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arXiv 0909.1547hep-phhep-exhep-lathep-th
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$O(α_s^2)$和$O(α_s^3)$重口味对$Q^2 \gg m^2$横向性的贡献

$O(α_s^2)$ and $O(α_s^3)$ Heavy Flavor Contributions to Transversity at $Q^2 \gg m^2$

J. Blümlein, S. Klein, B. Tödtli

摘要:

在深度非弹性过程中,重味Wilson系数将$Q^2 \gg m^2$分解为相应过程的轻味Wilson系数和大量算子矩阵元(OME)。我们计算了味非单重态横向分布的$O(α_s^2)$和$O(α_s^3)$大量OME。在$O(α_s^2)$,对于梅林变量$N$的一般值获得OME,而在$O(α_s^3)$,计算矩$N = 1$至13。得到了三圈横观反常维数的项$\propto T_F$,证实了文献中的结果.我们讨论的关系,这些贡献的Soffer约束的横向。

英文摘要:

In deep-inelastic processes the heavy flavor Wilson coefficients factorize for $Q^2 \gg m^2$ into the light flavor Wilson coefficients of the corresponding process and the massive operator matrix elements (OMEs). We calculate the $O(α_s^2)$ and $O(α_s^3)$ massive OME for the flavor non-singlet transversity distribution. At $O(α_s^2)$ the OME is obtained for general values of the Mellin variable $N$, while at $O(α_s^3)$ the moments $N = 1$ to 13 are computed. The terms $\propto T_F$ of the 3--loop transversity anomalous dimension are obtained and results in the literature are confirmed. We discuss the relation of these contributions to the Soffer bound for transversity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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