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arXiv · 1601.05777

Testing ATLAS Z+MET Excess with LHC Run 2

Xiaochuan Lu·Satoshi Shirai·Takahiro Terada
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Abstract

The ATLAS collaboration reported a 3sigma excess in the search of events containing on-Z dilepton, jets, and large missing momentum (MET) in the 8 TeV LHC run. Motivated by this excess, many models of new physics have been proposed. Recently, the ATLAS and CMS collaborations reported new results for similar Z+MET channels in the 13 TeV run. In this paper, we comprehensively discuss the consistency between the proposed models and the LHC results of Run 1 and Run 2. We find that in models with heavy gluino production, there is generically some tension between the 8 TeV and 13 TeV results. On the other hand, models with light squark production provide relatively better fitting to both results.

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Xiaochuan Lu, Satoshi Shirai, Takahiro Terada. 2016-05-11. Testing ATLAS Z+MET Excess with LHC Run 2. https://doi.org/10.1007/jhep05(2016)108

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