Observation of weak neutral current neutrino production of J/psi

Eskut E., Kayis-Topaksu A., Onengut G., van Dantzig R., de Jong M., Konijn J., ...More

PHYSICS LETTERS B, vol.503, pp.1-9, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 503
  • Publication Date: 2001
  • Doi Number: 10.1016/s0370-2693(01)00130-7
  • Title of Journal : PHYSICS LETTERS B
  • Page Numbers: pp.1-9


Observation of J/psi production by neutrinos in the calorimeter of the CHORUS detector exposed to the CERN SPS wide-band nu (mu) beam is reported. A spectrum-averaged cross section sigma (J/psi) = (6.3 +/- 3.0) x 10(-41) cm(2) is obtained for 20 GeV less than or equal to E-nu less than or equal to 200 GeV. The data are compared with the theoretical model based on the QCD Z-gluon fusion mechanism. (C) 2001 Published by Elsevier Science B.V.