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arXiv 0908.4180hep-ph
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DIS在小x或离核时的排斥和衍射矢量介子产生

Exclusive vs. diffractive vector meson production in DIS at small x or off nuclei

C. Marquet, B. Wu

摘要:

在McLerran-Venugopalan模型下计算了矢量介子在深度非弹性散射中的衍射产生。当虚光子探测到大的部分子密度时,这是相关的,就像在小的Bjorken x或DIS离核的情况一样。我们调查的独家生产(当目标不打破),占主导地位的小动量转移平方|t|,和衍射生产(当目标散射非弹性),占主导地位的大|t|之间的差异。

英文摘要:

The diffractive production of vector mesons in deep inelastic scattering (DIS) is calculated in the McLerran-Venugopalan model. This is relevant when large parton densities are probed by the virtual photon, as is the case at small Bjorken x or in DIS off nuclei. We investigate differences between the exclusive production (when the target doesn't break up) which dominates at small momentum transfer squared |t|, and the diffractive production (when the target scatters inelastically) which dominates at large |t|.

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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