Study of D^star+ production in muon neutrino charged current interactions in the NOMAD experiment

P. Astier,D. Autiero, A. Baldisseri,M. Baldo-Ceolin,M. Banner,G. Bassompierre, K. Benslama, N. Besson,I. Bird, B. Blumenfeld,F. Bobisut,J. Bouchez,S. Boyd,A. Bueno,S.A. Bunyatov,L. Camilleri,A. Cardini,P.W. Cattaneo, V. Cavasinni,A. Cervera-Villanueva, R. Challis,A. Chukanov,G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins,D. Daniels, H. Degaudenzi,T. Del Prete,A. De Santo, T. Dignan, L. Di Lella,E. do Couto e Silva,J. Dumarchez, M. Ellis, T. Fazio, G.J. Feldman,Roberto Ferrari, D. Ferr re, V. Flaminio, M. Fraternali,J.M. Gaillard, E. Gangler, Achim Geiser, D. Geppert, D. Gibin, S. Gninenko,A. Godley, J.J. Gomez-Cadenas, J. Gosset, C. Goessling, M. Gouan re,A. Grant, G. Graziani, A. Guglielmi,C. Hagner,J. Hernando,D. Hubbard,P. Hurst,N. Hyett,E. Iacopini, C. Joseph,F. Juget,N. Kent, M. Kirsanov,O. Klimov, J. Kokkonen, A. Kovzelev,A. Krasnoperov, D. Kustov,V. Kuznetsov, S. Lacaprara,C. Lachaud, B. Lakic,Agostino Lanza,L. La Rotonda,M. Laveder, A. Letessier-Selvon, J.M. Levy,L. Linssen,A. Ljubičić, J. Long,A. Lupi,A. Marchionni,F. Martelli, X. Méchain, J.-P. Mendiburu, J. Meyer,M. Mezzetto,S. R. Mishra, G. F. Moorhead, D. Naumov, P. Nedelec,Yu. Nefedov, C. Nguyen-Mau, Domizia Orestano, F. Pastore, L.S. Peak,E. Pennacchio,H. Pessard,R. Petti, A. Placci, G. Polesello, D. Pollmann, A. Polyarush,B. Popov,C. Poulsen,J. Rico, P. Riemann, C. Roda, A. Rubbia, F Salvatore, K. Schahmaneche,B. Schmidt,T. Schmidt,M. E. Sevior, D. Sillou, F. J. P. Soler,G. Sozzi,D. Steele, U. Stiegler,M. Stipcevic,Th. Stolarczyk, M. Tareb-Reyes, G. N. Taylor,V. Tereshchenko, A. Toropin, A.M. Touchard, S.N. Tovey,M.T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi,V. Valuev, V. Vannucci,K. E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J.-M. Vieira,T. Vinogradova, F.W. Weber,T. Weisse, F. F. Wilson, L.J. Winton, B. Yabsley,H. Zaccone, H. Zuber,P. Zuccon

Physics Letters B(2002)

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摘要
A search was made among nu mu charged current events collected in the NOMAD experiment for the reaction: nu mu+N---\u003enu+D(star)^+ hadrons--\u003e D^0+pi^+K^- + pi^+. A high purity D(star)+ sample composed of 35 events was extracted. The D(star)+ yield in nu mu charged current interactions was measured to be T=(0.79?0.17(stat.)?0.10(syst.))%. The mean fraction of the hadronic jet energy taken by the D(star)+ is 0.67?0.02(stat.)?0.02(syst.). The distributions of the fragmentation variables z, PT2 and xF for D(star)+ are also presented.
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