Inclusive jet production, parton distributions, and the search for new physics

Inclusive jet production, parton distributions, and the search for new physics
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DOI:
10.1088/1126-6708/2003/10/046
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发表时间:
2003-03
影响因子:
5.4
通讯作者:
D. Stump;J. Huston;J. Pumplin;W. Tung;H. Lai;S. Kuhlmann;J. Owens
D. Stump;J. Huston;J. Pumplin;W. Tung;H. Lai;S. Kuhlmann;J. Owens
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
D. Stump;J. Huston;J. Pumplin;W. Tung;H. Lai;S. Kuhlmann;J. Owens

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Tevatron的喷气生产探测了目前可获得的一些最小距离尺度。与以前的测定相比,在大x处增强的胶子分布提供了对CDF和D?的Run 1b喷流数据的更好描述。然而,关于高x下的胶子分布仍然存在相当大的不确定性。在本文中,我们研究这种不确定性的影响,以及剩余的不确定性在非线性光学QCD理论,喷流截面比较运行1b数据。我们还计算了任何新物理学仍然可能做出的贡献的范围。预测还作出了扩大的运动学范围预计正在进行的运行2在Tevatron和LHC。
Jet production at the Tevatron probes some of the smallest distance scales currently accessible. A gluon distribution that is enhanced at large x compared to previous determinations provides a better description of the Run 1b jet data from both CDF and D?. However, considerable uncertainty still remains regarding the gluon distribution at high x. In this paper, we examine the effects of this uncertainty, and of the remaining uncertainties in the NLO QCD theory, on jet cross section comparisons to Run 1b data. We also calculate the range of contributions still possible from any new physics. Predictions are also made for the expanded kinematic range expected for the ongoing Run 2 at the Tevatron and for the LHC.