Charm meson production in 800 GeV/c proton-emulsion interactions

K. Kodama,N. Ushida,A. Mokhtarani,V.S. Paolone,J.T. Volk,J.O. Wilcox,P.M. Yager,R.M. Edelstein,A.P. Freyberger,D.B. Gibaut,R.J. Lipton,W.R. Nichols,D.M. Potter,J.S. Russ,Y. Zhang,H.I. Jang,J.Y. Kim,T.I. Kim,I.T. Lim,M.Y. Pac,B.R. Baller,R.J. Stefanski,K. Nakazawa,S. Tasaka,K.S. Chung,S.H. Chung,D.C. Kim,I.G. Park,M.S. Park,J.S. Song,C.S. Yoon,M. Chikawa,T. Abe,T. Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S.D. Chang,B.G. Cheon,J.H. Cho,J.S. Kang,C.O. Kim,K.Y. Kim,J.C. Lee,S.B. Lee,G.Y. Lim,S.W. Nam,T.S. Shin,K.S. Sim,J.K. Woo,Y. Isokane,Y. Tsuneoka,S. Aoki,A. Gauthier,K. Hoshino,H. Kitamura,M. Kobayashi,M. Miyanishi,K. Nakamura,S. Nakanishi,K. Niu,K. Niwa,H. Tajima,J.M. Dunlea,S.G. Frederiksen,S. Kuramata,B.G. Lundberg,G.A. Oleynik,N.W. Reay,K. Reibel,R.A. Sidwell,N.R. Stanton,K. Moriyama,H. Shibata,G.R. Kalbfleisch,P. Skubic,J.M. Snow,S.E. Willis,W.Y. Yuan,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Watanabe,J. Yamato,H. Okabe,J. Yokota,M. Adachi,M. Kazuno,F. Minakawa,E. Niu,H. Shibuya,O. Fukuda,Y. Sato,I. Tezuka,S.Y. Bahk,S.K. Kim,T.Y. Kim,M. Nakamura,Y. Nakamura,S. Watanabe; K. Kodama; N. Ushida; A. Mokhtarani; V.S. Paolone; J.T. Volk; J.O. Wilcox; P.M. Yager; R.M. Edelstein; A.P. Freyberger; D.B. Gibaut; R.J. Lipton; W.R. Nichols; D.M. Potter; J.S. Russ; Y. Zhang; H.I. Jang; J.Y. Kim; T.I. Kim; I.T. Lim; M.Y. Pac; B.R. Baller; R.J. Stefanski; K. Nakazawa; S. Tasaka; K.S. Chung; S.H. Chung; D.C. Kim; I.G. Park; M.S. Park; J.S. Song; C.S. Yoon; M. Chikawa; T. Abe; T. Fujii; G. Fujioka; K. Fujiwara; H. Fukushima; T. Hara; Y. Takahashi; K. Taruma; Y. Tsuzuki; C. Yokoyama; S.D. Chang; B.G. Cheon; J.H. Cho; J.S. Kang; C.O. Kim; K.Y. Kim; J.C. Lee; S.B. Lee; G.Y. Lim; S.W. Nam; T.S. Shin; K.S. Sim; J.K. Woo; Y. Isokane; Y. Tsuneoka; S. Aoki; A. Gauthier; K. Hoshino; H. Kitamura; M. Kobayashi; M. Miyanishi; K. Nakamura; S. Nakanishi; K. Niu; K. Niwa; H. Tajima; J.M. Dunlea; S.G. Frederiksen; S. Kuramata; B.G. Lundberg; G.A. Oleynik; N.W. Reay; K. Reibel; R.A. Sidwell; N.R. Stanton; K. Moriyama; H. Shibata; G.R. Kalbfleisch; P. Skubic; J.M. Snow; S.E. Willis; W.Y. Yuan; O. Kusumoto; T. Okusawa; M. Teranaka; T. Tominaga; T. Watanabe; J. Yamato; H. Okabe; J. Yokota; M. Adachi; M. Kazuno; F. Minakawa; E. Niu; H. Shibuya; O. Fukuda; Y. Sato; I. Tezuka; S.Y. Bahk; S.K. Kim; T.Y. Kim; M. Nakamura; Y. Nakamura; S. Watanabe

