Spin Asymmetries in the Colour - Octet Model
نویسندگان
چکیده
We investigate the pattern of asymmetries in the colour-octet model for inclusive production of charmonium with polarised initial state hadrons and photons. We find that singly polarised asymmetries vanish. The double polarised asymmetry for J/ψ involves a new combination of long-distance matrix element. We also investigate the asymmetries for η c , χ c and Υ production. The asymmetries distinguish well between different models of charmonium production.
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تاریخ انتشار 1996