arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1108.6311hep-ex
收藏

利用ATLAS探测器在sqrt(s)= 7 TeV条件下收集的1 fb^-1 pp碰撞数据在Dijet质量分布中寻找新物理

Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

ATLAS Collaboration

摘要:

利用ATLAS在2011年记录的对应于积分亮度为1.0 fb^-1的数据集,研究了质心能量sqrt(s)=7 TeV的LHC质子-质子碰撞中产生的喷流对(双喷流)的不变质量分布。在数据中观察到的双喷流质量高达~4 TeV,没有证据表明共振生产超过background是found. Limits设置在95%CL为几个新的物理假设:激发夸克被排除在质量低于2.99 TeV,轴胶子被排除在质量低于3.32 TeV,和颜色八隅标量共振被排除在质量低于1.92 TeV。

英文摘要:

Invariant mass distributions of jet pairs (dijets) produced in LHC proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb^-1 recorded in 2011 by ATLAS. Dijet masses up to ~4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95% CL for several new physics hypotheses: excited quarks are excluded for masses below 2.99 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.

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。

↑