A Comparison of Various Dark Photon Production Mechanisms

Session Number

Project ID: PHYS 04

Advisor(s)

Dr. Peter Dong; Illinois Mathematics and Science Academy

Discipline

Physical Science

Start Date

19-4-2023 9:20 AM

End Date

19-4-2023 9:35 AM

Abstract

A dark photon (ZD) is a theoretical boson in a new Abelian U(1) gauge symmetry which is predicted by various dark sector models. Dark photons originating from different models can all decay to collimated lepton jets via a process known as kinetic mixing. Production mechanisms for dark photons can vary widely but generally make use of a dark pseudoscalar. I present five different production mechanisms, or portals, generating dark photons from Higgs bosons, supersymmetric particles, and Z' bosons. I also compare the event signatures corresponding to each production mechanism and show that limits for each production mechanism can be parameterized from a single portal.

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Apr 19th, 9:20 AM Apr 19th, 9:35 AM

A Comparison of Various Dark Photon Production Mechanisms

A dark photon (ZD) is a theoretical boson in a new Abelian U(1) gauge symmetry which is predicted by various dark sector models. Dark photons originating from different models can all decay to collimated lepton jets via a process known as kinetic mixing. Production mechanisms for dark photons can vary widely but generally make use of a dark pseudoscalar. I present five different production mechanisms, or portals, generating dark photons from Higgs bosons, supersymmetric particles, and Z' bosons. I also compare the event signatures corresponding to each production mechanism and show that limits for each production mechanism can be parameterized from a single portal.