TL;DR
This paper evaluates CMS detector sensitivity for discovering the Higgs boson decaying into bottom quark pairs, emphasizing the importance of b-tagging and jet resolution, with potential early detection for Higgs masses below 125 GeV.
Contribution
It presents a detailed analysis of CMS capabilities for H0 -> bbbar detection, highlighting the experimental requirements and potential for early discovery in specific channels.
Findings
Higgs mass can be determined with a few percent precision.
Higgs couplings can be measured at the 10% level.
Early detection possible for Higgs lighter than 125 GeV.
Abstract
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%.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · High-Energy Particle Collisions Research