TY  - INPR
A1  - Gerland, Lars
A1  - Frankfurt, Leonid
A1  - Strikman, Mark
A1  - Stöcker, Horst
A1  - Greiner, Walter
T1  - J/Psi production, chi polarization and color fluctuations
N2  - The hard contributions to the heavy quarkonium-nucleon cross sections are calculated based on the QCD factorization theorem and the nonrelativistic quarkonium model. We evaluate the nonperturbative part of these cross sections which dominates at psNN 20 GeV at the Cern Super Proton Synchrotron (SPS) and becomes a correction at psNN 6 TeV at the CERN Large Hadron Collider (LHC). J/psi production at the CERN SPS is well described by hard QCD, when the larger absorption cross sections of the states predicted by QCD are taken into account. We predict an A-dependent polarization of the states. The expansion of small wave packets is discussed.
KW  - Teilchenbeschleuniger
KW  - Hadronenbeschleuniger
KW  - Quanten-Chromodynamik
KW  - LHC
KW  - SPS
KW  - Super Proton Synchrotron
KW  - Large Hadron Collider
KW  - Quantum Chromodynamic
KW  - LHC
KW  - SPS
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3081
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-23194
ER  -