Charm meson production in 800 GeV/c proton-emulsion interactions

K. Kodama,N. Ushida,A. Mokhtarani,V.S. Paolone,J.T. Volk,J.O. Wilcox,P.M. Yager,R.M. Edelstein,A.P. Freyberger,D.B. Gibaut,R.J. Lipton,W.R. Nichols,D.M. Potter,J.S. Russ,Y. Zhang,H.I. Jang,J.Y. Kim,T.I. Kim,I.T. Lim,M.Y. Pac,B.R. Baller,R.J. Stefanski,K. Nakazawa,S. Tasaka,K.S. Chung,S.H. Chung,D.C. Kim,I.G. Park,M.S. Park,J.S. Song,C.S. Yoon,M. Chikawa,T. Abe,T. Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S.D. Chang,B.G. Cheon,J.H. Cho,J.S. Kang,C.O. Kim,K.Y. Kim,J.C. Lee,S.B. Lee,G.Y. Lim,S.W. Nam,T.S. Shin,K.S. Sim,J.K. Woo,Y. Isokane,Y. Tsuneoka,S. Aoki,A. Gauthier,K. Hoshino,H. Kitamura,M. Kobayashi,M. Miyanishi,K. Nakamura,S. Nakanishi,K. Niu,K. Niwa,H. Tajima,J.M. Dunlea,S.G. Frederiksen,S. Kuramata,B.G. Lundberg,G.A. Oleynik,N.W. Reay,K. Reibel,R.A. Sidwell,N.R. Stanton,K. Moriyama,H. Shibata,G.R. Kalbfleisch,P. Skubic,J.M. Snow,S.E. Willis,W.Y. Yuan,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Watanabe,J. Yamato,H. Okabe,J. Yokota,M. Adachi,M. Kazuno,F. Minakawa,E. Niu,H. Shibuya,O. Fukuda,Y. Sato,I. Tezuka,S.Y. Bahk,S.K. Kim,T.Y. Kim,M. Nakamura,Y. Nakamura,S. Watanabe;K. Kodama;N. Ushida;A. Mokhtarani;V.S. Paolone;J.T. Volk;J.O. Wilcox;P.M. Yager;R.M. Edelstein;A.P. Freyberger;D.B. Gibaut;R.J. Lipton;W.R. Nichols;D.M. Potter;J.S. Russ;Y. Zhang;H.I. Jang;J.Y. Kim;T.I. Kim;I.T. Lim;M.Y. Pac;B.R. Baller;R.J. Stefanski;K. Nakazawa;S. Tasaka;K.S. Chung;S.H. Chung;D.C. Kim;I.G. Park;M.S. Park;J.S. Song;C.S. Yoon;M. Chikawa;T. Abe;T. Fujii;G. Fujioka;K. Fujiwara;H. Fukushima;T. Hara;Y. Takahashi;K. Taruma;Y. Tsuzuki;C. Yokoyama;S.D. Chang;B.G. Cheon;J.H. Cho;J.S. Kang;C.O. Kim;K.Y. Kim;J.C. Lee;S.B. Lee;G.Y. Lim;S.W. Nam;T.S. Shin;K.S. Sim;J.K. Woo;Y. Isokane;Y. Tsuneoka;S. Aoki;A. Gauthier;K. Hoshino;H. Kitamura;M. Kobayashi;M. Miyanishi;K. Nakamura;S. Nakanishi;K. Niu;K. Niwa;H. Tajima;J.M. Dunlea;S.G. Frederiksen;S. Kuramata;B.G. Lundberg;G.A. Oleynik;N.W. Reay;K. Reibel;R.A. Sidwell;N.R. Stanton;K. Moriyama;H. Shibata;G.R. Kalbfleisch;P. Skubic;J.M. Snow;S.E. Willis;W.Y. Yuan;O. Kusumoto;T. Okusawa;M. Teranaka;T. Tominaga;T. Watanabe;J. Yamato;H. Okabe;J. Yokota;M. Adachi;M. Kazuno;F. Minakawa;E. Niu;H. Shibuya;O. Fukuda;Y. Sato;I. Tezuka;S.Y. Bahk;S.K. Kim;T.Y. Kim;M. Nakamura;Y. Nakamura;S. Watanabe;

physics letters b 1991 Vol. 263 pp. 573-578

167

watanabe1991physicscharm

Abstract

We report results on D0 and D+ production in proton-emulsion interactions at s=38.7 GeV. A fit to the form (1−|xF|)n exp (−bp2T) yields n=6.9+1.9−1.8 and b=0.84+0.10−0.08(GeV/c)−2. The total inclusive cross section, is assuming linear A dependence, is measured to be 38±3(stat.) ±13 (sys.) μb for the D0 and 38±9±14 μb for the D+. A comparison of these results with previous measurements indicates that nuclear effects do not strongly influence charm production. The predictions of QCD are in good agreement with our data.

Keywords

agreement gev/c charm exp emulsion interactions proton emulsion

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10.1016/0370-2693(91)90506-l

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