标题： 在Tevatron Run II和LHC上利用'光子/Z^0+喷注'事件测量胶子分布的可能性 显示英文标题

标题： On the Possibilities of Measuring the Gluon Distribution Using 'photon/Z^0+jet' Events at Tevatron Run II and LHC

摘要： 适用于在Tevatron Run II以及未来LHC实验的低亮度运行中确定质子中的胶子分布函数的光子+喷注和Z+喷注事件的数量，对于不同的x和Q^2区间进行了估算。 这些数量允许在Tevatron的2 * 10^{-3} < x < 1.0范围内提取胶子分布，1.6*10^3 < Q^2 < 2*10^4 ~(GeV/c)^2，以及在LHC的2* 10^{-4} < x < 1.0范围内，1.6*10^3 < Q^2 < 2*10^5 ~(GeV/c)^2。 不同Q^2区间的背景事件贡献也给出了。 显示英文摘要

摘要： The number of photon+jet and Z+jet events suitable for a determination of gluon distribution function in a proton at Tevatron Run II and during the low luminosity runs at future LHC experiments are estimated for various intervals of x and Q^2. These numbers allow to extract gluon distribution in new kinematic regions of 2 * 10^{-3} < x < 1.0 with 1.6*10^3 < Q^2 < 2*10^4 \~(GeV/c)^2 at Tevatron and of 2* 10^{-4} < x < 1.0$ with 1.6*10^3 < Q^2 < 2*10^5 ~(GeV/c)^2 at LHC. The contributions of background events in different Q^2 intervals are also given.