AI 中文总结
利用CMS探测器13 TeV数据，首次搜索末态含b喷注的双喷注共振对，给出非共振与共振产生上限，并排除顶夸克对及diquark模型参数空间。
AI 中文摘要
本文报道了对相同质量的双喷注共振对产生的搜索，每个共振对衰变为一个底（b）夸克和一个轻味夸克。该搜索使用了CMS探测器在$\sqrt{s}$ = 13 TeV质子-质子碰撞中收集的积分亮度为136 fb$^{-1}$的数据样本。结果分别针对非共振产生和通过中间共振态进行的四喷注产生两种情况给出。报告了末态含b喷注的四喷注和双喷注共振产生的上限。这是LHC首次对末态含b喷注的完全分辨双喷注共振对共振产生的搜索，其中所有考虑的共振对应非标准模型态。对于非共振产生，最显著的超出出现在平均双喷注质量为1.0 TeV处，局部显著性为2.1个标准差。此外，结果排除了质量在0.5至0.8 TeV之间的顶夸克对产生，扩展了先前对R宇称破坏衰变到奇异夸克和b夸克的搜索。在共振产生搜索中，最显著的超出出现在四喷注共振质量为3.1 TeV和双喷注共振质量为1.3 TeV处，局部显著性为2.6个标准差。结果还用于在95%置信水平上对diquark-to-diquarks模型设定限制，并排除质量在2至7 TeV之间的较重diquark。
英文摘要
A search is presented for pair-produced dijet resonances of identical mass, each decaying into a bottom (b) quark and a light-flavor quark. The search uses a data sample corresponding to an integrated luminosity of 136 fb$^{-1}$ collected with the CMS detector in proton-proton collisions at $\sqrt{s}$ = 13 TeV. Results are presented separately for nonresonant production and for the case where the four-jet production proceeds via an intermediate resonant state. Upper limits are reported on the production of four-jet and dijet resonances with b jets in the final state. This is the first LHC search for resonant production of pairs of fully resolved dijet resonances with b jets in the final state, in which all resonances considered correspond to non-standard-model states. For nonresonant production, the most significant excess occurs at an average dijet mass of 1.0 TeV, with a local significance of 2.1 standard deviations. Additionally, the results exclude pair production of top squarks with masses between 0.5 and 0.8 TeV, extending previous searches for $R$-parity-violating decays to strange and b quarks. In the search for resonant production, the most significant excess occurs at a four-jet resonance mass of 3.1 TeV and a dijet resonance mass of 1.3 TeV, with a local significance of 2.6 standard deviations. The results are also used to set limits at 95% confidence level on the diquark-to-diquarks model and exclude the heavier diquark masses between 2 and 7 TeV.
CommentsSubmitted to the Journal of High Energy Physics. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-24-039 (CMS Public Pages)
