Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes

Details Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes

1994-09-02

arxiv.org/abs/hep-ph/9409208v1

Phys.Rev.D51:4746-4755,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX format, 19 pages, 20 figures in uuencoded format. Postscript file available at ftp://smuphy.physics.smu.edu/usr/ftpdir/p

Scientific paper

10.1103/PhysRevD.51.4746

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 $\mu$. 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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