Polarised and Unpolarised Charmonium Production at Higher Orders in v
classification
✦ hep-ph
keywords
charmoniumhigherorderspolarisedproductionunpolarisedhadro-productionincluding
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We study the unpolarised and polarised hadro-production of charmonium in non-relativistic QCD (NRQCD) at low transverse momentum, including sufficiently higher orders in the relative velocity, $v$, so as to study the ratio of $\chi_{c1}$ and $\chi_{c2}$ production rates.
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