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Access Type

WSU Access

Date of Award

January 2019

Degree Type


Degree Name



Physics and Astronomy

First Advisor

Paul E. Karchin


We report results on the nonresonant search for contact interactions (CI) in the muon channel, using data collected during the 2016 run, in proton-proton collisions at sqrt(s) = 13 TeV by the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN. The analyzed data correspond to integrated luminosities of about 36 fb$^{-1}$. Results are interpreted in the context of left-left (LL), left-right (LR), and right-right (RR) quark and lepton compositeness models with an energy scale parameter $\Lambda$. Using information from the invariant mass we set 95 \% confidence level lower limits on $\Lambda$ for both destructive and constructive interference models.

The CMS experiment Monte Carlo (MC) generators group has created a Cross Section Database (XSDB) Tool to store information related to its centrally produced MC samples. XSDB utilizes a non-relational database back-end to store the MC sample information and FLASK web development software for the front-end user interface. Users within the CMS community now have the ability to easily search for cross section information related to a sample of interest from amongst thousands of centrally produced MC samples. In this talk, we explain the use of XSDB and how its features make searching for MC cross section information in CMS simple and easy.

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