AI Article Synopsis
- The study investigates how Supersymmetry (SUSY) extensions of the Standard Model can explain a significant event excess observed by ATLAS while staying within constraints set by CMS and other searches.
- GMSB-like SUSY scenarios generally do not align well with these constraints or accurately model the data distribution.
- An alternative model involving two massive neutralinos shows promise in better fitting both the total event counts and specific data distributions, and can be implemented in the framework of NMSSM (Next-to-Minimal Supersymmetric Standard Model).
Article 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- signal 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.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4537080 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-015-3591-6 | DOI Listing |
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