Search for New Physics with Jets and Missing Transverse Momentum in pp collisions at sqrt(s) = 7 TeV

TL;DR

This paper reports a search for new physics involving jets and missing transverse momentum in 7 TeV proton-proton collisions, finding no excess and setting limits on supersymmetric models and simplified scenarios.

Contribution

First search using CMS data at 7 TeV for events with jets and missing momentum, setting new exclusion limits on supersymmetric and simplified models.

Findings

No excess events observed over standard model predictions.

Exclusion limits set on supersymmetric models.

Cross section limits established for simplified models.

Abstract

A search for new physics is presented based on an event signature of at least three jets accompanied by large missing transverse momentum, using a data sample corresponding to an integrated luminosity of 36 inverse picobarns collected in proton--proton collisions at sqrt(s)=7 TeV with the CMS detector at the LHC. No excess of events is observed above the expected standard model backgrounds, which are all estimated from the data. Exclusion limits are presented for the constrained minimal supersymmetric extension of the standard model. Cross section limits are also presented using simplified models with new particles decaying to an undetected particle and one or two jets.