Kim

doi:10.1016/0370-2693(93)90678-b

Search for diffractive charm production in 800 GeV/c proton-silicon interactions

K Kodama , H Okabe + Show 107 more

https://doi.org/10.1016/0370-2693(93)90678-b

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#Silicon Nucleus #Search For Production + Show 8 more

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Abstract

A search for charm production in the coherent diffractive dissociation reaction pSi→XSi was carried out for the modes D 0→ K − π +, D 0→ K − π + π + π −, and D +→ K − π + π +. No charm signals were observed, and the 90% confidence level upper limit for coherent charm pair production was determined to be 26 μb per silicon nucleus. The results are interpreted as an upper limit of 0.2% on the amount of intrinsic charm in the proton.

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