PDF and scale uncertainties of various DY distributions in ADD and RS models at hadron colliders
PDF and scale uncertainties of various DY distributions in ADD and RS models at hadron colliders
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DOI：
10.1140/epjc/s10052-006-0054-0
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发表时间：
2006-04
期刊：
影响因子：
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通讯作者：
M. Kumar;P. Mathews;V. Ravindran
中科院分区：
文献类型：
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作者：
M. Kumar;P. Mathews;V. Ravindran
在ADD和RS的额外维模型中，我们研究了在LHC和Tevatron能量下，QCD中Drell-Yan过程对非线性光学的各个部分子分布函数对观测值的依赖性。在LHC上，由于因子分解标度，在QCD中从前导到次前导阶的各种分布的不确定性在μ F范围0.5Q<μF<1.5Q时减少了约2.75倍。进一步的不确定性所产生的误差的实验数据估计使用MRST部分子分布函数。
In the extra dimension models of ADD and RS we study the dependence of the various parton distribution functions on observables of Drell–Yan processes to NLO in QCD at LHC and Tevatron energies. Uncertainties at LHC due to factorisation scales in going from leading to next-to-leading order in QCD for the various distributions get reduced by about 2.75 times for a μFrange 0.5Q<μF<1.5Q. Further uncertainties arising from the error on the experimental data are estimated using the MRST parton distribution functions.