TY  - JOUR
AB  - We present results on J/psi production in muon interactions with tin and carbon targets at incident muon energies of 200 and 280 GeV. The ratio of cross sections per nucleon for J/psi production on tin and carbon, R(Sn/C), is studied as a function of p(T)2, z and x. We find an enhancement for coherent J/psi production R(coh)(Sn/C) = 1.54 +/- 0.07, a suppression for quasielastic production R(qe)(Sn/C) = 0.79 +/- 0.06 and for inelastic production R(in)(Sn/C) = 1.13 +/- 0.08. The inelastic cross section ratio can be interpreted within the Colour Singlet model as an enhancement ot the gluon distribution in tin with respect to that in carbon. The dependence of the ratio on z and p(T)2 can explain the discrepancy between the results obtained in previous experiments.
DA  - 1992
DO  - 10.1016/0550-3213(92)90686-6
KW  - CERN SPS
KW  - channel cross section: ratio
KW  - deep inelastic scattering: muon nucleus
KW  - color: singlet
KW  - coherent interaction: muon nucleus
KW  - effect: coherence
KW  - energy dependence
KW  - gluon: momentum spectrum
KW  - forward spectrometer: experimental results
KW  - hadroproduction: J/psi(3100)
KW  - muon nucleus: inclusive reaction
KW  - tin
KW  - J/psi(3100): hadroproduction
KW  - muon nucleus: coherent interaction
KW  - muon nucleus: deep inelastic scattering
KW  - x-dependence
KW  - transverse momentum: dependence
KW  - 200: 280 GeV
KW  - carbon
LA  - eng
IS  - 3
M2  - 553
PY  - 1992
SN  - 0550-3213
SP  - 553-566
T2  - Nucl.Phys. B
TI  - Ratio of J/Psi production cross sections in deep inelastic muon scattering from tin and carbon
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17778723
Y2  - 2024-11-24T17:18:45
ER  -