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arXiv · hep-ph/9708479

Polarised and Unpolarised Charmonium Production at Higher Orders in v

Sourendu Gupta·Prakash Mathews
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Abstract

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 $χ_{c1}$ and $χ_{c2}$ production rates.

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Sourendu Gupta, Prakash Mathews. 1997-08-28. Polarised and Unpolarised Charmonium Production at Higher Orders in v. https://doi.org/10.1016/s0920-5632(97)01105-5

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