Search for charged Higgs bosons decaying into top and bottom quarks at s√ = 13 TeV with the ATLAS detector
Search for charged Higgs bosons decaying into top and bottom quarks at s√ = 13 TeV with the ATLAS detector
复制标题
使用 ATLAS 探测器搜索在 s = 13 TeV 处衰变为顶夸克和底夸克的带电希格斯玻色子
DOI：
10.1007/jhep11(2018)085
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
ATLAS collabration
中科院分区：
文献类型：
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作者：
C. Feng;ATLAS collabration
A search for charged Higgs bosons heavier than the top quark and decaying via H±→ tb is presented. The data analysed corresponds to 36.1 fb− 1 of pp collisions atTeV and was recorded with the ATLAS detector at the LHC in 2015 and 2016. The production of a charged Higgs boson in association with a top quark and a bottom quark, pp→ tbH±, is explored in the mass range from m H±= 200 to 2000 GeV using multi-jet final states with one or two electrons or muons. Events are categorised according to the multiplicity of jets and how likely these are to have originated from hadronisation of a bottom quark. Multivariate techniques are used to discriminate between signal and background events. No significant excess above the background-only hypothesis is observed and exclusion limits are derived for the production cross-section times branching ratio of a charged Higgs boson as a function of its mass, which range from 2.9 pb at m H±= 200 GeV to 0.070 pb at m H±= 2000 GeV. The results are interpreted in two benchmark scenarios of the Minimal Supersymmetric Standard Model.
