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Evidence for local compensation of baryon number in e+e− annihilation

1984; Elsevier BV; Volume: 139; Issue: 1-2 Linguagem: Inglês

10.1016/0370-2693(84)90047-9

1873-2445

Matthias Althoff, W. Braunschweig, F. J. Kirschfink, K. Lübelsmeyer, H.‐U. Martyn, J. Rimkus, P. Rosskamp, H.‐G. Sander, D. Schmitz, H. Siebke, W. Wallraff, H.M. Fischer, H. Hartmann, A. Jocksch, G. Knop, L. Köpke, H. Kolanoski, H. Kück, V. Mertens, R. Wedemeyer, M. Wollstadt, Y. Eisenberg, K. Gather, H. Hultschig, P. Joos, U. Kötz, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, K.H. Mess, D. Notz, R.J. Nowak, J. Pyrlik, R. Riethmüller, M. Rushton, W. Schütte, D. Trines, G. Wolf, Ch. Xiao, R. Fohrmann, E. Hilger, T. Kracht, Hajo Krasemann, P. Leu, E. Lohrmann, D. Pandoulas, G. Poelz, K. -U. Pösnecker, Peter Schmüser, B.H. Wiik, R. Beuselinck, D.M. Binnie, A. Campbell, P.J. Dornan, B. Foster, D.A. Garbutt, C. Jenkins, T.D. Jones, W.G. Jones, J. McCardle, J.K. Sedgbeer, J. Thomas, Wan Ahmad Tajuddin Wan Abdullah, K. W. Bell, M. G. Bowler, P. Bull, R.J. Cashmore, P. E. L. Clarke, R. Devenish, P. Grossmann, C. M. Hawkes, S. L. Lloyd, G.L. Salmon, T. R. Wyatt, C. Youngman, G. E. Forden, J.C. Hart, J. Harvey, D. Hasell, J. Proudfoot, D. H. Saxon, P.L. Woodworth, F. Barreiro, M. Dittmar, M. Holder, G. Kreutz, B. Neumann, E. Duchovni, U. Karshon, G. Mikenberg, R. Mir, D. Revel, E. Ronat, A. Shapira, G. Yekutieli, G. Baranko, T. Barklow, A. Caldwell, M. Cherney, J. M. Izen, M. Mermikides, G. Rudolph, D. Strom, M. Takashima, H. Venkataramania, E. Wicklund, S. L. Wu, G. Zobernig,

Quantum Chromodynamics and Particle Interactions

We have studied at CM energies of 14, 22 and 30–36.7 GeV e+e− annihilation events in which the hadronic final state contains both a proton and an antiproton in the momentum range 1.0 < p < GeV/c. We find that such pairs are produced predominantly in the same jet and conclude that baryon-antibaryon production is dominated by a mechanism involving local compensation of baryon number.