We will have a talk on Probing Dark Sector Dynamics at the LHC by Reinard Primulando (Parahyangan Catholic U., Indonesia) from 2:00 pm of Tuesday, October 15th onwards at the "Tea Room", 123 Physics I Building, Chulalongkorn University.

Abstract: In this talk, I will review some ways of probing dark sector dynamics at the LHC. In particular, I will consider the case where dark matter is charged under a hidden U(1) symmetry. The U(1) gauge boson, or Z', kinetically mixes with the Standard Model U(1). For small mixing, direct 2 → 1 production of the Z' is not visible in standard resonance searches due to the sizeable Drell-Yan background. However, the Z' boson may be produced in processes involving other dark sector particles, resulting in final states with a Z' resonance and missing transverse momentum. I will show the results of recasting the ATLAS Run 2 search for dilepton resonances associated with missing energy. I will identify the parts where improvements to the ALTAS search can be made to constrain Z’ production.