Z' at the LHC: Interference and Finite Width Effects in Drell-Yan

Understand

The interference effects between an extra neutral spin-1 Z'-boson and the Standard Model background in the Drell-Yan channel at the LHC are studied in detail.

• The final state with two oppositely charged leptons is considered.
• The interference contribution to the new physics signal, currently not fully taken into account by experimental collaborations in Z'-searches and in the interpretation of the results, can be substantial.
• It may affect limits or discovery prospects of Z' at the LHC.