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arXiv 1609.07045hep-ex
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用ATLAS探测器测量在$\sqrt{s}=$ 8 TeV处具有高横向动量喷流事件中的$W$玻色子角分布

Measurement of $W$ boson angular distributions in events with high transverse momentum jets at $\sqrt{s}=$ 8 TeV using the ATLAS detector

ATLAS Collaboration

摘要:

利用ATLAS实验收集的数据测量了具有高横向动量喷流的事件中的$W$玻色子角分布,该实验在大型强子对撞机上进行,质子-质子碰撞的质心能量为$\sqrt{s}=$ 8 TeV,对应于20.3 fb $^{-1}$的积分亮度。重点是贡献$W$ +喷流过程从真正的$W$发射,这是通过研究事件中观察到一个μ子接近高横向动量射流。在小的角间距,这些贡献预计是大的。这个过程的各种理论模型进行比较的绝对截面和μ介子的角分布从轻子$W$衰变的数据。

英文摘要:

The $W$ boson angular distribution in events with high transverse momentum jets is measured using data collected by the ATLAS experiment from proton-proton collisions at a centre-of-mass energy $\sqrt{s}=$ 8 TeV at the Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb$^{-1}$. The focus is on the contributions to $W$ + jets processes from real $W$ emission, which is achieved by studying events where a muon is observed close to a high transverse momentum jet. At small angular separations, these contributions are expected to be large. Various theoretical models of this process are compared to the data in terms of the absolute cross-section and the angular distributions of the muon from the leptonic $W$ decay.

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。

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