arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0907.4614hep-ph
收藏

NNPDF1 .2部分子集:对LHC的影响

The NNPDF1.2 parton set: implications for the LHC

Alberto Guffanti, Juan Rojo, Maria Ubiali

摘要:

最近,一组新的部分子分布函数(NNPDF1.2)已经产生并由NNPDF协作发布。在分析中包含的dimuon数据允许确定的奇怪的内容的质子与忠实的不确定性估计连同一个精确的测定电弱参数。在这篇文章中,我们讨论了一些NNPDF1.2集的影响,特别是它的不确定性确定的奇怪的PDF,大型强子对撞机的现象。首先,我们研究了Z/W比对电弱玻色子产生截面的影响。然后,我们重新访问的顶部对生产截面,并执行不同的PDF集之间的部分子通量的比较。最后,我们讨论了在Tevatron和LHC上利用W与粲夸克的关联产生来限制质子奇异性的可能性。

英文摘要:

Recently a new set of Parton Distribution Functions (NNPDF1.2) has been produced and released by the NNPDF Collaboration. The inclusion of dimuon data in the analysis allows a determination of the strange content of the proton with faithful uncertainty estimation together with a precision determination of electroweak parameters. In this contribution, we discuss some of the implications of the NNPDF1.2 set, and in particular of its uncertainty determination of the strange PDFs, for LHC phenomenology. First of all, we study the impact on the electroweak boson production cross-section, with special attention to the Z/W ratio. Then we revisit the top pair production cross-section, and perform a comparison of partonic fluxes between various PDF sets. Finally, we discuss the potential of using associated production of W with a charm quark at the Tevatron and the LHC to constrain the proton strangeness.

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。

↑