Recoil Mass of Leptons from ZEstimated reading time: 1 minute
- You may find the project at http://cepcgit.ihep.ac.cn/lihawl/llH_Rec. The website is open to register. When you can access the project, use
git clone email@example.com:lihawl/llH_Rec.gitto have a local copy of this project.
The final states of mainly come from the (Higgs-strahlung), where means charged leptons, as shown in the below
The boson can be constructed by the invariant mass of di-lepton, and the Higgs can be constructed by the recoil mass of the . This method of construction of Higgs is independent to how Higgs decays, and allows us measure the cross-section model indepently. You can find more details at Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC.
The lepton candidates are selected by the criterion
Then di-lepton candidates are selected by the criterion
If there are multiple combinations, the combination with smallest is selected. Once the di-lepton is constructed, the recoil mass is calculated by
The invariant mass of di-muon
The recoil mass of di-muon
The invariant mass of di-electron
The recoil mass of di-electron