遇见数据集

"Table 17" of "Search for strong production of supersymmetric particles in final states with missing transverse momentum and at least three $b$-jets at $\sqrt{s}$= 8 TeV proton-proton collisions with the ATLAS detector"

收藏
Mendeley Data2024-06-25 更新2024-06-28 收录
数据链接:
官方服务:

资源简介:

CERN-LHC. This paper reports the results of a search for strong production of supersymmetric particles in 20.1 fb-1 of proton-proton collisions at a centre-of-mass energy of 8 TeV using the ATLAS detector at the LHC. The search is performed separately in events with either zero or at least one high-pT lepton (electron or muon), large missing transverse momentum, high jet multiplicity and at least three jets identified as originated from the fragmentation of a b-quark. No excess is observed with respect to the Standard Model predictions. The results are interpreted in the context of several supersymmetric models involving gluinos and scalar top and bottom quarks, as well as a mSUGRA/CMSSM model. Gluino masses up to 1340 GeV are excluded, depending on the model, significantly extending the previous ATLAS limits.

欧洲核子研究组织-大型强子对撞机(CERN-LHC)。本论文报告了利用大型强子对撞机(LHC)上的ATLAS探测器,在质心系能量为8 TeV、积分亮度20.1 fb⁻¹的质子-质子对撞数据中,搜寻超对称粒子(supersymmetric particles)强产生过程的研究结果。本次搜寻分别针对两类事例展开:一类为不含高横向动量(pT, transverse momentum)轻子(lepton)的事例,另一类为至少包含一个高横向动量轻子的事例;两类事例均需满足大缺失横向动量、高喷注多重数,且至少存在3个被认定为起源于底夸克(b-quark)碎裂的喷注。未观测到超出标准模型(Standard Model)预言的信号超额。研究结果在多个涉及胶微子(gluino)、标量顶夸克(scalar top quark)与标量底夸克(scalar bottom quark)的超对称模型,以及最小超引力(mSUGRA)/约束型最小超对称标准模型(CMSSM)的框架下进行了解释。根据不同模型,质量最高达1340 GeV的胶微子参数空间均被排除,该结果显著拓展了ATLAS合作组此前的实验限制。

创建时间:
2023-06-28
二维码
社区交流群
二维码
科研交流群
商业服务