Production of neutral strange particles in muon-nucleon scattering at 490 GeV

M. R. Adams,M. Aderholz, S. Aïd,P. L. Anthony,M. D. Baker,J. Bartlett,A. A. Bhatti,H. M. Braun, W. Busza,J. M. Conrad,G. Coutrakon,R. Davisson,I. Derado,S. K. Dhawan,W. Dougherty,T. Dreyer,K. Dziunikowska,V. Eckardt,U. Ecker,M. Erdmann,A. Eskreys,J. Figiel,H. J. Gebauer,D. F. Geesaman,R. Gilman,M. C. Green,J. Haas,C. Halliwell,J. Hanlon,D. Hantke,V. W. Hughes,H. E. Jackson,D. E. Jaffe, G. Jancso,D. M. Jansen, K. Kadija, S. Kaufman,R. D. Kennedy,T. Kirk,H. G. E. Kobrak, S. Krzywdzinski, S. Kunori,J. J. Lord,H. J. Lubatti,D. McLeod,S. Magill,P. Malecki,A. Manz, H. Melanson,D. G. Michael,W. Mohr, H. E. Montgomery,J. G. Morfin,R. B. Nickerson,S. O'Day,K. Olkiewicz,L. Osborne, V. Papavassiliou,B. Pawlik,F. M. Pipkin,E. J. Ramberg,A. Röser,J. J. Ryan,C. W. Salgado, A. Salvarani,H. Schellman, M. Schmitt, N. Schmitz,K. P. Schüler,H. J. Seyerlein, A. Skuja,G. A. Snow, S. Söldner-Rembold,P. H. Steinberg,H. E. Stier,P. Stopa,R. A. Swanson,R. Talaga,S. Tentindo-Repond,H. J. Trost,H. Venkataramania,M. Wilhelm,J. Wilkes,R. Wilson,W. Wittek, S. A. Wolbers,T. Zhao,Fermilab E Collaboration

European Physical Journal C（1994）

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摘要

The production ofK0, ? and $\bar \Lambda$ particles is studied in the E665 muon-nucleon experiment at Fermilab. The average multiplicities and squared transverse momenta are measured as a function ofxF andW2. Most features of the data can be well described by the Lund model. Within this model, the data on the K0/p± ratios and on the averageK0 multiplicity in the forward region favor a strangeness suppression factors/u in the fragmentation process near 0.20. Clear evidence for QCD effects is seen in the average squared transverse momentum ofK0 and ? particles.

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关键词

Field Theory,Elementary Particle,Quantum Field Theory,Transverse Momentum,Particle Acceleration

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