Relationship between dark photon delta R and gamma
Session Number
Project ID: PHYS 09
Advisor(s)
Dr. Peter Dong; Illinois Mathematics and Science Academy
Discipline
Physical Science
Start Date
19-4-2023 10:50 AM
End Date
19-4-2023 11:05 AM
Abstract
The dark photon is part of a dark sector beyond Standard Model theory that aims to explain dark matter. The dark photon can interact weakly with the Standard Model via kinetic mixing, allowing the dark photon to decay into leptons. These leptons form lepton jets, pairs of opposite-sign, collimated leptons, because of their relativistic boost, gamma, from the dark photon’s high mass. The purpose of this study is to analyze the relationship between gamma and ΔR, the angular distance between a lepton jet. We discover that gamma and ΔR are inversely proportional, using this relationship to determine the acceptance of ΔR and gamma. These results will translate a limit in cross-section to a limit on parent particle mass which will enable us to specify what range of parent masses are ruled out by our study, as a function of the dark photon’s mass.
Relationship between dark photon delta R and gamma
The dark photon is part of a dark sector beyond Standard Model theory that aims to explain dark matter. The dark photon can interact weakly with the Standard Model via kinetic mixing, allowing the dark photon to decay into leptons. These leptons form lepton jets, pairs of opposite-sign, collimated leptons, because of their relativistic boost, gamma, from the dark photon’s high mass. The purpose of this study is to analyze the relationship between gamma and ΔR, the angular distance between a lepton jet. We discover that gamma and ΔR are inversely proportional, using this relationship to determine the acceptance of ΔR and gamma. These results will translate a limit in cross-section to a limit on parent particle mass which will enable us to specify what range of parent masses are ruled out by our study, as a function of the dark photon’s mass.