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The 3-Loop Non-Singlet Heavy Flavor Contributions to the Structure Function g₁(x,Q²) at Large Momentum Transfer
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The 3-Loop Non-Singlet Heavy Flavor Contributions to the Structure Function g₁(x,Q²) at Large Momentum Transfer
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We calculate the massive flavor non-singlet Wilson coefficient for the heavy flavor contributions to the polarized structure function $g_1(x,Q^2)$ in the asymptotic region $Q^2 \gg m^2$ to 3-loop order in Quantum Chromodynamics at general values of the Mellin variable $N$ and the momentum fraction $x$, and derive heavy flavor corrections to the Bjorken sum-rule. Numerical results are presented for the charm quark contribution. Results on the structure function $g_2(x,Q^2)$ in the twist-2 approximation are also given.
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