Observation of weak neutral current neutrino production of J/psi

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

PHYSICS LETTERS B, cilt.503, ss.1-9, 2001 (SCI İndekslerine Giren Dergi) identifier identifier


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.