A study of strange particles produced in neutrino neutral current interactions in the NOMAD experiment

D. Naumov,A. Chukanov,E. Naumova,B. Popov,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,P.W. Cattaneo,V. Cavasinni,A. Cervera-Villanueva,R. Challis,G. Collazuol,G. Conforto, C. Conta,M. Contalbrigo,R. Cousins,D. Daniels,R. Das,H. Degaudenzi,T. Del Prete,A. De Santo,T. Dignan,L. Di Lella,E. do Couto e Silva,J. Dumarchez,M. Ellis,G.J. Feldman,R. Ferrari, D. Ferrère,V. Flaminio, M. Fraternali,J.-M. Gaillard,E. Gangler,A. 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. Hernando,T.M. Hong,D. Hubbard,P. Hurst,N. Hyett,E. Iacopini,C. Joseph,F. Juget,N. Kent,M. Kirsanov,O. Klimov,J. Kokkonen,A. Kovzelev,A. Krasnoperov,S. Lacaprara,C. Lachaud,B. Lakić,A. Lanza,L. La Rotonda,M. Laveder,A. Letessier-Selvon,J.-M. Levy,L. Linssen,A. Ljubičić,J. Long,A. Lupi,V. Lyubushkin,A. Marchionni,F. Martelli,X. Méchain,J.-P. Mendiburu,J.-P. Meyer,M. Mezzetto,S.R. Mishra,G.F. Moorhead,P. Nédélec,Yu. Nefedov,C. Nguyen-Mau, D. Orestano,F. Pastore,L.S. Peak,E. Pennacchio,H. Pessard,R. Petti,A. Placci,G. Polesello,D. Pollmann,A. Polyarush,C. Poulsen,L. Rebuffi,J. Rico,P. Riemann,C. Roda, A. Rubbia,F. Salvatore,K. Schahmaneche,B. Schmidt,T. Schmidt,A. Sconza,M. Sevior,D. Shih, 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,V. Valuev,F. Vannucci,K.E. Varvell,M. Veltri,V. 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（2004）

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摘要

Results of a detailed study of strange particle production in neutrino neutral current interactions are presented using the data from the NOMAD experiment. Integral yields of neutral strange particles (Ks0, Λ, Λ¯) have been measured. Decays of resonances and heavy hyperons with an identified Ks0 or Λ in the final state have been analyzed. Clear signals corresponding to K⋆± and Σ(1385)± have been observed. First results on the measurements of the Λ polarization in neutral current interactions have been obtained.

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关键词

13.15.+g,12.15.Mm

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