Study of the Dijet Mass Spectrum in pp→W+jets Events at s=7TeV
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 5.0fb-1 collected with the CMS detector at s=7TeV. 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.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2012
- DOI:
- 10.1103/PhysRevLett.109.251801
- arXiv:
- arXiv:1208.3477
- Bibcode:
- 2012PhRvL.109y1801C
- Keywords:
-
- 12.15.Ji;
- 12.38.Qk;
- 13.85.Rm;
- 14.80.-j;
- Applications of electroweak models to specific processes;
- Experimental tests;
- Limits on production of particles;
- Other particles;
- High Energy Physics - Experiment
- E-Print:
- Replaced with published version. Added journal reference and DOI