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Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes

Fredrick I. Olness·Stephan T. Riemersma
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Abstract

We compare the results of the fixed-flavor scheme calculation of Laenen, Riemersma, Smith and van Neerven with the variable-flavor scheme calculation of Aivazis, Collins, Olness and Tung for the case of neutral-current (photon-mediated) heavy-flavor (charm and bottom) production. Specifically, we examine the features of both calculations throughout phase space and compare the structure function $F_2(x,Q^2)$. We also analyze the dependence of $F_2$ on the mass factorization scale $μ$. We find that the former is most applicable near threshold, while the latter works well for asymptotic $Q^2$. The validity of each calculation in the intermediate region is dependent upon the $x$ and $Q^2$ values chosen.

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Fredrick I. Olness, Stephan T. Riemersma. 1994-09-02. Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes. https://doi.org/10.1103/physrevd.51.4746

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