Measurement of the interference structure function xG3(x) in muon-nucleon scattering

A. Argento, A. C. Benvenuti, D. Bollini, G. Bruni, T. Camporesi, G. Heiman, L. Monari, F. L. Navarria, M. Bozzo, K. Deiters, H. Gennow, M. Goossens, W. D. Nowak, L. Piemontese, A. Staude, D. Yu Bardin, J. Cvach, N. G. Fadeev, I. A. Golutvin, Yu T. KiryushinV. S. Kisselev, M. Klein, A. Kondor, V. G. Krivokhizhin, V. V. Kukhtin, I. A. Savin, G. I. Smirnov, J. Strachota, G. Sultanov, P. Todorov, H. Vogt, A. G. Volodko, J. Žaček, D. Jamnik, R. Kopp, U. Meyer-Berkhout, K. M. Teichert, R. Tirler, R. Voss, Č Zupančič, M. Cribier, J. Feltesse, A. Milsztajn, A. Ouraou, J. F. Renardy, P. Rich-Hennion, Y. Sacquin, G. Smadja, P. Verrecchia, G. Vesztergombi, M. Virchaux

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28 Citations (Scopus)


The interference structure function xG3(x) has been measured for the first time scattering positive and negative muons of opposite helicity off a carbon target. The x dependence observed for Q2 between 40 and 180 (GeV/c2) is in good agreement with predictions of the quark-parton model. The measured ratio 2(auQu + adQd)/(Qu2 + Qd2 = 1.87 ± 0.25 (stat.) ± 0.24 (syst.) is consistent with the hypothesis of fractional quark charges and determines the sign of Qu - Qd to be positive.

Original languageEnglish
Pages (from-to)142-144
Number of pages3
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - May 31 1984

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Argento, A., Benvenuti, A. C., Bollini, D., Bruni, G., Camporesi, T., Heiman, G., Monari, L., Navarria, F. L., Bozzo, M., Deiters, K., Gennow, H., Goossens, M., Nowak, W. D., Piemontese, L., Staude, A., Bardin, D. Y., Cvach, J., Fadeev, N. G., Golutvin, I. A., ... Virchaux, M. (1984). Measurement of the interference structure function xG3(x) in muon-nucleon scattering. Physics Letters B, 140(1-2), 142-144.