arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1407.1376hep-ex
收藏

用带有ATLAS探测器的$\sqrt{s}=8$ TeV的$p-p$碰撞数据寻找双射流质量分布中的新现象

Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector

ATLAS Collaboration

摘要:

利用ATLAS探测器研究了质心能量为$\sqrt{s}=8$ TeV的大型强子对撞机质子-质子碰撞中产生的双喷流事件,使用了2012年的完整数据集,积分亮度为20.3 fb $^{-1}$。探测到约4.5 TeV的Dijet质量。在双射流质谱中没有观察到共振样特征。对于质量或能量标度方面的新现象的各种假设,截面时间验收限值设定为95%可信度水平。这个分析排除了质量低于4.09 TeV的激发夸克,质量低于2.72 TeV的色八隅标量,质量低于2.45 TeV的重$W'$玻色子,质量低于1.75 TeV的手征${W^\ast}$玻色子,以及阈值质量低于5.82 TeV的具有6个额外时空维度的量子黑洞。

英文摘要:

Dijet events produced in LHC proton--proton collisions at a center-of-mass energy $\sqrt{s}=8$ TeV are studied with the ATLAS detector using the full 2012 data set, with an integrated luminosity of 20.3 fb$^{-1}$. Dijet masses up to about 4.5 TeV are probed. No resonance-like features are observed in the dijet mass spectrum. Limits on the cross section times acceptance are set at the 95% credibility level for various hypotheses of new phenomena in terms of mass or energy scale, as appropriate. This analysis excludes excited quarks with a mass below 4.09 TeV, color-octet scalars with a mass below 2.72 TeV, heavy $W'$ bosons with a mass below 2.45 TeV, chiral ${W^\ast}$ bosons with a mass below 1.75 TeV, and quantum black holes with six extra space-time dimensions with threshold mass below 5.82 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。

↑