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 2403.04869hep-ex
收藏

在质子-质子碰撞 $\sqrt{s}=13$ TeV 下利用 ATLAS 探测器观测 $W^+W^-$ 联合喷注的电弱产生

Observation of electroweak production of $W^+W^-$ in association with jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector

ATLAS Collaboration

AI总结:

基于 ATLAS 探测器 140 fb$^{-1}$ 的数据,本文在质子-质子碰撞中观测到 $W^+W^-$ 联合喷注的电弱产生,测得截面为 $2.7\pm0.5$ fb,与理论预测一致,可用于探究标准模型电弱对称性破缺机制。

摘要:

本文基于 ATLAS 探测器在质子-质子碰撞 $\sqrt{s}=13$ TeV 下收集的 140 fb$^{-1}$ 数据,对伴随两个喷注产生的带有相反电荷的 $W$ 玻色子进行了测量。该分析对 $W$ 玻色子散射十分敏感,这可用于探究标准模型的电弱对称性破缺机制,在 ATLAS 物理项目中备受关注。该信号超出本底预期的观测显著性为 7.1 个标准差,而预期显著性为 6.2 个标准差。在信号富集的 fiducial 相空间内测得的截面为 $2.7\pm0.5$ fb,与 $2.20^{+0.14}_{-0.13}$ fb 的理论预测一致。

英文摘要:

A measurement of the production of $W$ bosons with opposite electric charges in association with two jets is presented based on 140 fb$^{-1}$ of data collected by the ATLAS detector in proton-proton collisions at $\sqrt{s}=13$ TeV. The analysis is sensitive to the scattering of $W$ bosons, which is of particular interest in the ATLAS physics programme as it can be used to probe the electroweak symmetry breaking mechanism of the Standard Model. This signal is observed with a significance of 7.1 standard deviations above the background expectation, while 6.2 standard deviations were expected. The measured cross-section is determined in a signal-enriched fiducial volume and is found to be $2.7\pm0.5$ fb, which is consistent with the theoretical prediction of $2.20^{+0.14}_{-0.13}$ fb.

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。

↑