Abstract
A variety of new physics models predict heavy resonances that decay to multiple hadronic jets. These models include axigluons, colorons, diquarks, excited quarks, Randall-Sundrum gravitons, string resonances, and Z' models, among others. Other models make the prediction that high-pT jets will be suppressed, resulting in jet extinction. Using the data collected in 2012 at a center-of-mass energy of 8 TeV, the CMS Collaboration has made a baseline inclusive jet cross section measurement for comparison with new-physics searches, and then performed searches for jet extinction and resonances that decay to two hadronic jets. The results of these searches will be presented. No evidence of new physics has been observed, and these results set new limits on the parameters of these models.
Highlights
A major goal of the Compact Muon Solenoid (CMS) experiment [1] at the Large Hadron Collider (LHC) is the discovery of new physics (NP) beyond the standard model (SM)
Several CMS analyses have exploited this rich data set to make a measurement of the inclusive jet cross section and to search for these NP signals
The measurement provides a method of assessment of Quantum Chromodynamic (QCD) calculation frameworks and parton distribution functions (PDFs) used with those frameworks
Summary
A major goal of the Compact Muon Solenoid (CMS) experiment [1] at the Large Hadron Collider (LHC) is the discovery of new physics (NP) beyond the standard model (SM). Several CMS analyses have exploited this rich data set to make a measurement of the inclusive jet cross section and to search for these NP signals. Double-differential inclusive jet cross section (points) in comparison to NLO predictions (red lines) using the NNPDF2.1 PDF set. The inclusive jet cross section provides an important baseline for comparison with new-physics models. CMS has performed the measurement of the double-differential inclusive jet cross section in terms of pT and rapidity by using 10.7 fb−1 of the 2012 8 TeV pp dataset [2]. All match data within the uncertainties except for ABM11 in certain rapidity ranges. These results provide strong confirmation for the NLOJet++ calculations and PDFs
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