Study of D*(+) Production in Nu(Mu) 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 Bunyatov,L Camilleri, A Cardini,PW 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,EDE Silva,J Dumarchez,M Ellis,T Fazio,GJ Feldman,R Ferrari,D Ferrere,V Flaminio,M Fraternali,JM Gaillard,E Gangler,A Geiser,D Geppert,D Gibin,S Gninenko,A Godley,JJ Gomez-Cadenas,J Gosset,C Gossling,M Gouanere,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,A Lanza,L La Rotonda,M Laveder,A Letessier-Selvon,JM Levy,L Linssen,A Ljubicic,J Long,A Lupi,A Marchionni,F Martelli,X Mechain,JP Mendiburu,JP Meyer,M Mezzetto,SR Mishra,GF Moorhead,D Naumov,P Nedelec,Y Nefedov,C Nguyen-Mau,D Orestano,F Pastore,LS 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 Sevior,D Sillou,FJP Soler,G Sozzi,D Steele,U Stiegler,M Stipcevic,T Stolarczyk,M Tareb-Reyes,GN Taylor,V Tereshchenko,A Toropin,AM Touchard,SN Tovey,MT Tran,E Tsesmelis,J Ulrichs,L Vacavant,M Valdata-Nappi,V Valuev,F Vannucci,KE Varvell,M Veltri,V Vercesi,G Vidal-Sitjes,JM Vieira,T Vinogradova,FV Weber,T Weisse,FF Wilson,LJ Winton,BD Yabsley,H Zaccone,K Zuber,P Zuccon

Physics letters B（2002）

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摘要

A search was made among numu charged current events collected in the NOMAD experiment for the reaction:nu(mu) + N --> mu(-) + D*+ + hadronshooked right arrowD(0) + pi(+)hooked right arrowK(-) + pi(+)A high purity D*+ sample composed of 35 events was extracted. The D*+ 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*+ is 0.67 +/- 0.02(stat.) +/- 0.02(syst.). The distributions of the fragmentation variables z, P-T(2) and x(F) for D*+ are also presented. (C) 2002 Elsevier Science B.V. All rights reserved.

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