Comparison of the particle flow in $q\bar q\gamma $ and $q\bar qg$ events from $\mathrm{e^+ e^−}$ annihilations at PETRA
- Ould Saada, F.
- Allison, J.
- Clarke, D.
- Dieckmann, A.
- Duerdoth, I. P.
- Eckerlin, G.
- Elsen, E.
- Felst, R.
- Finch, A. J.
- Foster, F.
- Greenshaw, T.
- Hagemann, J.
- Ambrus, K.
- Haidt, D.
- Heintze, J.
- Heinzelmann, G.
- Hellenbrand, K. H.
- Hill, P.
- Hughes, G.
- Kado, H.
- Kawagoe, K.
- Kawamoto, T.
- Kleinwort, C.
- Barlow, R. J.
- Knies, G.
- Komamiya, S.
- Krehbiel, H.
- Krogh, J. v.
- Kuhlen, M.
- Loebinger, F. K.
- Macbeth, A. A.
- Magnussen, N.
- Marshall, R.
- Meinke, R.
- Bartel, W.
- Middleton, R. P.
- Mills, H. E.
- Minowa, M.
- Murphy, P. G.
- Naroska, B.
- Nye, J. M.
- Olsson, J.
- Petersen, A.
- Ramcke, R.
- Rieseberg, H.
- Becker, L.
- Schmidt, D.
- Schmitt, H. v. d.
- Smolik, L.
- Schneekloth, U.
- Skard, J. A. J.
- Spitzer, J.
- Steffen, P.
- Stephens, K.
- Wagner, A.
- Walker, I. W.
- Bethke, S.
- Warming, P.
- Weber, G.
- Zimmer, M.
- Zorn, G. T.
- JADE Collaboration
- Bowdery, C. K.
- Cartwright, S. L.
- Chrin, J.
DOIAbstract
The particle flow distributions in the event plane of 3-jet(e$^+$e$^−$→q$\bar q$g) and of radiative 2-jet(e$^+$e$^−$→q$\bar q$γ) events are compared at a centre of mass energy of 35 GeV. The number of particles in the angular region opposite to the gluon inqq¯g events is found to be significantly reduced relative to the number of particles in the region opposite to the hard photon inqq¯γ events. This depletion is expected from the “string effect” observed in 3-jet events. It can be explained within the framework of QCD as arising from soft gluon interference
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