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arXiv 0908.2658hep-ex
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从H1的D* 截面中提取F_2^c(x,Q^2)

Extraction of F_2^c(x,Q^2) from D* cross sections at H1

Andreas Werner Jung

摘要:

利用深度非弹性散射中D*(2010)介子产生的包含性截面确定了粲对质子结构的贡献F_2 ^c(x,Q^2)。截面测量覆盖了光子虚性中的5 <Q ~ 2 < 1000 GeV ~ 2和散射过程的非弹性中的0.02 < y < 0.70的区域。测量了D* 介子的横动量和赝快度,p_T <1.5 GeV,|eta| < 1.5.用H1探测器获取数据,对应于347 pb-1的积分亮度。F_2 ^c由D* 产生截面确定,并与首阶和次首阶微扰QCD预言进行了比较。

英文摘要:

The charm contribution to the proton structure, F_2^c(x,Q^2), is determined using the inclusive cross sections of D*(2010) meson production in deep-inelastic scattering. The cross section measurement covers the region 5 < Q2 < 1000 GeV2 in photon virtuality and 0.02 < y < 0.70 in the inelasticity of the scattering process. The D* meson is measured in transverse momentum and pseudo-rapidity down to p_T > 1.5 GeV and up to |eta| < 1.5. The data were taken with the H1 detector corresponding to an integrated luminosity of 347 pb-1. F_2^c is determined from the D* production cross sections and compared to leading and next-to-leading order perturbative QCD predictions.

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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