Observation of weak neutral current neutrino production of J/ψ

Physics Letters B(2001)

Cited 18|Views38
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Abstract
Observation of J/ψ production by neutrinos in the calorimeter of the CHORUS detector exposed to the CERN SPS wide-band νμ beam is reported. A spectrum-averaged cross section σJ/ψ=(6.3±3.0)×10−41 cm2 is obtained for 20 GeV ⩽Eν⩽ 200 GeV. The data are compared with the theoretical model based on the QCD Z-gluon fusion mechanism.
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Key words
J/ψ,Neutrino,Neutral currents,Nucleon
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