Study of the Dijet Mass Spectrum in pp -> W + jets Events at root s=7 TeV
PHYSICAL REVIEW LETTERS, vol.109, no.25, 2012 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 109 Issue: 25
- Publication Date: 2012
- Doi Number: 10.1103/physrevlett.109.251801
- Journal Name: PHYSICAL REVIEW LETTERS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Middle East Technical University Affiliated: Yes
Abstract
We report an investigation of the invariant mass spectrum of the two jets with highest transverse momentum in pp -> W + 2-jet and W + 3-jet events to look for resonant enhancement. The data sample corresponds to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector at root s = 7 TeV. We find no evidence for the anomalous structure reported by the CDF Collaboration, and establish an upper limit of 5.0 pb at 95% confidence level on the production cross section for a generic Gaussian signal with mass near 150 GeV. Additionally, we exclude two theoretical models that predict a CDF-like dijet resonance near 150 GeV. DOI: 10.1103/PhysRevLett.109.251801