Abstract
On the basis of the k T -factorization approach, heavy-quarkonium \((c\bar c,b\bar b)\) hadroproduction at high energies is considered within nonrelativistic QCD in the leading order in α s and v. The p T spectra of various S-and P-wave quarkonium states at the Tevatron collider energies (run I and run II) are fitted, and sets of octet nonperturbative matrix elements are obtained for three different versions of the noncollinear gluon distribution in the proton.
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Original Russian Text © V.A. Saleev, D.V. Vasin, 2007, published in Yadernaya Fizika, 2007, Vol. 70, No. 9, pp. 1579–1587.
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Saleev, V.A., Vasin, D.V. Hadroproduction of heavy quarkonia at high energies within the k T -factorization approach. Phys. Atom. Nuclei 70, 1534–1542 (2007). https://doi.org/10.1134/S1063778807090074
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DOI: https://doi.org/10.1134/S1063778807090074