https://doi.org/10.1140/epjc/s10052-015-3591-6
Regular Article - Theoretical Physics
Possible explanation of excess events in the search for jets, missing transverse momentum and a Z boson in pp collisions
1
LPT, UMR 8627, CNRS, Université de Paris–Sud, 91405, Orsay, France
2
School of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
* e-mail: ellwange@th.u-psud.fr
Received:
29
May
2015
Accepted:
30
July
2015
Published online:
12
August
2015
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-Z signal region, respecting constraints by CMS on similar signal channels as well as constraints from searches for jets and 
. GMSB-like scenarios are typically in conflict with these constraints, and do not reproduce well the shape of the 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 
and distributions. Such a scenario can be realised within the NMSSM.
© The Author(s), 2015
