Tests of models for quark and gluon fragmentation in e+e- annihilation at {Mathematical expression}

H. Aihara, M. Alston-Garnjost, J. A. Bakken, A. Barbaro-Galtieri, A. V. Barnes, B. A. Barnett, H. U. Bengtsson, B. J. Blumenfeld, A. D. Bross, C. D. Buchanan, O. Chamberlain, C. Y. Chien, A. R. Clark, A. Cordier, O. I. Dahl, C. T. Day, K. A. Derby, P. H. Eberhard, D. L. Fancher, H. FujiiB. Gabioud, J. W. Gary, W. Gorn, N. J. Hadley, J. M. Hauptman, W. Hofmann, J. E. Huth, J. Hylen, T. Kamae, H. S. Kaye, R. W. Kenney, L. T. Kerth, R. I. Koda, R. R. Kofler, K. K. Kwong, J. G. Layter, C. S. Lindsey, S. C. Loken, X. Q. Lu, G. R. Lynch, L. Madansky, R. J. Madaras, K. Maruyama, J. N. Marx, J. A.J. Matthews, S. O. Melnikoff, W. Moses, P. Nemethy, D. R. Nygren, P. J. Oddone, D. A. Park, A. Pevsner, M. Pripstein, P. R. Robrish, M. T. Ronan, R. R. Ross, F. R. Rouse, R. R. Sauerwein, G. Shapiro, M. D. Shapiro, B. C. Shen, W. E. Slater, M. L. Stevenson, D. H. Stork, H. K. Ticho, N. Toge, R. F. van Daalen Wetters, G. J. Van Dalen, R. van Tyen, E. M. Wang, M. R. Wayne, W. A. Wenzel, H. Yamamoto, M. Yamauchi, W. M. Zhang

    Research output: Contribution to journalArticlepeer-review


    Three currently used fragmentation models are tested by studying the distribution of particles between jet axes in the 3-jet events of e+e- annihilation, using data collected by the Time Projection Chamber at PEP. These three models - the Lund String model, the Webber Cluster model and an Independent Fragmentation model (IF) - each implement different Lorentz-frame structures for the fragmentation process of quarks and gluons into hadrons. The Lund model provides a good description of the data, while the IF model does not. The Webber model, which is untuned, does not describe the absolute particle densities between jets, but correctly predicts the ratios of those densities, which are less sensitive to the tuning.

    Original languageEnglish (US)
    Pages (from-to)31-44
    Number of pages14
    JournalZeitschrift für Physik C Particles and Fields
    Issue number1
    StatePublished - Mar 1985

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)


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