标题： 寻找 H0 -> bbbar 在 LHC 上 显示英文标题

标题： Finding H0 -> bbbar at the LHC

摘要： 我们研究了CMS探测Higgs玻色子在H0→bb̄通道中的灵敏度。出色的b标记性能和良好的喷注分辨率是成功事件选择的主要要求。 在标准模型（SM）中，如果Higgs质量轻于m(H0)=125 GeV，在LHC的最初几年内即可获得tH0→l±νqq̄bb̄bb̄通道。同时，大多数MSSM（最小超对称标准模型）参数空间可以被覆盖。 W±H0→l±νbb̄通道只有在高亮度下才能在LHC中获得。在这两个通道中，质量可以以几个百分点的精度确定，Higgs耦合强度也可以达到10%左右的水平。 显示英文摘要

摘要： We have investigated the sensitivity of CMS for finding the Higgs boson in the H0 -> bbbar channel. An excellent b-tagging performance and a good jet resolution are the main requirements needed for a successful event selection. In the Standard Model (SM), the ttbar H0 -> l+- nu qqbar bbbar bbbar channel is accessible, if the Higgs mass is lighter than m(H0) = 125 GeV, already during the first years of the LHC. Also, most of the MSSM (Minimal Supersymmetric Standard Model) parameter space can be covered. The W+- H0 -> l+- nu bbbar channel is only accessible with high luminosity at the LHC. In both channels the mass can be determined with a precision of a few per cent and the Higgs couplings at the level of 10%.