title: Possible explanation of excess events in the search for jets, missing transverse momentum and aZboson inppcollisions.
abstract: We study to which extent SUSY extensions of the Standard Model can describe the excess of events of 3.0 standard deviations observed by ATLAS in the on-Zsignal region, respecting constraints by CMS on similar signal channels as well as constraints from searches for jets and [Formula: see text]. GMSB-like scenarios are typically in conflict with these constraints, and do not reproduce well the shape of the [Formula: see text] distribution of the data. An alternative scenario with two massive neutralinos can improve fits to the total number of events as well as to the [Formula: see text] and [Formula: see text] distributions. Such a scenario can be realised within the NMSSM.
authors: LPT, UMR 8627, CNRS, Université de Paris-Sud, 91405 Orsay, France ; School of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ UK.
authors: Ulrich
authors: U
authors: Ellwanger