We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering, namely the energy-energy correlation asymmetry and the newly introduced particle-particle correlation asymmetry, with the predictions of various parton shower models. Only those models which incorporate the expected interference agree with the data.

Evidence For Gluon Interference In Hadronic Z-decays / M., A., A., A., O., A., M., A., S., A., B., A., J., A., J., A., A., A., G., A., M. G., A., G., A., Q., A.n., H., A., V. P., A., T., A., D., A., A., A., T., A., T., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 353:(1995), pp. 145-154. [10.1016/0370-2693(95)00552-V]

Evidence For Gluon Interference In Hadronic Z-decays

BAGNAIA, Paolo;FACCINI, Riccardo;FERRONI, Fernando;GENTILE, Simonetta;GIAGU, Stefano;ORGANTINI, Giovanni;
1995

Abstract

We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering, namely the energy-energy correlation asymmetry and the newly introduced particle-particle correlation asymmetry, with the predictions of various parton shower models. Only those models which incorporate the expected interference agree with the data.
1995
01 Pubblicazione su rivista::01a Articolo in rivista
Evidence For Gluon Interference In Hadronic Z-decays / M., A., A., A., O., A., M., A., S., A., B., A., J., A., J., A., A., A., G., A., M. G., A., G., A., Q., A.n., H., A., V. P., A., T., A., D., A., A., A., T., A., T., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 353:(1995), pp. 145-154. [10.1016/0370-2693(95)00552-V]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/472642
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