Search for the standard model Higgs boson in the H->ZZ->2l2nu decay channel in the CMS Experiment

TL;DR

This paper reports a search for the Standard Model Higgs boson in the H->ZZ->2l2nu decay channel using CMS data at 7 and 8 TeV, setting limits and excluding certain mass ranges.

Contribution

It presents the first search for the Higgs boson in this specific decay channel at the LHC, optimizing for different production processes and providing exclusion limits.

Findings

No significant excess observed above background

Excludes Higgs boson masses between 278-600 GeV/c2 at 95% CL

Sets upper limits on Higgs production cross section

Abstract

A search for the Standard Model Higgs boson in the H->ZZ->2l2nu decay channel, where l = e or mu, in pp collisions at a center-of-mass energy of both 7 and 8 TeV is presented. The data were collected at the LHC, with the CMS detector, and correspond to an integrated luminosity of 5.0 fb-1 at 7 TeV and 5.0 fb-1 at 8 TeV. The search is optimized separately for the vector boson fusion and the gluon fusion production processes.No significant excess is observed above the background expectation, and upper limits are set on the Higgs boson production cross section. The presence of the standard model Higgs boson with a mass in the 278-600 GeV/c2 range is excluded at 95% confidence level.