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Analysis of transverse momentum distributions forpp interactions at 360 GeV/c in the framework of a quark-diquark fragmentation model |
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| Authors: | J. L. Bailly F. Bruyant B. Buschbeck C. Caso Y. Chiba H. Dibon F. J. Diez-Hedo B. Epp A. Ferrando F. Fontanelli S. N. Ganguli V. G. Gavrjusev P. Girtler R. Hamatsu P. Herquet T. Hirose J. Hrubec Y. Iga Yu. Ivanyshevkov L. Jenik N. Khalatyan E. Kistenev T. Kobayashi J. M. Kohli S. Krasznovszky V. Kubik J. MacNaughton P. K. Malhotra L. Montanet G. Neuhofer P. Porth T. Rodrigo J. M. Salicio J. B. Singh S. Squarcia K. Sudhakar K. Takahashi L. A. Tikhonova U. Trevisan T. Tsurugai G. Zholobov S. A. Zotkin EHS-RCBC Collaboration |
| Affiliation: | 1. Faculté des Sciences, Université de l'Etat, B-7000, Mons, Belgium 2. European Organization for Nuclear Research, CERN, CH-1211, Geneva 23, Switzerland 3. Institute für Hochenergiephysik, A-1050, Wien, Austria 4. University of Genova and INFN, I-16146, Genova, Italy 5. Hiroshima University, 28009, Hiroshima, Japan 6. Junta de Energia Nuclear, E-28009, Madrid 3, Spain 7. Institut für Experimentalphysik, A-6020, Innsbruck, Austria 8. Tata Institute of Fundamental Research, 400005, Bombay, India 9. Moscow State University, SU-117234, Moscow, USSR 10. Tokyo Metropolitan University, 158, Tokyo, Japan 11. Institute for High-Energy Physics, SU-142284, Serpukhov, USSR 12. Central Research Institute for Physics, H-1389, Budapest, Hungary 13. Punjab University, 160014, Chandigarh, India 14. Tokyo University of Agriculture and Technology, 158, Tokyo, Japan |
| Abstract: | Using a quark-diquark fragmentation model, in which either the Field-Feynman or the Lund model is coupled with a quark-diquark distribution function, we study transverse momentum distributions,p T, for the inclusive reactionspp→hadron +anything at 360 GeV/c. We find that a primordial mean transverse momentum 〈k T〉?0.4 GeV/c can well reproduce thep T 2 distributions of charged hadrons, π0,K s 0 , Λ0,K * and Σ* and the Feynmanx?p T correlations. We confirm that a diquark in a proton plays an important rôle in reproducing thex?p T correlation of Λ0. |
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