arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1301.2233hep-ex
收藏

TeV =1.96时ppbar碰撞微分截面比σ(ppbar-> Z + bjet)/σ(ppbar -> Z + jet)的测量

Measurement of the ratio of differential cross sections σ(ppbar -> Z + b jet)/σ(ppbar -> Z + jet) in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration

摘要:

我们测量了一个Z玻色子与至少一个喷注的关联产生的截面比σ(ppbar-> Z + b喷注)/σ(ppbar -> Z +喷注)。该比率也被测量为射流横向动量,射流伪快度,Z玻色子横向动量,和Z玻色子和最近的喷气事件与至少一个b喷气之间的方位角的函数。这些测量使用费米实验室的Tevatron ppbar对撞机运行II中的D 0实验收集的数据,质心能量为1.96 TeV,对应的积分亮度为9.7 fb $^{-1}$。结果进行比较,从下一个领先的顺序计算和各种Monte Carlo事件发生器的预测。

英文摘要:

We measure the ratio of cross sections, σ(ppbar -> Z + b jet)/σ(ppbar -> Z + jet), for associated production of a Z boson with at least one jet. The ratio is also measured as a function of the jet transverse momentum, jet pseudorapidity, Z boson transverse momentum, and the azimuthal angle between the Z boson and the closest jet for events with at least one b jet. These measurements use data collected by the D0 experiment in Run II of Fermilab's Tevatron ppbar Collider at a center-of-mass energy of 1.96 TeV, and correspond to an integrated luminosity of 9.7 fb$^{-1}$. The results are compared to predictions from next-to-leading order calculations and various Monte Carlo event generators.

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。

↑