Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
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DOI：
10.1103/physrevd.89.012003
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发表时间：
2013-10
期刊：
影响因子：
--
通讯作者：
Cms Collaboration
中科院分区：
文献类型：
--
作者：
Cms Collaboration
本文报道了在W（μν）H，W（eν）H，W（τν）H，Z（μμ）H，Z（e ν）H和Z（νν）H通道中寻找标准模型希格斯玻色子（H）衰变为bb的过程。搜索是在LHC的CMS实验记录的积分光度数据样本中进行的，这些数据样本对应的积分光度在20 s = 7 TeV时高达5.1 fb−1，在20 s = 8 TeV时高达18.9 fb−1。在预期的背景之上观察到过量的事件，对于质量为125 GeV的希格斯玻色子，局部显著性为2.1标准差，与标准模型希格斯玻色子的生产预期一致。相对于标准模型的希格斯玻色子，对应于这个过量的信号强度是1.0± 0.5。发表于Physical Review D，doi：10.1103/PhysRevD.89.012003。c © 2014 CERN，以利于CMS协作。CC-BY-3.0许可证编号协作成员列表见附录A ar X iv：1 31 0。36 87 v2 [ he pex ] 1 4 Fe B 20 14
A search for the standard model Higgs boson (H) decaying to bb when produced in association with a weak vector boson (V) is reported for the following channels: W(μν)H, W(eν)H, W(τν)H, Z(μμ)H, Z(ee)H, and Z(νν)H. The search is performed in data samples corresponding to integrated luminosities of up to 5.1 fb−1 at √ s = 7 TeV and up to 18.9 fb−1 at √ s = 8 TeV, recorded by the CMS experiment at the LHC. An excess of events is observed above the expected background with a local significance of 2.1 standard deviations for a Higgs boson mass of 125 GeV, consistent with the expectation from the production of the standard model Higgs boson. The signal strength corresponding to this excess, relative to that of the standard model Higgs boson, is 1.0± 0.5. Published in Physical Review D as doi:10.1103/PhysRevD.89.012003. c © 2014 CERN for the benefit of the CMS Collaboration. CC-BY-3.0 license ∗See Appendix A for the list of collaboration members ar X iv :1 31 0. 36 87 v2 [ he pex ] 1 4 Fe b 20 14