A study of strange particle production in νμ 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 G 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,Malcolm Ellis,T. Fazio,G.J. Feldman,R. Ferrari, D. Ferrère,V. Flaminio, M. Fraternali,J.-M. Gaillard,E. Gangler,A G Geiser,D. Geppert,D. Gibin, S. Gninenko,A. Godley,J.-J. Gomez-Cadenas, J. Gosset,C. Gößling,M. Gouanère,A. Grant,G. Graziani,A. Guglielmi,C. Hagner,J A 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 V Kuznetsov,S. Lacaprara,C. Lachaud,B. Lakić,A. Lanza,L. La Rotonda,M. Laveder,A. Letessier-Selvon,J.-M. Levy,L. Linssen,A. Ljubičić,Jonathan Long,A. Lupi,A. Marchionni,F. Martelli,X. Méchain,J.-P. Mendiburu,J.-P. Meyer,M. Mezzetto,S.R. Mishra,G.F. Moorhead,D. Naumov,P. Nédélec,Yu. Nefedov,C. Nguyen-Mau, D. Orestano,Fernanda 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 J Schmidt,M E Sevior, D. Sillou,F.J.P. Soler,G. Sozzi,D. Steele,U. Stiegler,M. Stipčević,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,Vyacheslav Valuev,Francois Vannucci,K.E. Varvell,M. Veltri,Valerio Vercesi,G. Vidal-Sitjes,J.-M. Vieira,T. Vinogradova,F.V. Weber,T. Weisse,F.F. Wilson,L.J. Winton,B.D. Yabsley,H. Zaccone,K. Zuber,P. Zuccon

Nuclear Physics B（2002）

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摘要

A study of strange particle production in νμ charged current interactions has been performed using the data from the NOMAD experiment. Yields of neutral strange particles (K0s,Λ,Λ̄) have been measured. Mean multiplicities are reported as a function of the event kinematic variables Eν, W2 and Q2 as well as of the variables describing particle behaviour within a hadronic jet: xF, z and pT2. Decays of resonances and heavy hyperons with identified K0s and Λ in the final state have been analyzed. Clear signals corresponding to K★±, Σ★±, Ξ− and Σ0 have been observed.

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关键词

Neutrino interactions,Strange particle production

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