Search for New Phenomena in Dijet Events Using 13 TeV Proton-Proton Collision Data Collected With the ATLAS Detector

dc.contributor.advisor	Torrence, Eric
dc.contributor.author	Allen, Benjamin
dc.date.accessioned	2018-09-06T22:01:08Z
dc.date.available	2018-09-06T22:01:08Z
dc.date.issued	2018-09-06
dc.description.abstract	Dijet events are studied in the proton--proton collision dataset recorded at $\sqrt{s}=$13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 37 fb$^{-1}$. Invariant mass distributions are compared to background predictions and no significant deviation is observed. A new method for fitting the background component of the invariant mass distribution is employed. The dataset is used to set upper limits at a 95\% confidence level on a range of new physics scenarios. Excited quarks with masses below 6.0 TeV are excluded, and limits are set on quantum black holes, heavy W' bosons, W* bosons, and a range of masses and couplings in a Z' dark matter mediator model. These results represent a substantial improvement over those obtained previously with lower integrated luminosity.	en_US
dc.identifier.uri	https://hdl.handle.net/1794/23801
dc.language.iso	en_US
dc.publisher	University of Oregon
dc.rights	Creative Commons BY-NC-ND 4.0-US
dc.title	Search for New Phenomena in Dijet Events Using 13 TeV Proton-Proton Collision Data Collected With the ATLAS Detector
dc.type	Electronic Thesis or Dissertation
thesis.degree.discipline	Department of Physics
thesis.degree.grantor	University of Oregon
thesis.degree.level	doctoral
thesis.degree.name	Ph.D.

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