17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

Elastic Z0 production at HERA

18 Jul 2013, 10:15
F2 (KTH Campus)


KTH Campus

Talk presentation Top and Electroweak Physics Top and Electroweak Physics


Dr Junpei Maeda (Tokyo Metropolitan University)


A search for events ep-> ep Z0 has been performed in ep collisions at HERA using the ZEUS detector. The search is based on the entire HERA-I and HERA-II data set, amounting to 0.49 fb-1 of integrated luminosity. The Z0 was searched in the di-jet decay mode with elastic condition defined by etamax < 3, where etamax is defined as the pseudorapidity of the energy deposit in the calorimeter closest to the proton beam direction.A di-jet mass peak is observed at the Z0 mass and the number of signal events is extracted from a fit to the mass spectrum. The elastic Z0 production cross section is determined and compared to SM prediction.

Primary author

Aharon Levy (Tel Aviv University (IL))

Presentation Materials