Searches for third-generation squark production in fully hadronic final states in proton-proton collisions at sqrt(s) = 8 TeV

TL;DR

This paper reports on searches for third-generation squarks in fully hadronic final states at 8 TeV proton-proton collisions, using CMS data, with no significant excess found, setting new limits on squark production.

Contribution

It introduces three optimized, mutually exclusive search strategies for different decay topologies of third-generation squarks at the LHC.

Findings

No excess above standard model expectations was observed.

Limits were set on top and bottom squark production cross sections.

The results constrain supersymmetry models involving third-generation squarks.

Abstract

Searches for third-generation squarks in fully hadronic final states are presented using data samples corresponding to integrated luminosities of 19.4 or 19.7 inverse femtobarns, collected at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC. Three mutually exclusive searches are presented, each optimized for a different decay topology. They include a multijet search requiring one fully reconstructed top quark, a dijet search requiring one or two jets originating from b quarks, and a monojet search. No excesses above the standard model expectations are seen, and limits are set on top and bottom squark production in the context of simplified models of supersymmetry.