Doubly charged Higgs mass reconstruction efficiency and background estimate
Advisor(s)
Dr. Peter Dong; Illinois Mathematics and Science Academy
Discipline
Physical Science
Start Date
21-4-2021 10:45 AM
End Date
21-4-2021 11:05 AM
Abstract
The doubly charged Higgs is a scalar boson with +2 or -2 charge, characteristic of the left-right symmetric model. These particles are pair-produced in a quark-antiquark annihilation, and decay to two leptons (electrons, positrons, muons, or anti-muons) of the same charge. In a search for these doubly-charged Higgs, which decay rapidly, and therefore cannot be easily found by the detector, the lepton pair products’ invariant mass instead is measured. The mass reconstruction efficiency -- the percentage of reconstructed doubly charged Higgs bosons whose mass falls within a certain range of the expected Higgs mass -- of the generated samples was checked, and background Standard Model processes, like Drell-Yan, ttbar, ZZ, and WZ processes, which also result in lepton products, were also considered.
Doubly charged Higgs mass reconstruction efficiency and background estimate
The doubly charged Higgs is a scalar boson with +2 or -2 charge, characteristic of the left-right symmetric model. These particles are pair-produced in a quark-antiquark annihilation, and decay to two leptons (electrons, positrons, muons, or anti-muons) of the same charge. In a search for these doubly-charged Higgs, which decay rapidly, and therefore cannot be easily found by the detector, the lepton pair products’ invariant mass instead is measured. The mass reconstruction efficiency -- the percentage of reconstructed doubly charged Higgs bosons whose mass falls within a certain range of the expected Higgs mass -- of the generated samples was checked, and background Standard Model processes, like Drell-Yan, ttbar, ZZ, and WZ processes, which also result in lepton products, were also considered.